| X | ||||||||||
|
- Definition
If the value is true, then the document is an amendment to previously-filed/accepted document. No definition available.
|
| X | ||||||||||
|
- Definition
End date of current fiscal year in the format --MM-DD. No definition available.
|
| X | ||||||||||
|
- Definition
This is focus fiscal period of the document report. For a first quarter 2006 quarterly report, which may also provide financial information from prior periods, the first fiscal quarter should be given as the fiscal period focus. Values: FY, Q1, Q2, Q3, Q4, H1, H2, M9, T1, T2, T3, M8, CY. No definition available.
|
| X | ||||||||||
|
- Definition
This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. No definition available.
|
| X | ||||||||||
|
- Definition
The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word "Other". No definition available.
|
| X | ||||||||||
|
- Definition
A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument. No definition available.
|
| X | ||||||||||
|
- Definition
Indicate "Yes" or "No" whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
|
| X | ||||||||||
|
- Definition
Indicate whether the registrant is one of the following: (1) Large Accelerated Filer, (2) Accelerated Filer, (3) Non-accelerated Filer, (4) Smaller Reporting Company (Non-accelerated) or (5) Smaller Reporting Accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
|
| X | ||||||||||
|
- Definition
State aggregate market value of voting and non-voting common equity held by non-affiliates computed by reference to price at which the common equity was last sold, or average bid and asked price of such common equity, as of the last business day of registrant's most recently completed second fiscal quarter. The public float should be reported on the cover page of the registrants form 10K. No definition available.
|
| X | ||||||||||
|
- Definition
The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Indicate "Yes" or "No" if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. No definition available.
|
| X | ||||||||||
|
- Definition
Indicate "Yes" or "No" if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A. No definition available.
|
| X | ||||||||||
|
- Definition
Trading symbol of an instrument as listed on an exchange. No definition available.
|
| X | ||||||||||
|
- Definition
Income before interest income, interest expense and income taxes No definition available.
|
| X | ||||||||||
|
- Definition
Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Cost of oil and gas purchased during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Cost of electricity purchased as well as fuel used to generate electricity used in operations and sold during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate revenue, whether regulated or unregulated, derived from the generation, transmission and distribution of electricity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fuel costs incurred that are directly related to goods produced and sold and services rendered during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale. No definition available.
|
| X | ||||||||||
|
- Definition
Revenue derived from the regulated (by a federal, state, or local government or agency) generation, transmission and distribution of [natural] gas. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Interest and debt related expenses associated with nonoperating financing activities of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of the cost of borrowed funds accounted for as interest expense for debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Interest expense on all other items not previously classified. For example, includes dividends associated with redeemable preferred stock of a subsidiary that is treated as a liability in the parent's consolidated balance sheet. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The net result for the period of deducting operating expenses from operating revenues. No definition available.
|
| X | ||||||||||
|
- Definition
The aggregate amount of other expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating expense recognized during the period. Such amounts may include: (a) unusual costs, (b) loss on foreign exchange transactions, (c) losses on securities (net of profits), and (d) miscellaneous other expense items. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Revenues from the sale of other goods or rendering of other services, not elsewhere specified in the taxonomy; net of (reduced by) sales adjustments, returns, allowances, and discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The component of the allowance for funds used during construction during the period based on an assumed rate of return on equity funds used in financing the construction of regulated assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount capitalized of allowance for funds used during construction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Revenue generated from providing steam products and services to various industries. Steam is used in oil refineries, pulp and paper mills, chemical production (such as ethylene and ammonia), food and grain processing, and textiles. Steam is also used in the heating and cooling of urban commercial and residential buildings. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
All taxes not related to income of the entity or excise or sales taxes levied on the revenue of the entity that are not reported elsewhere. These taxes could include production, real estate, personal property, and pump tax. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of other operating expense of regulated operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Consolidated Statement of Comprehensive Income (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| NET INCOME | $ 1,092 | $ 1,062 | $ 1,141 |
| OTHER COMPREHENSIVE INCOME/(LOSS), NET OF TAXES | |||
| Pension and other postretirement benefit plan liability adjustments, net of taxes | (20) | 28 | 5 |
| TOTAL OTHER COMPREHENSIVE INCOME/(LOSS), NET OF TAXES | (20) | 28 | 5 |
| COMPREHENSIVE INCOME | 1,072 | 1,090 | 1,146 |
| Cumulative preferred dividends | (3) | ||
| COMPREHENSIVE INCOME FOR COMMON STOCK | 1,072 | 1,090 | 1,143 |
|
CECONY [Member]
|
|||
| NET INCOME | 1,058 | 1,020 | 1,017 |
| OTHER COMPREHENSIVE INCOME/(LOSS), NET OF TAXES | |||
| Pension and other postretirement benefit plan liability adjustments, net of taxes | (5) | 3 | (1) |
| TOTAL OTHER COMPREHENSIVE INCOME/(LOSS), NET OF TAXES | (5) | 3 | (1) |
| COMPREHENSIVE INCOME | 1,053 | 1,023 | 1,016 |
| Cumulative preferred dividends | $ (3) | ||
| X | ||||||||||
|
- Definition
Comprehensive Income Available to Common Stockholders, Net of Tax No definition available.
|
| X | ||||||||||
|
- Definition
Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after tax and reclassification adjustments of other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Net Cash Proceeds From Securitization After Termination Of Securitization And Associated Deal Costs No definition available.
|
| X | ||||||||||
|
- Definition
The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Future cash outflow to pay for construction in progress expenditures that have occurred. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Gain (loss) related to the termination of a contract between the parties. The termination may be due to many causes including early termination of a lease by a lessee, a breach of contract by one party, or a failure to perform. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The difference between the book value and the sale price of options, swaps, futures, forward contracts, and other derivative instruments. This element refers to the gain (loss) included in earnings. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale. No definition available.
|
| X | ||||||||||
|
- Definition
The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in the value of expenditures made during the current reporting period for benefits that will be received over a period of years. Deferred charges differ from prepaid expenses in that they usually extend over a long period of time and may or may not be regularly recurring costs of operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Change during the period in carrying value for all deferred liabilities due within one year or operating cycle. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net cash inflow or outflow for the increase (decrease) in the beginning and end of period deposits balances. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in income taxes receivable, which represents the amount due from tax authorities for refunds of overpayments or recoveries of income taxes paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in interest payable, which represents the amount owed to note holders, bond holders, and other parties for interest earned on loans or credit extended to the reporting entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in other liabilities used in operating activities not separately disclosed in the statement of cash flows. May include changes in other current liabilities, other noncurrent liabilities, or a combination of other current and noncurrent liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in other amounts due to the reporting entity, which are not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in the amount due to fund pension and non-pension benefits to employees, retired and disabled former employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the period in the amount of cash payments due to taxing authorities for non-income-related taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net cash inflow or outflow for the increase (decrease) associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of cash paid for interest during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of cash inflow (outflow) of financing activities, excluding discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Other increase (decrease) not attributable to current expense nor cash payments during an accounting period in estimated obligations recorded for probable future costs attributable to environmental contamination issues. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Other income (expense) included in net income that results in no cash inflows or outflows in the period. Includes noncash adjustments to reconcile net income (loss) to cash provided by (used in) operating activities that are not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow from construction costs to date on capital projects that have not been completed and assets being constructed that are not ready to be placed into service. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net cash outflow or inflow from other investing activities. This element is used when there is not a more specific and appropriate element in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net cash inflow or outflow from the costs of disposing of plant, whether by demolishing, dismantling, abandoning, sale, and so forth during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow to reacquire common stock during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow for reacquisition of callable preferred stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of cash outflow in the form of ordinary dividends to preferred shareholders of the parent entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Cash outflow in the form of ordinary dividends to common shareholders, preferred shareholders and noncontrolling interests, generally out of earnings. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow from the amount invested for projects in hopes of getting a future return or interest from it. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of cash or cash equivalents contributed during the reporting period by the entity to fund its pension plans and its non-pension postretirement benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow associated with the deconsolidation of a previously consolidated subsidiary or the sale of investment in consolidated subsidiaries (generally greater than 50 percent). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net cash inflow or outflow for borrowing having initial term of repayment within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total increase in earnings in the period representing the cost of equity (based on assumed rate of return) and/or borrowed funds (based on interest rate) used to finance construction of regulated assets, which is expected to be recovered through rate adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Current portion of intercompany tax payable No definition available.
|
| X | ||||||||||
|
- Definition
Represents the noncurrent portion of deferred tax liabilities and the reserve for accumulated deferred investment tax credits as of the balance sheet date, which result from applying the applicable tax rate to net taxable temporary differences pertaining to each jurisdiction to which the entity is obligated to pay income tax. A noncurrent taxable temporary difference is a difference between the tax basis and the carrying amount of a noncurrent asset or liability in the financial statements prepared in accordance with generally accepted accounting principles. In a classified statement of financial position, an enterprise shall separate deferred tax liabilities and assets into a current amount and a noncurrent amount. Deferred tax liabilities and assets shall be classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, shall be classified according to the expected reversal date of the temporary difference. This is the remaining investment credit, which will reduce the cost of services collected from ratepayers by a ratable portion over the investment's regulatory life. No definition available.
|
| X | ||||||||||
|
- Definition
Energy related inventory, fuel oil, gas and materials and supplies, cost No definition available.
|
| X | ||||||||||
|
- Definition
Tangible assets that are held by an entity for use in the production or supply of utilities and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. No definition available.
|
| X | ||||||||||
|
- Definition
Tangible assets that are held by an entity for use other than utility production; net of accumulated depreciation. No definition available.
|
| X | ||||||||||
|
- Definition
Provision for injuries and damages. No definition available.
|
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable after twelve months or beyond the next operating cycle if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of receivable reflecting the cost incurred on uncompleted contracts in excess of related billings which is expected to be collected within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The current portion of money or property received from customers which is either to be returned upon satisfactory contract completion or applied to customer receivables in accordance with the terms of the contract or the understandings. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment within one year or during the operating cycle, if shorter. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership, due within 1 year (or 1 business cycle). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of obligation due after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate carrying amount, as of the balance sheet date, of current assets not separately disclosed in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer. No definition available.
|
| X | ||||||||||
|
- Definition
Aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Carrying amount as of the balance sheet date of unearned revenue or income not otherwise specified in the taxonomy which is expected to be taken into income after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate carrying amount of current liabilities (due within one year or within the normal operating cycle if longer) not separately disclosed in the balance sheet. Includes costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered and of liabilities not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amounts due as of the balance sheet date from parties or arising from transactions not otherwise specified in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This represents the noncurrent liability for underfunded plans recognized in the balance sheet that is associated with the defined benefit pension plans and other postretirement defined benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Period end book value of accumulated depreciation on property, plant and equipment (PPE) that is owned by the regulated operations of the public utility. No definition available.
|
| X | ||||||||||
|
- Definition
Period end amount of property, plant and equipment (PPE) related to regulated assets common to business units. No definition available.
|
| X | ||||||||||
|
- Definition
Period end amount of construction work in progress in public utility. No definition available.
|
| X | ||||||||||
|
- Definition
Period end amount of total net PPE. No definition available.
|
| X | ||||||||||
|
- Definition
Period end amount of total gross PPE. No definition available.
|
| X | ||||||||||
|
- Definition
Period end amount of property, plant and equipment (PPE) related to transmission and distribution owned by public utility. No definition available.
|
| X | ||||||||||
|
- Definition
Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are expected to be recovered through revenue sources within one year or the normal operating cycle, if longer. Such costs are capitalized if they meet both of the following criteria: a. It is probable that future revenue in an amount at least equal to the capitalized cost will result from inclusion of that cost in allowable costs for rate-making purposes. b. Based on available evidence, the future revenue will be provided to permit recovery of the previously incurred cost rather than to provide for expected levels of similar future costs. If the revenue will be provided through an automatic rate-adjustment clause, this criterion requires that the regulator's intent clearly be to permit recovery of the previously incurred cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount for the individual regulatory current liability as itemized in a table of regulatory current liabilities as of the end of the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount for the individual regulatory noncurrent liability as itemized in a table of regulatory noncurrent liabilities as of the end of the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Consolidated Balance Sheet (Parenthetical) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Accounts receivable - customers, allowance for uncollectible accounts | $ 96 | $ 93 |
| Other receivables, allowance for uncollectible accounts | 10 | 10 |
| Non-utility property, accumulated depreciation | 91 | 90 |
| Intangible assets, accumulated amortization | 4 | 4 |
|
CECONY [Member]
|
||
| Accounts receivable - customers, allowance for uncollectible accounts | 90 | 87 |
| Other receivables, allowance for uncollectible accounts | 8 | 8 |
| Non-utility property, accumulated depreciation | $ 25 | $ 25 |
| X | ||||||||||
|
- Definition
Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
A valuation allowance for doubtful other receivables due to an entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible and not separately disclosed. No definition available.
|
| X | ||||||||||
|
- Definition
Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Consolidated Statement of Common Shareholders' Equity (USD $)
In Millions, except Share data |
Total
|
CECONY [Member]
|
Common Stock [Member]
|
Common Stock [Member]
CECONY [Member]
|
Additional Paid-In Capital [Member]
|
Additional Paid-In Capital [Member]
CECONY [Member]
|
Retained Earnings [Member]
|
Retained Earnings [Member]
CECONY [Member]
|
Treasury Stock [Member]
|
Capital Stock Expense [Member]
|
Capital Stock Expense [Member]
CECONY [Member]
|
Accumulated Other Comprehensive Income/(Loss) [Member]
|
Accumulated Other Comprehensive Income/(Loss) [Member]
CECONY [Member]
|
Noncontrolling Interest [Member]
|
Repurchased Con Edison Stock [Member]
CECONY [Member]
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BALANCE at Dec. 31, 2011 | $ 10,218 | $ 589 | $ 4,234 | $ 6,429 | $ (64) | $ (8) | $ (962) | ||||||||
| BALANCE at Dec. 31, 2011 | 11,436 | 32 | 4,991 | 7,568 | (1,033) | (64) | (58) | ||||||||
| BALANCE (in shares) at Dec. 31, 2011 | 292,888,521 | 235,488,094 | 23,194,075 | ||||||||||||
| Net income for common stock | 1,138 | 1,014 | 1,138 | ||||||||||||
| NET INCOME | 1,141 | 1,017 | 1,017 | ||||||||||||
| Common stock dividends | (709) | (682) | (709) | (682) | |||||||||||
| Issuance of common shares for stock plans, net of repurchases | (1) | (4) | 3 | ||||||||||||
| Cumulative preferred dividends | (3) | (3) | (3) | ||||||||||||
| Issuance of common shares for stock plans, net of repurchases (in shares) | (16,625) | 16,625 | |||||||||||||
| Preferred stock redemption | 3 | 3 | |||||||||||||
| Other comprehensive income | 5 | (1) | 5 | (1) | |||||||||||
| BALANCE at Dec. 31, 2012 | 11,869 | 32 | 4,991 | 7,997 | (1,037) | (61) | (53) | 0 | |||||||
| BALANCE at Dec. 31, 2012 | 10,552 | 589 | 4,234 | 6,761 | (61) | (9) | (962) | ||||||||
| BALANCE (in shares) at Dec. 31, 2012 | 292,871,896 | 235,488,094 | 23,210,700 | ||||||||||||
| Net income for common stock | 1,062 | 1,020 | 1,062 | ||||||||||||
| NET INCOME | 1,062 | 1,020 | 1,020 | ||||||||||||
| Common stock dividends | (721) | (728) | (721) | (728) | |||||||||||
| Issuance of common shares for stock plans, net of repurchases | 7 | 4 | 3 | ||||||||||||
| Issuance of common shares for stock plans, net of repurchases (in shares) | 500 | (500) | |||||||||||||
| Other comprehensive income | 28 | 3 | 28 | 3 | |||||||||||
| BALANCE at Dec. 31, 2013 | 12,245 | 32 | 4,995 | 8,338 | (1,034) | (61) | (25) | 0 | |||||||
| BALANCE at Dec. 31, 2013 | 12,245 | 10,847 | 589 | 4,234 | 7,053 | (61) | (6) | (962) | |||||||
| BALANCE (in shares) at Dec. 31, 2013 | 292,872,396 | 235,488,094 | 292,872,396 | 235,488,094 | 23,210,200 | ||||||||||
| Net income for common stock | 1,092 | 1,058 | 1,092 | ||||||||||||
| NET INCOME | 1,092 | 1,058 | 1,058 | ||||||||||||
| Common stock dividends | (739) | (712) | (739) | (712) | |||||||||||
| Issuance of common shares for stock plans, net of repurchases | (2) | (4) | 2 | ||||||||||||
| Issuance of common shares for stock plans, net of repurchases (in shares) | 3,800 | (3,800) | |||||||||||||
| Other comprehensive income | (20) | (5) | (20) | (5) | |||||||||||
| Noncontrolling interest | 9 | 9 | |||||||||||||
| BALANCE at Dec. 31, 2014 | 12,585 | 32 | 4,991 | 8,691 | (1,032) | (61) | (45) | 9 | |||||||
| BALANCE at Dec. 31, 2014 | $ 12,576 | $ 11,188 | $ 589 | $ 4,234 | $ 7,399 | $ (61) | $ (11) | $ (962) | |||||||
| BALANCE (in shares) at Dec. 31, 2014 | 292,876,196 | 235,488,094 | 292,876,196 | 235,488,094 | 23,206,400 |
| X | ||||||||||
|
- Definition
Common Stock Equity Shares No definition available.
|
| X | ||||||||||
|
- Definition
Preferred stock redemption. No definition available.
|
| X | ||||||||||
|
- Definition
Stock Issued During Period, Shares, Dividend reinvestment and Employee Stock Purchase Plan No definition available.
|
| X | ||||||||||
|
- Definition
Value of stock issued as a result of dividend reinvestment and employee stock purchase plan recorded above par value. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before tax, after reclassification adjustments of other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Schedule of Capitalization - Equity (USD $)
In Millions, except Share data, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Schedule of Capitalization, Equity [Line Items] | ||
| TOTAL COMMON SHAREHOLDERS' EQUITY BEFORE ACCUMULATED OTHER COMPREHENSIVE LOSS | $ 12,621 | $ 12,270 |
| TOTAL COMMON SHAREHOLDERS' EQUITY BEFORE ACCUMULATED OTHER COMPREHENSIVE LOSS (in shares) | 292,876,196 | 292,872,396 |
| Pension plan liability adjustments, net of taxes | (42) | (22) |
| Unrealized gains/(losses) on derivatives qualified as cash flow hedges, less reclassification adjustment for gains/(losses) included in net income and reclassification adjustment | (3) | (3) |
| TOTAL ACCUMULATED OTHER COMPREHENSIVE LOSS, NET OF TAXES | (45) | (25) |
| Common Shareholders' Equity | 12,576 | 12,245 |
| Noncontrolling interest | 9 | |
| TOTAL EQUITY (See Statement of Equity) | 12,585 | 12,245 |
|
CECONY [Member]
|
||
| Schedule of Capitalization, Equity [Line Items] | ||
| TOTAL COMMON SHAREHOLDERS' EQUITY BEFORE ACCUMULATED OTHER COMPREHENSIVE LOSS | 11,199 | 10,853 |
| TOTAL COMMON SHAREHOLDERS' EQUITY BEFORE ACCUMULATED OTHER COMPREHENSIVE LOSS (in shares) | 235,488,094 | 235,488,094 |
| Pension plan liability adjustments, net of taxes | (8) | (3) |
| Unrealized gains/(losses) on derivatives qualified as cash flow hedges, less reclassification adjustment for gains/(losses) included in net income and reclassification adjustment | (3) | (3) |
| TOTAL ACCUMULATED OTHER COMPREHENSIVE LOSS, NET OF TAXES | (11) | (6) |
| Common Shareholders' Equity | 11,188 | 10,847 |
| TOTAL COMMON SHAREHOLDER'S EQUITY (See Statement of Shareholder's Equity) | $ 11,188 | $ 10,847 |
| X | ||||||||||
|
- Definition
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax And Reclassification Adjustment No definition available.
|
| X | ||||||||||
|
- Definition
Total value of common stock equity No definition available.
|
| X | ||||||||||
|
- Definition
Common stock equity before accumulated comprehensive income loss. No definition available.
|
| X | ||||||||||
|
- Definition
Common Stock Equity Shares No definition available.
|
| X | ||||||||||
|
- Definition
The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Statement of Capitalization - Long-term Debt (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| TOTAL DEBENTURES | $ 10,685 | $ 9,310 | ||||||
| TOTAL TRANSITION BONDS | 18 | 22 | ||||||
| TOTAL TAX-EXEMPT DEBT | 1,130 | 1,130 | ||||||
| Other long-term debt | 380 | 532 | ||||||
| Unamortized debt discount | (22) | (20) | ||||||
| TOTAL | 12,191 | 10,974 | ||||||
| Less: Long-term debt due within one year | 560 | 485 | ||||||
| TOTAL LONG-TERM DEBT | 11,631 | 10,489 | ||||||
| TOTAL | 12,191 | 10,974 | ||||||
| TOTAL CAPITALIZATION | 24,207 | 22,734 | ||||||
|
CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| TOTAL DEBENTURES | 10,150 | 8,775 | ||||||
| TOTAL TAX-EXEMPT DEBT | 1,086 | [1] | 1,086 | [1] | ||||
| Unamortized debt discount | (22) | [1] | (20) | [1] | ||||
| TOTAL | 11,214 | [1] | 9,841 | [1] | ||||
| Less: Long-term debt due within one year | 350 | [1] | 475 | [1] | ||||
| TOTAL LONG-TERM DEBT | 10,864 | [1] | 9,366 | [1] | ||||
| TOTAL | 11,214 | [1] | 9,841 | [1] | ||||
| TOTAL CAPITALIZATION | 22,052 | [1] | 20,213 | [1] | ||||
|
Debenture Series 2004A, 4.70% Due 2014 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 200 | |||||||
| Interest Rate | 4.70% | |||||||
| Maturity Date | 2014 | |||||||
|
Debenture Series 2004A, 4.70% Due 2014 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 200 | |||||||
| Interest Rate | 4.70% | |||||||
| Maturity Date | 2014 | |||||||
|
Debenture Series 2009A, 5.55% Due 2014 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 275 | |||||||
| Interest Rate | 5.55% | |||||||
| Maturity Date | 2014 | |||||||
|
Debenture Series 2009A, 5.55% Due 2014 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 275 | |||||||
| Interest Rate | 5.55% | |||||||
| Maturity Date | 2014 | |||||||
|
Debenture Series 2005A, 5.30% Due 2015 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 40 | 40 | ||||||
| Interest Rate | 5.30% | |||||||
| Maturity Date | 2015 | |||||||
|
Debenture Series 2005C, 5.375% Due 2015 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 350 | 350 | ||||||
| Interest Rate | 5.375% | |||||||
| Maturity Date | 2015 | |||||||
|
Debenture Series 2005C, 5.375% Due 2015 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 350 | 350 | ||||||
| Interest Rate | 5.375% | |||||||
| Maturity Date | 2015 | |||||||
|
Debenture Series 2010A, 2.50% Due 2015 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 55 | 55 | ||||||
| Interest Rate | 2.50% | |||||||
| Maturity Date | 2015 | |||||||
|
Debenture Series 2006A, 5.45% Due 2016 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 75 | 75 | ||||||
| Interest Rate | 5.45% | |||||||
| Maturity Date | 2016 | |||||||
|
Debenture Series 2006C, 5.50% Due 2016 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 400 | 400 | ||||||
| Interest Rate | 5.50% | |||||||
| Maturity Date | 2016 | |||||||
|
Debenture Series 2006C, 5.50% Due 2016 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 400 | 400 | ||||||
| Interest Rate | 5.50% | |||||||
| Maturity Date | 2016 | |||||||
|
Debenture Series 2006D, 5.30% Due 2016 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 250 | 250 | ||||||
| Interest Rate | 5.30% | |||||||
| Maturity Date | 2016 | |||||||
|
Debenture Series 2006D, 5.30% Due 2016 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 250 | 250 | ||||||
| Interest Rate | 5.30% | |||||||
| Maturity Date | 2016 | |||||||
|
Debenture Series 2008A, 5.85% Due 2018 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 600 | 600 | ||||||
| Interest Rate | 5.85% | |||||||
| Maturity Date | 2018 | |||||||
|
Debenture Series 2008A, 5.85% Due 2018 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 600 | 600 | ||||||
| Interest Rate | 5.85% | |||||||
| Maturity Date | 2018 | |||||||
|
Debenture Series 2008A, 6.15% Due 2018 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 50 | 50 | ||||||
| Interest Rate | 6.15% | |||||||
| Maturity Date | 2018 | |||||||
|
Debenture Series 2008C, 7.125% Due 2018 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 600 | 600 | ||||||
| Interest Rate | 7.125% | |||||||
| Maturity Date | 2018 | |||||||
|
Debenture Series 2008C, 7.125% Due 2018 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 600 | 600 | ||||||
| Interest Rate | 7.125% | |||||||
| Maturity Date | 2018 | |||||||
|
Debenture Series 2009A, 4.96% Due 2019 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 60 | 60 | ||||||
| Interest Rate | 4.96% | |||||||
| Maturity Date | 2019 | |||||||
|
Debenture Series 2009B, 6.65% Due 2019 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 475 | 475 | ||||||
| Interest Rate | 6.65% | |||||||
| Maturity Date | 2019 | |||||||
|
Debenture Series 2009B, 6.65% Due 2019 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 475 | 475 | ||||||
| Interest Rate | 6.65% | |||||||
| Maturity Date | 2019 | |||||||
|
Debenture Series 2010A, 4.45% Due 2020 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 350 | 350 | ||||||
| Interest Rate | 4.45% | |||||||
| Maturity Date | 2020 | |||||||
|
Debenture Series 2010A, 4.45% Due 2020 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 350 | 350 | ||||||
| Interest Rate | 4.45% | |||||||
| Maturity Date | 2020 | |||||||
|
Debenture Series 2014B, 3.30% Due 2024 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 250 | |||||||
| Interest Rate | 3.30% | |||||||
| Maturity Date | 2024 | |||||||
|
Debenture Series 2014B, 3.30% Due 2024 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 250 | |||||||
| Interest Rate | 3.30% | |||||||
| Maturity Date | 2024 | |||||||
|
Debenture Series 1997F, 6.50% Due 2027 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 80 | 80 | ||||||
| Interest Rate | 6.50% | |||||||
| Maturity Date | 2027 | |||||||
|
Debenture Series 2003A, 5.875% Due 2033 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 175 | 175 | ||||||
| Interest Rate | 5.875% | |||||||
| Maturity Date | 2033 | |||||||
|
Debenture Series 2003A, 5.875% Due 2033 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 175 | 175 | ||||||
| Interest Rate | 5.875% | |||||||
| Maturity Date | 2033 | |||||||
|
Debenture Series 2003C, 5.10% Due 2033 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 200 | 200 | ||||||
| Interest Rate | 5.10% | |||||||
| Maturity Date | 2033 | |||||||
|
Debenture Series 2003C, 5.10% Due 2033 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 200 | 200 | ||||||
| Interest Rate | 5.10% | |||||||
| Maturity Date | 2033 | |||||||
|
Debenture Series 2004B, 5.70% Due 2034 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 200 | 200 | ||||||
| Interest Rate | 5.70% | |||||||
| Maturity Date | 2034 | |||||||
|
Debenture Series 2004B, 5.70% Due 2034 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 200 | 200 | ||||||
| Interest Rate | 5.70% | |||||||
| Maturity Date | 2034 | |||||||
|
Debenture Series 2005A, 5.30% Due 2035 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 350 | 350 | ||||||
| Interest Rate | 5.30% | |||||||
| Maturity Date | 2035 | |||||||
|
Debenture Series 2005A, 5.30% Due 2035 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 350 | 350 | ||||||
| Interest Rate | 5.30% | |||||||
| Maturity Date | 2035 | |||||||
|
Debenture Series 2005B, 5.25% Due 2035 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 125 | 125 | ||||||
| Interest Rate | 5.25% | |||||||
| Maturity Date | 2035 | |||||||
|
Debenture Series 2005B, 5.25% Due 2035 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 125 | 125 | ||||||
| Interest Rate | 5.25% | |||||||
| Maturity Date | 2035 | |||||||
|
Debenture Series 2006A, 5.85% Due 2036 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 400 | 400 | ||||||
| Interest Rate | 5.85% | |||||||
| Maturity Date | 2036 | |||||||
|
Debenture Series 2006A, 5.85% Due 2036 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 400 | 400 | ||||||
| Interest Rate | 5.85% | |||||||
| Maturity Date | 2036 | |||||||
|
Debenture Series 2006B, 6.20% Due 2036 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 400 | 400 | ||||||
| Interest Rate | 6.20% | |||||||
| Maturity Date | 2036 | |||||||
|
Debenture Series 2006B, 6.20% Due 2036 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 400 | 400 | ||||||
| Interest Rate | 6.20% | |||||||
| Maturity Date | 2036 | |||||||
|
Debenture Series 2006E, 5.70% Due 2036 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 250 | 250 | ||||||
| Interest Rate | 5.70% | |||||||
| Maturity Date | 2036 | |||||||
|
Debenture Series 2006E, 5.70% Due 2036 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 250 | 250 | ||||||
| Interest Rate | 5.70% | |||||||
| Maturity Date | 2036 | |||||||
|
Debenture Series 2007A, 6.30% Due 2037 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 525 | 525 | ||||||
| Interest Rate | 6.30% | |||||||
| Maturity Date | 2037 | |||||||
|
Debenture Series 2007A, 6.30% Due 2037 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 525 | 525 | ||||||
| Interest Rate | 6.30% | |||||||
| Maturity Date | 2037 | |||||||
|
Debenture Series 2008B, 6.75% Due 2038 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 600 | 600 | ||||||
| Interest Rate | 6.75% | |||||||
| Maturity Date | 2038 | |||||||
|
Debenture Series 2008B, 6.75% Due 2038 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 600 | 600 | ||||||
| Interest Rate | 6.75% | |||||||
| Maturity Date | 2038 | |||||||
|
Debenture Series 2009B, 6.00% Due 2039 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 60 | 60 | ||||||
| Interest Rate | 6.00% | |||||||
| Maturity Date | 2039 | |||||||
|
Debenture Series 2009C, 5.50% Due 2039 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 600 | 600 | ||||||
| Interest Rate | 5.50% | |||||||
| Maturity Date | 2039 | |||||||
|
Debenture Series 2009C, 5.50% Due 2039 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 600 | 600 | ||||||
| Interest Rate | 5.50% | |||||||
| Maturity Date | 2039 | |||||||
|
Debenture Series 2010B, 5.70% Due 2040 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 350 | 350 | ||||||
| Interest Rate | 5.70% | |||||||
| Maturity Date | 2040 | |||||||
|
Debenture Series 2010B, 5.70% Due 2040 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 350 | 350 | ||||||
| Interest Rate | 5.70% | |||||||
| Maturity Date | 2040 | |||||||
|
Debenture Series 2010B, 5.50% Due 2040 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 115 | 115 | ||||||
| Interest Rate | 5.50% | |||||||
| Maturity Date | 2040 | |||||||
|
Debenture Series 2012A, 4.20% Due 2042 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 400 | 400 | ||||||
| Interest Rate | 4.20% | |||||||
| Maturity Date | 2042 | |||||||
|
Debenture Series 2012A, 4.20% Due 2042 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 400 | 400 | ||||||
| Interest Rate | 4.20% | |||||||
| Maturity Date | 2042 | |||||||
|
Debenture Series Two Thousand Thirteena Three Point Nine Five Percent Due Two Thousand Forty Three [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 700 | 700 | ||||||
| Interest Rate | 3.95% | |||||||
| Maturity Date | 2043 | |||||||
|
Debenture Series Two Thousand Thirteena Three Point Nine Five Percent Due Two Thousand Forty Three [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 700 | 700 | ||||||
| Interest Rate | 3.95% | |||||||
| Maturity Date | 2043 | |||||||
|
Debenture Series 2014A, 4.45% Due 2044 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 850 | |||||||
| Interest Rate | 4.45% | |||||||
| Maturity Date | 2044 | |||||||
|
Debenture Series 2014A, 4.45% Due 2044 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 850 | |||||||
| Interest Rate | 4.45% | |||||||
| Maturity Date | 2044 | |||||||
|
Debenture Series 2014C, 4.625% Due 2054 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 750 | |||||||
| Interest Rate | 4.625% | |||||||
| Maturity Date | 2054 | |||||||
|
Debenture Series 2014C, 4.625% Due 2054 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 750 | |||||||
| Interest Rate | 4.625% | |||||||
| Maturity Date | 2054 | |||||||
|
Debenture Series 2004-1, 5.22% Due 2019 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 18 | [2] | 22 | [2] | ||||
| Interest Rate | 5.22% | [2] | ||||||
| Maturity Date | 2019 | [2] | ||||||
|
Debenture Series 1995, 0.06% Due 2015 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 44 | [1] | 44 | [1] | ||||
| Interest Rate | 0.06% | [1] | ||||||
| Maturity Date | 2015 | [1] | ||||||
|
Tax Exempt Debt Series 2004B-1, 0.13% Due 2032 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 127 | [1] | 127 | [1] | ||||
| Interest Rate | 0.13% | [1] | ||||||
| Maturity Date | 2032 | [1] | ||||||
|
Tax Exempt Debt Series 2004B-1, 0.13% Due 2032 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 127 | [1] | 127 | [1] | ||||
| Interest Rate | 0.13% | [1] | ||||||
| Maturity Date | 2032 | [1] | ||||||
|
Tax-Exempt Debt Series 1999A, 0.14% Due 2034 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 293 | [1] | 293 | [1] | ||||
| Interest Rate | 0.14% | [1] | ||||||
| Maturity Date | 2034 | [1] | ||||||
|
Tax-Exempt Debt Series 1999A, 0.14% Due 2034 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 293 | [1] | 293 | [1] | ||||
| Interest Rate | 0.14% | [1] | ||||||
| Maturity Date | 2034 | [1] | ||||||
|
Tax Exempt Debt Series 2004B-2, 0.14% Due 2035 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 20 | [1] | 20 | [1] | ||||
| Interest Rate | 0.14% | [1] | ||||||
| Maturity Date | 2035 | [1] | ||||||
|
Tax Exempt Debt Series 2004B-2, 0.14% Due 2035 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 20 | [1] | 20 | [1] | ||||
| Interest Rate | 0.14% | [1] | ||||||
| Maturity Date | 2035 | [1] | ||||||
|
Tax-Exempt Debt Series 2001B, 0.11% Due 2036 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 98 | [1] | 98 | [1] | ||||
| Interest Rate | 0.11% | [1] | ||||||
| Maturity Date | 2036 | [1] | ||||||
|
Tax-Exempt Debt Series 2001B, 0.11% Due 2036 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 98 | [1] | 98 | [1] | ||||
| Interest Rate | 0.11% | [1] | ||||||
| Maturity Date | 2036 | [1] | ||||||
|
Tax-Exempt Debt Series 2010A, 0.03% Due 2036 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 225 | [1] | 225 | [1] | ||||
| Interest Rate | 0.03% | [1] | ||||||
| Maturity Date | 2036 | [1] | ||||||
|
Tax-Exempt Debt Series 2010A, 0.03% Due 2036 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 225 | [1] | 225 | [1] | ||||
| Interest Rate | 0.03% | [1] | ||||||
| Maturity Date | 2036 | [1] | ||||||
|
Tax-Exempt Debt Series 2004A, 0.10% Due 2039 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 98 | [1] | 98 | [1] | ||||
| Interest Rate | 0.10% | [1] | ||||||
| Maturity Date | 2039 | [1] | ||||||
|
Tax-Exempt Debt Series 2004A, 0.10% Due 2039 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 98 | [1] | 98 | [1] | ||||
| Interest Rate | 0.10% | [1] | ||||||
| Maturity Date | 2039 | [1] | ||||||
|
Tax-Exempt Debt Series 2004C, 0.04% Due 2039 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 99 | [1] | 99 | [1] | ||||
| Interest Rate | 0.04% | [1] | ||||||
| Maturity Date | 2039 | [1] | ||||||
|
Tax-Exempt Debt Series 2004C, 0.04% Due 2039 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 99 | [1] | 99 | [1] | ||||
| Interest Rate | 0.04% | [1] | ||||||
| Maturity Date | 2039 | [1] | ||||||
|
Tax-Exempt Debt Series 2005A, 0.03% Due 2039 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 126 | [1] | 126 | [1] | ||||
| Interest Rate | 0.03% | [1] | ||||||
| Maturity Date | 2039 | [1] | ||||||
|
Tax-Exempt Debt Series 2005A, 0.03% Due 2039 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | $ 126 | [1] | $ 126 | [1] | ||||
| Interest Rate | 0.03% | [1] | ||||||
| Maturity Date | 2039 | [1] | ||||||
|
||||||||
| X | ||||||||||
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- Definition
Debentures, Total No definition available.
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| X | ||||||||||
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- Definition
Tax-Exempt Debt, Total No definition available.
|
| X | ||||||||||
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- Definition
This element represents the total consolidated (as applicable) capitalization of the entity which is comprised of its long-term debt and equity instruments. The table may be detailed by subsidiary (legal entity) and include information by type of debt or equity detailed by instrument. No definition available.
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| X | ||||||||||
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- Definition
Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Long-Term transition bonds are bonds under the Competition Act in which the proceeds of Transition Bonds are required to be used principally to reduce qualified stranded costs and the related capitalization of the utility. This represents the current and noncurrent portions. The initial maturity is beyond one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Including both current and noncurrent portions, carrying amount as of the balance sheet date of other forms of debt not elsewhere specified in the taxonomy with initial maturities beyond one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
|
|
General
|
12 Months Ended |
|---|---|
|
Dec. 31, 2014
|
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| General | General These combined notes accompany and form an integral part of the separate consolidated financial statements of each of the two separate registrants: Consolidated Edison, Inc. and its subsidiaries (Con Edison) and Consolidated Edison Company of New York, Inc. and its subsidiaries (CECONY). CECONY is a subsidiary of Con Edison and as such its financial condition and results of operations and cash flows, which are presented separately in the CECONY consolidated financial statements, are also consolidated, along with those of Con Edison’s other utility subsidiary, Orange and Rockland Utilities, Inc. (O&R), and Con Edison’s competitive energy businesses (discussed below) in Con Edison’s consolidated financial statements. The term “Utilities” is used in these notes to refer to CECONY and O&R. As used in these notes, the term “Companies” refers to Con Edison and CECONY and, except as otherwise noted, the information in these combined notes relates to each of the Companies. However, CECONY makes no representation as to information relating to Con Edison or the subsidiaries of Con Edison other than itself. Con Edison has two regulated utility subsidiaries: CECONY and O&R. CECONY provides electric service and gas service in New York City and Westchester County. The company also provides steam service in parts of Manhattan. O&R, along with its regulated utility subsidiaries, provides electric service in southeastern New York and adjacent areas of northern New Jersey and eastern Pennsylvania and gas service in southeastern New York and adjacent areas of eastern Pennsylvania. Con Edison has the following competitive energy businesses: Consolidated Edison Solutions, Inc. (Con Edison Solutions), a company which sells to retail customers electricity purchased in wholesale markets and enters into related hedging transactions and also provides energy-related products and services to retail customers; Consolidated Edison Energy, Inc. (Con Edison Energy), a company that provides energy-related products and services to wholesale customers; and Consolidated Edison Development, Inc. (Con Edison Development), a company that develops, owns and operates renewable and energy infrastructure projects. In addition, in 2014 Con Edison formed Consolidated Edison Transmission LLC (Con Edison Transmission) to invest in a transmission company. See information about Con Edison Transmission under “Guarantees” in Note H. |
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CECONY [Member]
|
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| General | General These combined notes accompany and form an integral part of the separate consolidated financial statements of each of the two separate registrants: Consolidated Edison, Inc. and its subsidiaries (Con Edison) and Consolidated Edison Company of New York, Inc. and its subsidiaries (CECONY). CECONY is a subsidiary of Con Edison and as such its financial condition and results of operations and cash flows, which are presented separately in the CECONY consolidated financial statements, are also consolidated, along with those of Con Edison’s other utility subsidiary, Orange and Rockland Utilities, Inc. (O&R), and Con Edison’s competitive energy businesses (discussed below) in Con Edison’s consolidated financial statements. The term “Utilities” is used in these notes to refer to CECONY and O&R. As used in these notes, the term “Companies” refers to Con Edison and CECONY and, except as otherwise noted, the information in these combined notes relates to each of the Companies. However, CECONY makes no representation as to information relating to Con Edison or the subsidiaries of Con Edison other than itself. Con Edison has two regulated utility subsidiaries: CECONY and O&R. CECONY provides electric service and gas service in New York City and Westchester County. The company also provides steam service in parts of Manhattan. O&R, along with its regulated utility subsidiaries, provides electric service in southeastern New York and adjacent areas of northern New Jersey and eastern Pennsylvania and gas service in southeastern New York and adjacent areas of eastern Pennsylvania. Con Edison has the following competitive energy businesses: Consolidated Edison Solutions, Inc. (Con Edison Solutions), a company which sells to retail customers electricity purchased in wholesale markets and enters into related hedging transactions and also provides energy-related products and services to retail customers; Consolidated Edison Energy, Inc. (Con Edison Energy), a company that provides energy-related products and services to wholesale customers; and Consolidated Edison Development, Inc. (Con Edison Development), a company that develops, owns and operates renewable and energy infrastructure projects. In addition, in 2014 Con Edison formed Consolidated Edison Transmission LLC (Con Edison Transmission) to invest in a transmission company. See information about Con Edison Transmission under “Guarantees” in Note H. |
| X | ||||||||||
|
- Definition
The entire disclosure for the business description and basis of presentation concepts. Business description describes the nature and type of organization including but not limited to organizational structure as may be applicable to holding companies, parent and subsidiary relationships, business divisions, business units, business segments, affiliates and information about significant ownership of the reporting entity. Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). No definition available.
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|
Summary of Significant Accounting Policies
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2014
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| Summary of Significant Accounting Policies | Note A – Summary of Significant Accounting Policies Principles of Consolidation The Companies’ consolidated financial statements include the accounts of their respective majority-owned subsidiaries, and variable interest entities (see Note Q), as required. All intercompany balances and transactions have been eliminated. Accounting Policies The accounting policies of Con Edison and its subsidiaries conform to generally accepted accounting principles in the United States of America (GAAP). For the Utilities, these accounting principles include the accounting rules for regulated operations and the accounting requirements of the Federal Energy Regulatory Commission (FERC) and the state regulators having jurisdiction. The accounting rules for regulated operations specify the economic effects that result from the causal relationship of costs and revenues in the rate-regulated environment and how these effects are to be accounted for by a regulated enterprise. Revenues intended to cover some costs may be recorded either before or after the costs are incurred. If regulation provides assurance that incurred costs will be recovered in the future, these costs would be recorded as deferred charges or “regulatory assets” under the accounting rules for regulated operations. If revenues are recorded for costs that are expected to be incurred in the future, these revenues would be recorded as deferred credits or “regulatory liabilities” under the accounting rules for regulated operations. The Utilities’ principal regulatory assets and liabilities are detailed in Note B. The Utilities are receiving or being credited with a return on all of their regulatory assets for which a cash outflow has been made, and are paying or being charged with a return on all of their regulatory liabilities for which a cash inflow has been received. The Utilities’ regulatory assets and liabilities will be recovered from customers, or applied for customer benefit, in accordance with rate provisions approved by the applicable state regulators. Other significant accounting policies of the Companies are referenced below in this Note A and in the notes that follow. Plant and Depreciation Utility Plant Utility plant is stated at original cost. The cost of repairs and maintenance is charged to expense and the cost of betterments is capitalized. The capitalized cost of additions to utility plant includes indirect costs such as engineering, supervision, payroll taxes, pensions, other benefits and an allowance for funds used during construction (AFUDC). The original cost of property is charged to expense over the estimated useful lives of the assets. Upon retirement, the original cost of property is charged to accumulated depreciation. See Note R. Rates used for AFUDC include the cost of borrowed funds and a reasonable rate of return on the Utilities’ own funds when so used, determined in accordance with regulations of the FERC or the state public utility regulatory authority having jurisdiction. The rate is compounded semiannually, and the amounts applicable to borrowed funds are treated as a reduction of interest charges, while the amounts applicable to the Utilities’ own funds are credited to other income (deductions). The AFUDC rates for CECONY were 1.6 percent, 4.0 percent and 6.5 percent for 2014, 2013 and 2012, respectively. The AFUDC rates for O&R were 2.6 percent, 5.7 percent and 7.0 percent for 2014, 2013 and 2012, respectively. The Utilities generally compute annual charges for depreciation using the straight-line method for financial statement purposes, with rates based on average service lives and net salvage factors. The average depreciation rates for CECONY were 3.1 percent, 3.2 percent and 3.1 percent for 2014, 2013 and 2012, respectively. The average depreciation rates for O&R were 2.9 percent, 2.8 percent and 2.9 percent for 2014, 2013 and 2012, respectively. The estimated lives for utility plant for CECONY range from 5 to 85 years for electric and gas, 5 to 80 years for steam and 5 to 55 years for general plant. For O&R, the estimated lives for utility plant range from 5 to 75 years for electric and gas and 5 to 50 years for general plant. At December 31, 2014 and 2013, the capitalized cost of the Companies’ utility plant, net of accumulated depreciation, was as follows:
Under the Utilities’ rate plans, the aggregate annual depreciation allowance in effect at December 31, 2014 was $1,048 million, including $993 million under CECONY’s electric, gas and steam rate plans that have been approved by the New York State Public Service Commission (NYSPSC). Non-Utility Plant Non-utility plant is stated at original cost. For Con Edison, non-utility plant consists primarily of the competitive energy businesses’ renewable electric production and gas storage. For the Utilities, non-utility plant consists of land and conduit for telecommunication use. Depreciation on these assets is computed using the straight-line method for financial statement purposes over their estimated useful lives, which range from 3 to 30 years. Goodwill Con Edison tests goodwill for impairment at least annually. Goodwill is tested for impairment using a two-step approach. The first step of the goodwill impairment test compares the estimated fair value of a reporting unit with its carrying value, including goodwill. If the estimated fair value of a reporting unit exceeds its carrying value, goodwill of the reporting unit is considered not impaired. If the carrying value exceeds the estimated fair value of the reporting unit, the second step is performed to measure the amount of impairment loss, if any. The second step requires a calculation of the implied fair value of goodwill. See Note K. Impairments Con Edison evaluates the impairment of long-lived assets, based on projections of undiscounted future cash flows, whenever events or changes in circumstances indicate that the carrying amounts of such assets may not be recoverable. In the event an evaluation indicates that such cash flows cannot be expected to be sufficient to fully recover the assets, the assets are written down to their estimated fair value. No impairment charges were recognized in 2014, 2013 or 2012. Revenues The Utilities and Con Edison Solutions recognize revenues for energy service on a monthly billing cycle basis. The Utilities defer over a 12-month period net interruptible gas revenues, other than those authorized by the NYSPSC to be retained by the Utilities, for refund to firm gas sales and transportation customers. The Utilities and Con Edison Solutions accrue revenues at the end of each month for estimated energy service not yet billed to customers. CECONY’s electric and gas rate plans and O&R’s New York electric and gas rate plans each contain a revenue decoupling mechanism under which the company’s actual energy delivery revenues are compared with the authorized delivery revenues and the difference accrued, with interest, for refund to, or recovery from, customers, as applicable. See “Rate Plans” in Note B. The NYSPSC requires utilities to record gross receipts tax revenues and expenses on a gross income statement presentation basis (i.e., included in both revenue and expense). The recovery of these taxes is generally provided for in the revenue requirement within each of the respective NYSPSC approved rate plans. Total excise taxes (inclusive of gross receipts taxes) recorded in operating revenues were as follows:
Recoverable Energy Costs The Utilities generally recover all of their prudently incurred fuel, purchased power and gas costs, including hedging gains and losses, in accordance with rate provisions approved by the applicable state public utility regulators. If the actual energy supply costs for a given month are more or less than the amounts billed to customers for that month, the difference in most cases is recoverable from or refundable to customers. Differences between actual and billed electric and steam supply costs and costs of its electric demand management programs are generally deferred for charge or refund to customers during the next billing cycle (normally within one or two months). For the Utilities’ gas costs, differences between actual and billed gas costs during the 12-month period ending each August are charged or refunded to customers during a subsequent 12-month period. New York Independent System Operator (NYISO) The Utilities purchase electricity through the wholesale electricity market administered by the NYISO. The difference between purchased power and related costs initially billed to the Utilities by the NYISO and the actual cost of power subsequently calculated by the NYISO is refunded by the NYISO to the Utilities, or paid to the NYISO by the Utilities. The reconciliation payments or receipts are recoverable from or refundable to the Utilities’ customers. Certain other payments to or receipts from the NYISO are also subject to reconciliation, with shortfalls or amounts in excess of specified rate allowances recoverable from or refundable to customers. These include proceeds from the sale through the NYISO of transmission rights on CECONY’s transmission system (transmission congestion contracts or TCCs). Temporary Cash Investments Temporary cash investments are short-term, highly-liquid investments that generally have maturities of three months or less at the date of purchase. They are stated at cost, which approximates market. The Companies consider temporary cash investments to be cash equivalents. Investments Investments consist primarily of the investments of Con Edison’s competitive energy businesses, which are accounted for under the equity method (depending on the subsidiaries’ percentage ownership). Utilities’ investments are recorded at fair value and include the investments of the deferred income plan and the supplemental retirement income plan in trust-owned life insurance assets. Pension and Other Postretirement Benefits The accounting rules for retirement benefits require an employer to recognize an asset or liability for the overfunded or underfunded status of its pension and other postretirement benefit plans. For a pension plan, the asset or liability is the difference between the fair value of the plan’s assets and the projected benefit obligation. For any other postretirement benefit plan, the asset or liability is the difference between the fair value of the plan’s assets and the accumulated postretirement benefit obligation. The accounting rules generally require employers to recognize all unrecognized prior service costs and credits and unrecognized actuarial gains and losses in accumulated other comprehensive income (OCI), net of tax. Such amounts will be adjusted as they are subsequently recognized as components of net periodic benefit cost or income pursuant to the current recognition and amortization provisions. For the Utilities’ pension and other postretirement benefit plans, regulatory accounting treatment is generally applied in accordance with the accounting rules for regulated operations. Unrecognized prior service costs or credits and unrecognized actuarial gains and losses are recorded to regulatory assets or liabilities, rather than OCI. See Notes E and F. The net periodic benefit costs are recognized in accordance with the accounting rules for retirement benefits. Investment gains and losses are recognized in expense over a 15-year period and other actuarial gains and losses are recognized in expense over a 10-year period, subject to the deferral provisions in the rate plans. In accordance with the Statement of Policy issued by the NYSPSC and its current electric, gas and steam rate plans, CECONY defers for payment to or recovery from customers the difference between such expenses and the amounts for such expenses reflected in rates. Generally, O&R also defers such difference pursuant to its rate plans. See Note B – Regulatory Matters.
The Companies calculate the expected return on pension and other postretirement benefit plan assets by multiplying the expected rate of return on plan assets by the market-related value (MRV) of plan assets at the beginning of the year, taking into consideration anticipated contributions and benefit payments that are to be made during the year. The accounting rules allow the MRV of plan assets to be either fair value or a calculated value that recognizes changes in fair value in a systematic and rational manner over not more than five years. The Companies use a calculated value when determining the MRV of the plan assets that adjusts for 20 percent of the difference between fair value and expected MRV of plan assets. This calculated value has the effect of stabilizing variability in assets to which the Companies apply the expected return. Federal Income Tax In accordance with the accounting rules for income taxes, the Companies have recorded an accumulated deferred federal income tax liability for temporary differences between the book and tax basis of assets and liabilities at current tax rates. In accordance with rate plans, the Utilities have recovered amounts from customers for a portion of the tax liability they will pay in the future as a result of the reversal or “turn-around” of these temporary differences. As to the remaining tax liability, in accordance with the accounting rules for regulated operations, the Utilities have established regulatory assets for the net revenue requirements to be recovered from customers for the related future tax expense. See Notes B and L. In 1993, the NYSPSC issued a Policy Statement approving accounting procedures consistent with the accounting rules for income taxes and providing assurances that these future increases in taxes will be recoverable in rates. See Note L. Accumulated deferred investment tax credits are amortized ratably over the lives of the related properties and applied as a reduction to future federal income tax expense. Con Edison and its subsidiaries file a consolidated federal income tax return. The consolidated income tax liability is allocated to each member of the consolidated group using the separate return method. Each member pays or receives an amount based on its own taxable income or loss in accordance with tax sharing agreements among the members of the consolidated group. Tax loss carryforwards are allocated among members in accordance with consolidated tax return regulations. State Income Tax Con Edison and its subsidiaries file a combined New York State Corporation Business Franchise Tax Return. Similar to a federal consolidated income tax return, the income of all entities in the combined group is subject to New York State taxation, after adjustments for differences between federal and New York law and apportionment of income among the states in which the company does business. Each member’s share of the New York State tax is based on its own New York State taxable income or loss. Research and Development Costs Generally research and development costs are charged to operating expenses as incurred. Research and development costs were as follows:
Reclassification Certain prior year amounts have been reclassified to conform with the current year presentation. Earnings Per Common Share Con Edison presents basic and diluted earnings per share on the face of its consolidated income statement. Basic earnings per share (EPS) are calculated by dividing earnings available to common shareholders (“Net income for common stock” on Con Edison’s consolidated income statement) by the weighted average number of Con Edison common shares outstanding during the period. In the calculation of diluted EPS, weighted average shares outstanding are increased for additional shares that would be outstanding if potentially dilutive securities were converted to common stock. Potentially dilutive securities for Con Edison consist of restricted stock units, deferred stock units and stock options for which the average market price of the common shares for the period was greater than the exercise price. See Note M.
Basic and diluted EPS for Con Edison are calculated as follows:
The computation of diluted EPS for the years ended December 31, 2014, 2013 and 2012 exclude immaterial amounts of performance share awards that were not included because of their anti-dilutive effect. Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Changes in Accumulated Other Comprehensive Income by Component Changes to accumulated other comprehensive income (OCI) for Con Edison and CECONY are as follows:
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CECONY [Member]
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| Summary of Significant Accounting Policies | Note A – Summary of Significant Accounting Policies Principles of Consolidation The Companies’ consolidated financial statements include the accounts of their respective majority-owned subsidiaries, and variable interest entities (see Note Q), as required. All intercompany balances and transactions have been eliminated. Accounting Policies The accounting policies of Con Edison and its subsidiaries conform to generally accepted accounting principles in the United States of America (GAAP). For the Utilities, these accounting principles include the accounting rules for regulated operations and the accounting requirements of the Federal Energy Regulatory Commission (FERC) and the state regulators having jurisdiction. The accounting rules for regulated operations specify the economic effects that result from the causal relationship of costs and revenues in the rate-regulated environment and how these effects are to be accounted for by a regulated enterprise. Revenues intended to cover some costs may be recorded either before or after the costs are incurred. If regulation provides assurance that incurred costs will be recovered in the future, these costs would be recorded as deferred charges or “regulatory assets” under the accounting rules for regulated operations. If revenues are recorded for costs that are expected to be incurred in the future, these revenues would be recorded as deferred credits or “regulatory liabilities” under the accounting rules for regulated operations. The Utilities’ principal regulatory assets and liabilities are detailed in Note B. The Utilities are receiving or being credited with a return on all of their regulatory assets for which a cash outflow has been made, and are paying or being charged with a return on all of their regulatory liabilities for which a cash inflow has been received. The Utilities’ regulatory assets and liabilities will be recovered from customers, or applied for customer benefit, in accordance with rate provisions approved by the applicable state regulators. Other significant accounting policies of the Companies are referenced below in this Note A and in the notes that follow. Plant and Depreciation Utility Plant Utility plant is stated at original cost. The cost of repairs and maintenance is charged to expense and the cost of betterments is capitalized. The capitalized cost of additions to utility plant includes indirect costs such as engineering, supervision, payroll taxes, pensions, other benefits and an allowance for funds used during construction (AFUDC). The original cost of property is charged to expense over the estimated useful lives of the assets. Upon retirement, the original cost of property is charged to accumulated depreciation. See Note R. Rates used for AFUDC include the cost of borrowed funds and a reasonable rate of return on the Utilities’ own funds when so used, determined in accordance with regulations of the FERC or the state public utility regulatory authority having jurisdiction. The rate is compounded semiannually, and the amounts applicable to borrowed funds are treated as a reduction of interest charges, while the amounts applicable to the Utilities’ own funds are credited to other income (deductions). The AFUDC rates for CECONY were 1.6 percent, 4.0 percent and 6.5 percent for 2014, 2013 and 2012, respectively. The AFUDC rates for O&R were 2.6 percent, 5.7 percent and 7.0 percent for 2014, 2013 and 2012, respectively. The Utilities generally compute annual charges for depreciation using the straight-line method for financial statement purposes, with rates based on average service lives and net salvage factors. The average depreciation rates for CECONY were 3.1 percent, 3.2 percent and 3.1 percent for 2014, 2013 and 2012, respectively. The average depreciation rates for O&R were 2.9 percent, 2.8 percent and 2.9 percent for 2014, 2013 and 2012, respectively. The estimated lives for utility plant for CECONY range from 5 to 85 years for electric and gas, 5 to 80 years for steam and 5 to 55 years for general plant. For O&R, the estimated lives for utility plant range from 5 to 75 years for electric and gas and 5 to 50 years for general plant. At December 31, 2014 and 2013, the capitalized cost of the Companies’ utility plant, net of accumulated depreciation, was as follows:
Under the Utilities’ rate plans, the aggregate annual depreciation allowance in effect at December 31, 2014 was $1,048 million, including $993 million under CECONY’s electric, gas and steam rate plans that have been approved by the New York State Public Service Commission (NYSPSC). Non-Utility Plant Non-utility plant is stated at original cost. For Con Edison, non-utility plant consists primarily of the competitive energy businesses’ renewable electric production and gas storage. For the Utilities, non-utility plant consists of land and conduit for telecommunication use. Depreciation on these assets is computed using the straight-line method for financial statement purposes over their estimated useful lives, which range from 3 to 30 years. Goodwill Con Edison tests goodwill for impairment at least annually. Goodwill is tested for impairment using a two-step approach. The first step of the goodwill impairment test compares the estimated fair value of a reporting unit with its carrying value, including goodwill. If the estimated fair value of a reporting unit exceeds its carrying value, goodwill of the reporting unit is considered not impaired. If the carrying value exceeds the estimated fair value of the reporting unit, the second step is performed to measure the amount of impairment loss, if any. The second step requires a calculation of the implied fair value of goodwill. See Note K. Impairments Con Edison evaluates the impairment of long-lived assets, based on projections of undiscounted future cash flows, whenever events or changes in circumstances indicate that the carrying amounts of such assets may not be recoverable. In the event an evaluation indicates that such cash flows cannot be expected to be sufficient to fully recover the assets, the assets are written down to their estimated fair value. No impairment charges were recognized in 2014, 2013 or 2012. Revenues The Utilities and Con Edison Solutions recognize revenues for energy service on a monthly billing cycle basis. The Utilities defer over a 12-month period net interruptible gas revenues, other than those authorized by the NYSPSC to be retained by the Utilities, for refund to firm gas sales and transportation customers. The Utilities and Con Edison Solutions accrue revenues at the end of each month for estimated energy service not yet billed to customers. CECONY’s electric and gas rate plans and O&R’s New York electric and gas rate plans each contain a revenue decoupling mechanism under which the company’s actual energy delivery revenues are compared with the authorized delivery revenues and the difference accrued, with interest, for refund to, or recovery from, customers, as applicable. See “Rate Plans” in Note B. The NYSPSC requires utilities to record gross receipts tax revenues and expenses on a gross income statement presentation basis (i.e., included in both revenue and expense). The recovery of these taxes is generally provided for in the revenue requirement within each of the respective NYSPSC approved rate plans. Total excise taxes (inclusive of gross receipts taxes) recorded in operating revenues were as follows:
Recoverable Energy Costs The Utilities generally recover all of their prudently incurred fuel, purchased power and gas costs, including hedging gains and losses, in accordance with rate provisions approved by the applicable state public utility regulators. If the actual energy supply costs for a given month are more or less than the amounts billed to customers for that month, the difference in most cases is recoverable from or refundable to customers. Differences between actual and billed electric and steam supply costs and costs of its electric demand management programs are generally deferred for charge or refund to customers during the next billing cycle (normally within one or two months). For the Utilities’ gas costs, differences between actual and billed gas costs during the 12-month period ending each August are charged or refunded to customers during a subsequent 12-month period. New York Independent System Operator (NYISO) The Utilities purchase electricity through the wholesale electricity market administered by the NYISO. The difference between purchased power and related costs initially billed to the Utilities by the NYISO and the actual cost of power subsequently calculated by the NYISO is refunded by the NYISO to the Utilities, or paid to the NYISO by the Utilities. The reconciliation payments or receipts are recoverable from or refundable to the Utilities’ customers. Certain other payments to or receipts from the NYISO are also subject to reconciliation, with shortfalls or amounts in excess of specified rate allowances recoverable from or refundable to customers. These include proceeds from the sale through the NYISO of transmission rights on CECONY’s transmission system (transmission congestion contracts or TCCs). Temporary Cash Investments Temporary cash investments are short-term, highly-liquid investments that generally have maturities of three months or less at the date of purchase. They are stated at cost, which approximates market. The Companies consider temporary cash investments to be cash equivalents. Investments Investments consist primarily of the investments of Con Edison’s competitive energy businesses, which are accounted for under the equity method (depending on the subsidiaries’ percentage ownership). Utilities’ investments are recorded at fair value and include the investments of the deferred income plan and the supplemental retirement income plan in trust-owned life insurance assets. Pension and Other Postretirement Benefits The accounting rules for retirement benefits require an employer to recognize an asset or liability for the overfunded or underfunded status of its pension and other postretirement benefit plans. For a pension plan, the asset or liability is the difference between the fair value of the plan’s assets and the projected benefit obligation. For any other postretirement benefit plan, the asset or liability is the difference between the fair value of the plan’s assets and the accumulated postretirement benefit obligation. The accounting rules generally require employers to recognize all unrecognized prior service costs and credits and unrecognized actuarial gains and losses in accumulated other comprehensive income (OCI), net of tax. Such amounts will be adjusted as they are subsequently recognized as components of net periodic benefit cost or income pursuant to the current recognition and amortization provisions. For the Utilities’ pension and other postretirement benefit plans, regulatory accounting treatment is generally applied in accordance with the accounting rules for regulated operations. Unrecognized prior service costs or credits and unrecognized actuarial gains and losses are recorded to regulatory assets or liabilities, rather than OCI. See Notes E and F. The net periodic benefit costs are recognized in accordance with the accounting rules for retirement benefits. Investment gains and losses are recognized in expense over a 15-year period and other actuarial gains and losses are recognized in expense over a 10-year period, subject to the deferral provisions in the rate plans. In accordance with the Statement of Policy issued by the NYSPSC and its current electric, gas and steam rate plans, CECONY defers for payment to or recovery from customers the difference between such expenses and the amounts for such expenses reflected in rates. Generally, O&R also defers such difference pursuant to its rate plans. See Note B – Regulatory Matters.
The Companies calculate the expected return on pension and other postretirement benefit plan assets by multiplying the expected rate of return on plan assets by the market-related value (MRV) of plan assets at the beginning of the year, taking into consideration anticipated contributions and benefit payments that are to be made during the year. The accounting rules allow the MRV of plan assets to be either fair value or a calculated value that recognizes changes in fair value in a systematic and rational manner over not more than five years. The Companies use a calculated value when determining the MRV of the plan assets that adjusts for 20 percent of the difference between fair value and expected MRV of plan assets. This calculated value has the effect of stabilizing variability in assets to which the Companies apply the expected return. Federal Income Tax In accordance with the accounting rules for income taxes, the Companies have recorded an accumulated deferred federal income tax liability for temporary differences between the book and tax basis of assets and liabilities at current tax rates. In accordance with rate plans, the Utilities have recovered amounts from customers for a portion of the tax liability they will pay in the future as a result of the reversal or “turn-around” of these temporary differences. As to the remaining tax liability, in accordance with the accounting rules for regulated operations, the Utilities have established regulatory assets for the net revenue requirements to be recovered from customers for the related future tax expense. See Notes B and L. In 1993, the NYSPSC issued a Policy Statement approving accounting procedures consistent with the accounting rules for income taxes and providing assurances that these future increases in taxes will be recoverable in rates. See Note L. Accumulated deferred investment tax credits are amortized ratably over the lives of the related properties and applied as a reduction to future federal income tax expense. Con Edison and its subsidiaries file a consolidated federal income tax return. The consolidated income tax liability is allocated to each member of the consolidated group using the separate return method. Each member pays or receives an amount based on its own taxable income or loss in accordance with tax sharing agreements among the members of the consolidated group. Tax loss carryforwards are allocated among members in accordance with consolidated tax return regulations. State Income Tax Con Edison and its subsidiaries file a combined New York State Corporation Business Franchise Tax Return. Similar to a federal consolidated income tax return, the income of all entities in the combined group is subject to New York State taxation, after adjustments for differences between federal and New York law and apportionment of income among the states in which the company does business. Each member’s share of the New York State tax is based on its own New York State taxable income or loss. Research and Development Costs Generally research and development costs are charged to operating expenses as incurred. Research and development costs were as follows:
Reclassification Certain prior year amounts have been reclassified to conform with the current year presentation. Earnings Per Common Share Con Edison presents basic and diluted earnings per share on the face of its consolidated income statement. Basic earnings per share (EPS) are calculated by dividing earnings available to common shareholders (“Net income for common stock” on Con Edison’s consolidated income statement) by the weighted average number of Con Edison common shares outstanding during the period. In the calculation of diluted EPS, weighted average shares outstanding are increased for additional shares that would be outstanding if potentially dilutive securities were converted to common stock. Potentially dilutive securities for Con Edison consist of restricted stock units, deferred stock units and stock options for which the average market price of the common shares for the period was greater than the exercise price. See Note M.
Basic and diluted EPS for Con Edison are calculated as follows:
The computation of diluted EPS for the years ended December 31, 2014, 2013 and 2012 exclude immaterial amounts of performance share awards that were not included because of their anti-dilutive effect. Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Changes in Accumulated Other Comprehensive Income by Component Changes to accumulated other comprehensive income (OCI) for Con Edison and CECONY are as follows:
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- Definition
The entire disclosure for all significant accounting policies of the reporting entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Regulatory Matters
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| Regulatory Matters | Note B – Regulatory Matters Rate Plans The Utilities provide service to New York customers according to the terms of tariffs approved by the NYSPSC. Tariffs for service to customers of O&R’s New Jersey and Pennsylvania regulated utility subsidiaries are approved by utility regulators in those states. The tariffs include schedules of rates for service that limit the rates charged by the Utilities to amounts that recover from their customers costs approved by the regulator, including capital costs, of providing service to customers as defined by the tariff. The tariffs implement rate plans adopted by state utility regulators in rate orders issued at the conclusion of rate proceedings. Pursuant to the Utilities’ rate plans, there generally can be no change to the charges to customers during the respective terms of the rate plans other than specified adjustments provided for in the rate plans. The Utilities’ rate plans each cover specified periods, but rates determined pursuant to a plan generally continue in effect until a new rate plan is approved by the state utility regulator. Common provisions of the Utilities’ rate plans include: Recoverable energy costs that allow the Utilities to recover on a current basis the costs for the energy they supply with no mark-up to their full-service customers. Cost reconciliations that reconcile pension and other postretirement benefit costs, environmental remediation costs, property taxes, variable rate tax-exempt debt and certain other costs to amounts reflected in delivery rates for such costs. Utilities generally retain the right to petition for recovery or accounting deferral of extraordinary and material cost increases for items such as major storm events and provision is sometimes made for the utility to retain a share of cost reductions, for example, property tax refunds. Revenue decoupling mechanisms that reconcile actual energy delivery revenues to the authorized delivery revenues approved by the NYSPSC. The difference is accrued with interest for refund to, or recovery from customers, as applicable. Earnings sharing that require the Utilities to defer for customer benefit a portion of earnings over specified rates of return on common equity. There is no symmetric mechanism for earnings below specified rates of return on common equity. Negative revenue adjustments for failure to meet certain performance standards relating to service, reliability, safety and other matters. Net utility plant reconciliations that require deferral as a regulatory liability of the revenue requirement impact of the amount, if any, by which actual average net utility plant balances are less than amounts reflected in rates. Rate base is, in general, the sum of the Utilities’ net plant and working capital less deferred taxes. For each rate plan, the NYSPSC uses a forecast of the average rate base for each year that new rates would be in effect (“rate year”). The New Jersey Board of Public Utilities (NJBPU) and the Pennsylvania Public Utility Commission (PAPUC) use the rate base balances that would exist at the beginning of the rate year. Weighted average cost of capital is determined based on the authorized common equity ratio, return on common equity, cost of long-term debt and customer deposits reflected in each rate plan. For each rate plan, the revenues designed to provide the utility a return on invested capital for each rate year is determined by multiplying the Utilities’ rate base by the utility’s pre-tax weighted average cost of capital. The Utilities’ actual return on common equity will reflect their actual operations for each rate year, and may be more or less than the authorized return on equity reflected in their rate plans (and if more, may be subject to earnings sharing).
The following tables contain a summary of the Utilities’ rate plans:
In January 2015, CECONY filed a request with the NYSPSC for an electric rate increase of $368 million, effective January 2016. The filing reflects a return on common equity of 10 percent and a common equity ratio of approximately 48 percent. The company also is requesting continuation of provisions pursuant to which expenses for pension and other postretirement benefits, variable rate, tax-exempt debt, storms, the impact of new laws and environmental site investigation and remediation are reconciled to amounts reflected in rates. In addition, the company is requesting reconciliation of property taxes and municipal infrastructure support costs that, unlike the current provisions, would provide for full reconciliation of such costs. The filing also reflects continuation of the revenue decoupling mechanism and provisions for recovery of purchased power and fuel costs from customers.
On November 14, 2014, O&R filed a request with the NYSPSC for an increase in the rates it charges for electric service rendered in New York, effective November 1, 2015, of $33.4 million. The filing reflects a return on common equity of 9.75 percent and a common equity ratio of 48 percent. The filing proposes continuation of the current provisions with respect to recovery from customers of the cost of purchased power, and the reconciliation of actual expenses allocable to the electric business to the amounts for such costs reflected in electric rates for storm costs, pension and other postretirement benefit costs, environmental remediation and property taxes.
On November 14, 2014, O&R filed a request with the NYSPSC for an increase in the rates it charges for gas service rendered in New York, effective November 1, 2015, of $40.7 million. The filing reflects a return on common equity of 9.75 percent and a common equity ratio of 48 percent. The filing proposes continuation of the current provisions with respect to recovery from customers of the cost of purchased gas, and the reconciliation of actual expenses allocable to the gas business to the amounts for such costs reflected in gas rates for pension and other postretirement benefit costs, environmental remediation and property taxes.
Other Regulatory Matters In February 2009, the NYSPSC commenced a proceeding to examine the prudence of certain CECONY expenditures following the arrests of employees for accepting illegal payments from a construction contractor. Subsequently, additional employees were arrested for accepting illegal payments from materials suppliers and an engineering firm. The arrested employees were terminated by the company and have pled guilty or been convicted. Pursuant to NYSPSC orders, a portion of the company’s revenues (currently, $249 million, $32 million and $6 million on an annual basis for electric, gas and steam service, respectively) is being collected subject to potential refund to customers. The amount of electric revenues collected subject to refund, which was established in a different proceeding, and the amount of gas and steam revenues collected subject to refund were not established as indicative of the company’s potential liability in this proceeding. At December 31, 2014, the company had collected an estimated $1,675 million from customers subject to potential refund in connection with this proceeding. In January 2013, a NYSPSC consultant reported its estimate, with which the company does not agree, of $208 million of overcharges with respect to a substantial portion of the company’s construction expenditures from January 2000 to January 2009. The company is disputing the consultant’s estimate, including its determinations as to overcharges regarding specific construction expenditures it selected to review and its methodology of extrapolating such determinations over a substantial portion of the construction expenditures during this period. The NYSPSC’s consultant has not reviewed the company’s other expenditures. The company and NYSPSC staff are exploring a settlement in this proceeding. There is no assurance that there will be a settlement, and any settlement would be subject to NYSPSC approval. At December 31, 2014, the company had a $105 million regulatory liability relating to this matter. The company currently estimates that any additional amount the NYSPSC requires the company to refund to customers in excess of the regulatory liability accrued could range up to an amount based on the NYSPSC consultant’s $208 million estimate of overcharges. In late October 2012, Superstorm Sandy caused extensive damage to the Utilities’ electric distribution system and interrupted service to approximately 1.4 million customers. Superstorm Sandy also damaged CECONY’s steam system and interrupted service to many of its steam customers. As of December 31, 2014, CECONY and O&R incurred response and restoration costs for Superstorm Sandy of $503 million and $91 million, respectively (including capital expenditures of $148 million and $15 million, respectively). Most of the costs that were not capitalized were deferred for recovery as a regulatory asset under the Utilities’ electric rate plans. See “Regulatory Assets and Liabilities” below. CECONY’s current electric rate plan includes collection from customers of deferred storm costs (including for Superstorm Sandy), subject to refund following NYSPSC review of the costs. In November 2014, O&R requested recovery of deferred storm costs for its New York electric operations, which are subject to NYSPSC review. RECO’s current electric rate plan includes collection from customers of deferred storm costs. See “Rate Plans” above. In June 2014, the NYSPSC initiated a proceeding to investigate the practices of qualifying persons to perform plastic fusions on gas facilities. New York State regulations require gas utilities to qualify and, except in certain circumstances, annually requalify workers that perform fusion to join plastic pipe. The NYSPSC directed the New York gas utilities to provide information in this proceeding about their compliance with the qualification and requalification requirements and related matters; their procedures for compliance with all gas safety regulations; and their annual chief executive officer certifications regarding these and other procedures. CECONY’s qualification and requalification procedures had not included certain required testing to evaluate specimen fuses. In addition, CECONY and O&R had not timely requalified certain workers that had been qualified under their respective procedures to perform fusion to join plastic pipe. CECONY and O&R have requalified their workers who perform plastic pipe fusions. In October 2014, CECONY and O&R submitted for NYSPSC staff review their plans for testing plastic pipe fusions that were performed on their gas delivery systems, additional leakage surveying and reporting.
Regulatory Assets and Liabilities Regulatory assets and liabilities at December 31, 2014 and 2013 were comprised of the following items:
Unrecognized pension and other postretirement costs represents the net regulatory asset associated with the accounting rules for retirement benefits. See Note A. Deferred storm costs represent response and restoration costs, other than capital expenditures, in connection with Superstorm Sandy and other major storms that were deferred by the Utilities. See “Other Regulatory Matters,” above. Net electric deferrals represents the remaining unamortized balance of certain regulatory assets and liabilities of CECONY that were combined effective April 1, 2010 and are being amortized to income over a ten-year period. Revenue taxes represents the timing difference between taxes collected and paid by the Utilities to fund mass transportation. Effective March 31, 2009, the NYSPSC authorized CECONY to accrue unbilled electric, gas and steam revenues. CECONY has deferred the net margin on the unbilled revenues for the future benefit of customers by recording a regulatory liability of $138 million and $133 million at December 31, 2014 and 2013, respectively, for the difference between the unbilled revenues and energy cost liabilities. |
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CECONY [Member]
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| Regulatory Matters | Note B – Regulatory Matters Rate Plans The Utilities provide service to New York customers according to the terms of tariffs approved by the NYSPSC. Tariffs for service to customers of O&R’s New Jersey and Pennsylvania regulated utility subsidiaries are approved by utility regulators in those states. The tariffs include schedules of rates for service that limit the rates charged by the Utilities to amounts that recover from their customers costs approved by the regulator, including capital costs, of providing service to customers as defined by the tariff. The tariffs implement rate plans adopted by state utility regulators in rate orders issued at the conclusion of rate proceedings. Pursuant to the Utilities’ rate plans, there generally can be no change to the charges to customers during the respective terms of the rate plans other than specified adjustments provided for in the rate plans. The Utilities’ rate plans each cover specified periods, but rates determined pursuant to a plan generally continue in effect until a new rate plan is approved by the state utility regulator. Common provisions of the Utilities’ rate plans include: Recoverable energy costs that allow the Utilities to recover on a current basis the costs for the energy they supply with no mark-up to their full-service customers. Cost reconciliations that reconcile pension and other postretirement benefit costs, environmental remediation costs, property taxes, variable rate tax-exempt debt and certain other costs to amounts reflected in delivery rates for such costs. Utilities generally retain the right to petition for recovery or accounting deferral of extraordinary and material cost increases for items such as major storm events and provision is sometimes made for the utility to retain a share of cost reductions, for example, property tax refunds. Revenue decoupling mechanisms that reconcile actual energy delivery revenues to the authorized delivery revenues approved by the NYSPSC. The difference is accrued with interest for refund to, or recovery from customers, as applicable. Earnings sharing that require the Utilities to defer for customer benefit a portion of earnings over specified rates of return on common equity. There is no symmetric mechanism for earnings below specified rates of return on common equity. Negative revenue adjustments for failure to meet certain performance standards relating to service, reliability, safety and other matters. Net utility plant reconciliations that require deferral as a regulatory liability of the revenue requirement impact of the amount, if any, by which actual average net utility plant balances are less than amounts reflected in rates. Rate base is, in general, the sum of the Utilities’ net plant and working capital less deferred taxes. For each rate plan, the NYSPSC uses a forecast of the average rate base for each year that new rates would be in effect (“rate year”). The New Jersey Board of Public Utilities (NJBPU) and the Pennsylvania Public Utility Commission (PAPUC) use the rate base balances that would exist at the beginning of the rate year. Weighted average cost of capital is determined based on the authorized common equity ratio, return on common equity, cost of long-term debt and customer deposits reflected in each rate plan. For each rate plan, the revenues designed to provide the utility a return on invested capital for each rate year is determined by multiplying the Utilities’ rate base by the utility’s pre-tax weighted average cost of capital. The Utilities’ actual return on common equity will reflect their actual operations for each rate year, and may be more or less than the authorized return on equity reflected in their rate plans (and if more, may be subject to earnings sharing).
The following tables contain a summary of the Utilities’ rate plans:
In January 2015, CECONY filed a request with the NYSPSC for an electric rate increase of $368 million, effective January 2016. The filing reflects a return on common equity of 10 percent and a common equity ratio of approximately 48 percent. The company also is requesting continuation of provisions pursuant to which expenses for pension and other postretirement benefits, variable rate, tax-exempt debt, storms, the impact of new laws and environmental site investigation and remediation are reconciled to amounts reflected in rates. In addition, the company is requesting reconciliation of property taxes and municipal infrastructure support costs that, unlike the current provisions, would provide for full reconciliation of such costs. The filing also reflects continuation of the revenue decoupling mechanism and provisions for recovery of purchased power and fuel costs from customers.
On November 14, 2014, O&R filed a request with the NYSPSC for an increase in the rates it charges for electric service rendered in New York, effective November 1, 2015, of $33.4 million. The filing reflects a return on common equity of 9.75 percent and a common equity ratio of 48 percent. The filing proposes continuation of the current provisions with respect to recovery from customers of the cost of purchased power, and the reconciliation of actual expenses allocable to the electric business to the amounts for such costs reflected in electric rates for storm costs, pension and other postretirement benefit costs, environmental remediation and property taxes.
On November 14, 2014, O&R filed a request with the NYSPSC for an increase in the rates it charges for gas service rendered in New York, effective November 1, 2015, of $40.7 million. The filing reflects a return on common equity of 9.75 percent and a common equity ratio of 48 percent. The filing proposes continuation of the current provisions with respect to recovery from customers of the cost of purchased gas, and the reconciliation of actual expenses allocable to the gas business to the amounts for such costs reflected in gas rates for pension and other postretirement benefit costs, environmental remediation and property taxes.
Other Regulatory Matters In February 2009, the NYSPSC commenced a proceeding to examine the prudence of certain CECONY expenditures following the arrests of employees for accepting illegal payments from a construction contractor. Subsequently, additional employees were arrested for accepting illegal payments from materials suppliers and an engineering firm. The arrested employees were terminated by the company and have pled guilty or been convicted. Pursuant to NYSPSC orders, a portion of the company’s revenues (currently, $249 million, $32 million and $6 million on an annual basis for electric, gas and steam service, respectively) is being collected subject to potential refund to customers. The amount of electric revenues collected subject to refund, which was established in a different proceeding, and the amount of gas and steam revenues collected subject to refund were not established as indicative of the company’s potential liability in this proceeding. At December 31, 2014, the company had collected an estimated $1,675 million from customers subject to potential refund in connection with this proceeding. In January 2013, a NYSPSC consultant reported its estimate, with which the company does not agree, of $208 million of overcharges with respect to a substantial portion of the company’s construction expenditures from January 2000 to January 2009. The company is disputing the consultant’s estimate, including its determinations as to overcharges regarding specific construction expenditures it selected to review and its methodology of extrapolating such determinations over a substantial portion of the construction expenditures during this period. The NYSPSC’s consultant has not reviewed the company’s other expenditures. The company and NYSPSC staff are exploring a settlement in this proceeding. There is no assurance that there will be a settlement, and any settlement would be subject to NYSPSC approval. At December 31, 2014, the company had a $105 million regulatory liability relating to this matter. The company currently estimates that any additional amount the NYSPSC requires the company to refund to customers in excess of the regulatory liability accrued could range up to an amount based on the NYSPSC consultant’s $208 million estimate of overcharges. In late October 2012, Superstorm Sandy caused extensive damage to the Utilities’ electric distribution system and interrupted service to approximately 1.4 million customers. Superstorm Sandy also damaged CECONY’s steam system and interrupted service to many of its steam customers. As of December 31, 2014, CECONY and O&R incurred response and restoration costs for Superstorm Sandy of $503 million and $91 million, respectively (including capital expenditures of $148 million and $15 million, respectively). Most of the costs that were not capitalized were deferred for recovery as a regulatory asset under the Utilities’ electric rate plans. See “Regulatory Assets and Liabilities” below. CECONY’s current electric rate plan includes collection from customers of deferred storm costs (including for Superstorm Sandy), subject to refund following NYSPSC review of the costs. In November 2014, O&R requested recovery of deferred storm costs for its New York electric operations, which are subject to NYSPSC review. RECO’s current electric rate plan includes collection from customers of deferred storm costs. See “Rate Plans” above. In June 2014, the NYSPSC initiated a proceeding to investigate the practices of qualifying persons to perform plastic fusions on gas facilities. New York State regulations require gas utilities to qualify and, except in certain circumstances, annually requalify workers that perform fusion to join plastic pipe. The NYSPSC directed the New York gas utilities to provide information in this proceeding about their compliance with the qualification and requalification requirements and related matters; their procedures for compliance with all gas safety regulations; and their annual chief executive officer certifications regarding these and other procedures. CECONY’s qualification and requalification procedures had not included certain required testing to evaluate specimen fuses. In addition, CECONY and O&R had not timely requalified certain workers that had been qualified under their respective procedures to perform fusion to join plastic pipe. CECONY and O&R have requalified their workers who perform plastic pipe fusions. In October 2014, CECONY and O&R submitted for NYSPSC staff review their plans for testing plastic pipe fusions that were performed on their gas delivery systems, additional leakage surveying and reporting.
Regulatory Assets and Liabilities Regulatory assets and liabilities at December 31, 2014 and 2013 were comprised of the following items:
Unrecognized pension and other postretirement costs represents the net regulatory asset associated with the accounting rules for retirement benefits. See Note A. Deferred storm costs represent response and restoration costs, other than capital expenditures, in connection with Superstorm Sandy and other major storms that were deferred by the Utilities. See “Other Regulatory Matters,” above. Net electric deferrals represents the remaining unamortized balance of certain regulatory assets and liabilities of CECONY that were combined effective April 1, 2010 and are being amortized to income over a ten-year period. Revenue taxes represents the timing difference between taxes collected and paid by the Utilities to fund mass transportation. Effective March 31, 2009, the NYSPSC authorized CECONY to accrue unbilled electric, gas and steam revenues. CECONY has deferred the net margin on the unbilled revenues for the future benefit of customers by recording a regulatory liability of $138 million and $133 million at December 31, 2014 and 2013, respectively, for the difference between the unbilled revenues and energy cost liabilities. |
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Public utilities disclosure of regulatory matters. No definition available.
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| Capitalization | Note C – Capitalization Common Stock At December 31, 2014 and 2013, Con Edison owned all of the issued and outstanding shares of common stock of the Utilities and the competitive energy businesses. CECONY owns 21,976,200 shares of Con Edison stock, which it purchased prior to 2001 in connection with Con Edison’s stock repurchase plan. CECONY presents in the financial statements the cost of the Con Edison stock it owns as a reduction of common shareholder’s equity. Capitalization of Con Edison The outstanding capitalization for each of the Companies is shown on its Consolidated Statement of Capitalization, and for Con Edison includes the Utilities’ outstanding debt. Preferred Stock of CECONY In May 2012, CECONY redeemed all of its outstanding shares of $5 Cumulative Preferred Stock and Cumulative Preferred Stock ($100 par value). Dividends In accordance with NYSPSC requirements, the dividends that the Utilities generally pay are limited to not more than 100 percent of their respective income available for dividends calculated on a two-year rolling average basis. Excluded from the calculation of “income available for dividends” are non-cash charges to income resulting from accounting changes or charges to income resulting from significant unanticipated events. The restriction also does not apply to dividends paid in order to transfer to Con Edison proceeds from major transactions, such as asset sales, or to dividends reducing each utility subsidiary’s equity ratio to a level appropriate to its business risk. Long-term Debt Long-term debt maturing in the period 2015-2019 is as follows:
The Utilities have issued $494 million of tax-exempt debt through the New York State Energy Research and Development Authority (NYSERDA) that currently bear interest at a rate determined weekly and is subject to tender by bondholders for purchase by the Utilities. The carrying amounts and fair values of long-term debt at December 31, 2014 and 2013 are:
Fair values of long-term debt have been estimated primarily using available market information. For Con Edison, $13,362 million and $636 million of the fair value of long-term debt at December 31, 2014 are classified as Level 2 and Level 3, respectively. For CECONY, $12,210 million and $636 million of the fair value of long-term debt at December 31, 2014 are classified as Level 2 and Level 3, respectively (see Note P). The $636 million of long-term debt classified as Level 3 is CECONY’s tax-exempt, auction-rate securities for which the market is highly illiquid and there is a lack of observable inputs. At December 31, 2014 and 2013, long-term debt of Con Edison included $18 million and $22 million, respectively, of Transition Bonds issued in 2004 by O&R’s New Jersey utility subsidiary through a special purpose entity. Significant Debt Covenants The significant debt covenants under the financing arrangements for the notes of Con Edison and the debentures of CECONY are obligations to pay principal and interest when due, covenants not to consolidate with or merge into any other corporation unless certain conditions are met and, for Con Edison’s notes, covenants that Con Edison shall continue its utility business in New York City and shall not permit Con Edison’s ratio of consolidated debt to consolidated capital to exceed 0.675 to 1. Con Edison’s notes are also subject to cross default provisions with respect to other indebtedness of Con Edison or its material subsidiaries having a then outstanding principal balance in excess of $100 million. CECONY’s debentures have no cross default provisions. The tax-exempt financing arrangements of the Utilities are subject to covenants for the CECONY debentures discussed above and the covenants discussed below. The Companies were in compliance with their significant debt covenants at December 31, 2014. The tax-exempt financing arrangements involved the issuance of uncollateralized promissory notes of the Utilities to NYSERDA in exchange for the net proceeds of a like amount of tax-exempt bonds with substantially the same terms sold to the public by NYSERDA. The tax-exempt financing arrangements include covenants with respect to the tax-exempt status of the financing, including covenants with respect to the use of the facilities financed. The arrangements include provisions for the maintenance of liquidity and credit facilities, the failure to comply with which would, except as otherwise provided, constitute an event of default for the debt to which such provisions applied. The failure to comply with debt covenants would, except as otherwise provided, constitute an event of default for the debt to which such provisions applied. If an event of default were to occur, the principal and accrued interest on the debt to which such event of default applied and, in the case of the Con Edison notes, a make-whole premium might and, in the case of certain events of default would, become due and payable immediately. The liquidity and credit facilities currently in effect for the tax-exempt financing include covenants that the ratio of debt to total capital of the obligated utility will not at any time exceed 0.65 to 1 and that, subject to certain exceptions, the utility will not mortgage, lien, pledge or otherwise encumber its assets. Certain of the facilities also include as events of default, defaults in payments of other debt obligations in excess of specified levels ($150 million or $100 million for CECONY, depending on the facility). |
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CECONY [Member]
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| Capitalization | Note C – Capitalization Common Stock At December 31, 2014 and 2013, Con Edison owned all of the issued and outstanding shares of common stock of the Utilities and the competitive energy businesses. CECONY owns 21,976,200 shares of Con Edison stock, which it purchased prior to 2001 in connection with Con Edison’s stock repurchase plan. CECONY presents in the financial statements the cost of the Con Edison stock it owns as a reduction of common shareholder’s equity. Capitalization of Con Edison The outstanding capitalization for each of the Companies is shown on its Consolidated Statement of Capitalization, and for Con Edison includes the Utilities’ outstanding debt. Preferred Stock of CECONY In May 2012, CECONY redeemed all of its outstanding shares of $5 Cumulative Preferred Stock and Cumulative Preferred Stock ($100 par value). Dividends In accordance with NYSPSC requirements, the dividends that the Utilities generally pay are limited to not more than 100 percent of their respective income available for dividends calculated on a two-year rolling average basis. Excluded from the calculation of “income available for dividends” are non-cash charges to income resulting from accounting changes or charges to income resulting from significant unanticipated events. The restriction also does not apply to dividends paid in order to transfer to Con Edison proceeds from major transactions, such as asset sales, or to dividends reducing each utility subsidiary’s equity ratio to a level appropriate to its business risk. Long-term Debt Long-term debt maturing in the period 2015-2019 is as follows:
The Utilities have issued $494 million of tax-exempt debt through the New York State Energy Research and Development Authority (NYSERDA) that currently bear interest at a rate determined weekly and is subject to tender by bondholders for purchase by the Utilities. The carrying amounts and fair values of long-term debt at December 31, 2014 and 2013 are:
Fair values of long-term debt have been estimated primarily using available market information. For Con Edison, $13,362 million and $636 million of the fair value of long-term debt at December 31, 2014 are classified as Level 2 and Level 3, respectively. For CECONY, $12,210 million and $636 million of the fair value of long-term debt at December 31, 2014 are classified as Level 2 and Level 3, respectively (see Note P). The $636 million of long-term debt classified as Level 3 is CECONY’s tax-exempt, auction-rate securities for which the market is highly illiquid and there is a lack of observable inputs. At December 31, 2014 and 2013, long-term debt of Con Edison included $18 million and $22 million, respectively, of Transition Bonds issued in 2004 by O&R’s New Jersey utility subsidiary through a special purpose entity. Significant Debt Covenants The significant debt covenants under the financing arrangements for the notes of Con Edison and the debentures of CECONY are obligations to pay principal and interest when due, covenants not to consolidate with or merge into any other corporation unless certain conditions are met and, for Con Edison’s notes, covenants that Con Edison shall continue its utility business in New York City and shall not permit Con Edison’s ratio of consolidated debt to consolidated capital to exceed 0.675 to 1. Con Edison’s notes are also subject to cross default provisions with respect to other indebtedness of Con Edison or its material subsidiaries having a then outstanding principal balance in excess of $100 million. CECONY’s debentures have no cross default provisions. The tax-exempt financing arrangements of the Utilities are subject to covenants for the CECONY debentures discussed above and the covenants discussed below. The Companies were in compliance with their significant debt covenants at December 31, 2014. The tax-exempt financing arrangements involved the issuance of uncollateralized promissory notes of the Utilities to NYSERDA in exchange for the net proceeds of a like amount of tax-exempt bonds with substantially the same terms sold to the public by NYSERDA. The tax-exempt financing arrangements include covenants with respect to the tax-exempt status of the financing, including covenants with respect to the use of the facilities financed. The arrangements include provisions for the maintenance of liquidity and credit facilities, the failure to comply with which would, except as otherwise provided, constitute an event of default for the debt to which such provisions applied. The failure to comply with debt covenants would, except as otherwise provided, constitute an event of default for the debt to which such provisions applied. If an event of default were to occur, the principal and accrued interest on the debt to which such event of default applied and, in the case of the Con Edison notes, a make-whole premium might and, in the case of certain events of default would, become due and payable immediately. The liquidity and credit facilities currently in effect for the tax-exempt financing include covenants that the ratio of debt to total capital of the obligated utility will not at any time exceed 0.65 to 1 and that, subject to certain exceptions, the utility will not mortgage, lien, pledge or otherwise encumber its assets. Certain of the facilities also include as events of default, defaults in payments of other debt obligations in excess of specified levels ($150 million or $100 million for CECONY, depending on the facility). |
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- Definition
Capitalization [Text Block] No definition available.
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Short-Term Borrowing
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12 Months Ended |
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Dec. 31, 2014
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| Short-Term Borrowing | Note D – Short-Term Borrowing In October 2011, Con Edison and the Utilities entered into a credit agreement (Credit Agreement), under which banks are committed to provide loans and letters of credit on a revolving credit basis. The Credit Agreement, as amended in 2013, expires in October 2017. There is a maximum of $2.25 billion of credit available through October 2016 and approximately $2.1 billion of credit available from then through October 2017. The full amount is available to CECONY and $1 billion is available to Con Edison, including up to $1.2 billion of letters of credit. The Credit Agreement supports the Companies’ commercial paper programs. The Companies have not borrowed under the Credit Agreement. At December 31, 2014, Con Edison had $800 million of commercial paper outstanding of which $450 million was outstanding under CECONY’s program. The weighted average interest rate at December 31, 2014 was 0.4 percent for both Con Edison and CECONY. At December 31, 2013, Con Edison had $1,451 million of commercial paper outstanding of which $1,210 million was outstanding under CECONY’s program. The weighted average interest rate at December 31, 2013 was 0.2 percent for both Con Edison and CECONY. At December 31, 2014 and 2013, no loans were outstanding under the Credit Agreement and $11 million (including $11 million for CECONY) and $26 million (including $11 million for CECONY) of letters of credit were outstanding under the Credit Agreement. The banks’ commitments under the Credit Agreement are subject to certain conditions, including that there be no event of default. The commitments are not subject to maintenance of credit rating levels or the absence of a material adverse change. Upon a change of control of, or upon an event of default by one of the Companies, the banks may terminate their commitments with respect to that company, declare any amounts owed by that company under the Credit Agreement immediately due and payable and require that company to provide cash collateral relating to the letters of credit issued for it under the Credit Agreement. Events of default include the exceeding at any time of a ratio of consolidated debt to consolidated total capital of 0.65 to 1 (at December 31, 2014 this ratio was 0.51 to 1 for Con Edison and CECONY); having liens on its assets in an aggregate amount exceeding five percent of its consolidated total capital, subject to certain exceptions; and the failure, following any applicable notice period, to meet certain other customary covenants. Interest and fees charged for the revolving credit facilities and any loans made or letters of credit issued under the Credit Agreement reflect the Companies’ respective credit ratings. The Companies were in compliance with their covenants at December 31, 2014. See Note S for information about short-term borrowing between related parties. |
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CECONY [Member]
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| Short-Term Borrowing | Note D – Short-Term Borrowing In October 2011, Con Edison and the Utilities entered into a credit agreement (Credit Agreement), under which banks are committed to provide loans and letters of credit on a revolving credit basis. The Credit Agreement, as amended in 2013, expires in October 2017. There is a maximum of $2.25 billion of credit available through October 2016 and approximately $2.1 billion of credit available from then through October 2017. The full amount is available to CECONY and $1 billion is available to Con Edison, including up to $1.2 billion of letters of credit. The Credit Agreement supports the Companies’ commercial paper programs. The Companies have not borrowed under the Credit Agreement. At December 31, 2014, Con Edison had $800 million of commercial paper outstanding of which $450 million was outstanding under CECONY’s program. The weighted average interest rate at December 31, 2014 was 0.4 percent for both Con Edison and CECONY. At December 31, 2013, Con Edison had $1,451 million of commercial paper outstanding of which $1,210 million was outstanding under CECONY’s program. The weighted average interest rate at December 31, 2013 was 0.2 percent for both Con Edison and CECONY. At December 31, 2014 and 2013, no loans were outstanding under the Credit Agreement and $11 million (including $11 million for CECONY) and $26 million (including $11 million for CECONY) of letters of credit were outstanding under the Credit Agreement. The banks’ commitments under the Credit Agreement are subject to certain conditions, including that there be no event of default. The commitments are not subject to maintenance of credit rating levels or the absence of a material adverse change. Upon a change of control of, or upon an event of default by one of the Companies, the banks may terminate their commitments with respect to that company, declare any amounts owed by that company under the Credit Agreement immediately due and payable and require that company to provide cash collateral relating to the letters of credit issued for it under the Credit Agreement. Events of default include the exceeding at any time of a ratio of consolidated debt to consolidated total capital of 0.65 to 1 (at December 31, 2014 this ratio was 0.51 to 1 for Con Edison and CECONY); having liens on its assets in an aggregate amount exceeding five percent of its consolidated total capital, subject to certain exceptions; and the failure, following any applicable notice period, to meet certain other customary covenants. Interest and fees charged for the revolving credit facilities and any loans made or letters of credit issued under the Credit Agreement reflect the Companies’ respective credit ratings. The Companies were in compliance with their covenants at December 31, 2014. See Note S for information about short-term borrowing between related parties. |
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- Definition
The entire disclosure for short-term debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Pension Benefits
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| Pension Benefits | Note E – Pension Benefits Con Edison maintains a tax-qualified, non-contributory pension plan that covers substantially all employees of CECONY and O&R and certain employees of Con Edison’s competitive energy businesses. The plan is designed to comply with the Internal Revenue Code and the Employee Retirement Income Security Act of 1974. In addition, Con Edison maintains additional non-qualified supplemental pension plans.
Net Periodic Benefit Cost The components of the Companies’ total periodic benefit costs for 2014, 2013 and 2012 were as follows:
Funded Status The funded status at December 31, 2014, 2013 and 2012 was as follows:
The increase in the pension plan’s projected benefit obligation (due primarily to decreased discount rates and, as discussed below, the release of new mortality tables by the Society of Actuaries reflecting longer life expectancies) were the primary causes of the increased pension liability at Con Edison and CECONY of $2,144 million and $2,008 million, respectively, compared with December 31, 2013. For Con Edison, this increase in pension liability resulted in an increase to regulatory assets of $2,101 million for unrecognized net losses and unrecognized prior service costs associated with the Utilities consistent with the accounting rules for regulated operations, and a charge to OCI of $17 million (net of taxes) for the unrecognized net losses, and an immaterial change to OCI (net of taxes) for the unrecognized prior service costs associated with the competitive energy businesses and O&R’s New Jersey and Pennsylvania utility subsidiaries.
For CECONY, the increase in pension liability resulted in an increase to regulatory assets of $1,992 million for unrecognized net losses and unrecognized prior service costs consistent with the accounting rules for regulated operations, a debit to OCI of $3 million (net of taxes) for unrecognized net losses, and an immaterial change to OCI (net of taxes) for the unrecognized prior service costs associated with the competitive energy businesses. A portion of the unrecognized net loss and prior service cost for the pension plan, equal to $783 million and $4 million, respectively, will be recognized from accumulated OCI and the regulatory asset into net periodic benefit cost over the next year for Con Edison. Included in these amounts are $740 million and $2 million, respectively, for CECONY. At December 31, 2014 and 2013, Con Edison’s investments include $225 million and $201 million, respectively, held in external trust accounts for benefit payments pursuant to the supplemental retirement plans. Included in these amounts for CECONY were $208 million and $183 million, respectively. See Note P. The accumulated benefit obligations for the supplemental retirement plans for Con Edison and CECONY were $289 million and $250 million as of December 31, 2014 and $234 million and $199 million as of December 31, 2013, respectively. Assumptions The actuarial assumptions were as follows:
The expected return assumption reflects anticipated returns on the plan’s current and future assets. The Companies’ expected return was based on an evaluation of the current environment, market and economic outlook, relationships between the economy and asset class performance patterns, and recent and long-term trends in asset class performance. The projections were based on the plan’s target asset allocation. Discount Rate Assumption To determine the assumed discount rate, the Companies use a model that produces a yield curve based on yields on selected highly rated (Aa or higher by either Moody’s Investors Service (Moody’s) or Standard & Poor’s) corporate bonds. Bonds with insufficient liquidity, bonds with questionable pricing information and bonds that are not representative of the overall market are excluded from consideration. For example, the bonds used in the model cannot be callable, they must have a price between 50 percent and 200 percent of the original price, the yield must lie between 1 percent and 20 percent, and the amount of the bond issue outstanding must be in excess of $50 million. The spot rates defined by the yield curve and the plan’s projected benefit payments are used to develop a weighted average discount rate. Expected Benefit Payments Based on current assumptions, the Companies expect to make the following benefit payments over the next ten years:
Expected Contributions Based on estimates as of December 31, 2014, the Companies expect to make contributions to the pension plan during 2015 of $756 million (of which $703 million is to be contributed by CECONY). The Companies’ policy is to fund the total periodic benefit cost of the qualified plan to the extent tax deductible and to also contribute to the non-qualified plans. Plan Assets The asset allocations for the pension plan at the end of 2014, 2013 and 2012, and the target allocation for 2015 are as follows:
Con Edison has established a pension trust for the investment of assets to be used for the exclusive purpose of providing retirement benefits to participants and beneficiaries and payment of plan expenses. Pursuant to resolutions adopted by Con Edison’s Board of Directors, the Management Development and Compensation Committee of the Board of Directors (the Committee) has general oversight responsibility for Con Edison’s pension and other employee benefit plans. The pension plan’s named fiduciaries have been granted the authority to control and manage the operation and administration of the plans, including overall responsibility for the investment of assets in the trust and the power to appoint and terminate investment managers. The investment objectives of the Con Edison pension plan are to maintain a level and form of assets adequate to meet benefit obligations to participants, to achieve the expected long-term total return on the trust assets within a prudent level of risk and maintain a level of volatility that is not expected to have a material impact on the Company’s expected contribution and expense or the Company’s ability to meet plan obligations. The assets of the plan have no significant concentration of risk in one country (other than the United States), industry or entity. The strategic asset allocation is intended to meet the objectives of the pension plan by diversifying its funds across asset classes, investment styles and fund managers. An asset/liability study typically is conducted every few years to determine whether the current strategic asset allocation continues to represent the appropriate balance of expected risk and reward for the plan to meet expected liabilities. Each study considers the investment risk of the asset allocation and determines the optimal asset allocation for the plan. The target asset allocation for 2015 reflects the results of such a study conducted in 2011. Individual fund managers operate under written guidelines provided by Con Edison, which cover such areas as investment objectives, performance measurement, permissible investments, investment restrictions, trading and execution, and communication and reporting requirements. Con Edison management regularly monitors, and the named fiduciaries review and report to the Committee regarding, asset class performance, total fund performance, and compliance with asset allocation guidelines. Management changes fund managers and rebalances the portfolio as appropriate. At the direction of the named fiduciaries, such changes are reported to the Committee. Assets measured at fair value on a recurring basis are summarized below under a three-level hierarchy as defined by the accounting rules for fair value measurements (see Note P).
The fair values of the pension plan assets at December 31, 2014 by asset category are as follows:
The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2014 classified as Level 3 in the fair value hierarchy.
The fair values of the pension plan assets at December 31, 2013 by asset category are as follows:
The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2013 classified as Level 3 in the fair value hierarchy.
The Companies also offer a defined contribution savings plan that covers substantially all employees and made contributions to the plan as follows:
Mortality Table Revision The Companies adopted revised mortality tables effective December 31, 2014 in the measurement of its pension and other postretirement benefit plan obligations, accounting costs and required contribution amounts. The revised tables reflect the RP-2014 mortality tables published by the Society of Actuaries in October 2014, as adjusted based on the actual experience of the Companies. The new tables incorporate substantial life expectancy improvements relative to the last tables published in 2000 (RP-2000). As a result of the adoption, Con Edison recognized an increase in its pension benefit obligation of approximately $800 million as of December 31, 2014. The Companies, under their current New York rate plans, defer as a regulatory asset or liability, as the case may be, the differences between the actual level of expenses for pension and other postretirement benefits and amounts for those expenses reflected in rates. |
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CECONY [Member]
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| Pension Benefits | Note E – Pension Benefits Con Edison maintains a tax-qualified, non-contributory pension plan that covers substantially all employees of CECONY and O&R and certain employees of Con Edison’s competitive energy businesses. The plan is designed to comply with the Internal Revenue Code and the Employee Retirement Income Security Act of 1974. In addition, Con Edison maintains additional non-qualified supplemental pension plans.
Net Periodic Benefit Cost The components of the Companies’ total periodic benefit costs for 2014, 2013 and 2012 were as follows:
Funded Status The funded status at December 31, 2014, 2013 and 2012 was as follows:
The increase in the pension plan’s projected benefit obligation (due primarily to decreased discount rates and, as discussed below, the release of new mortality tables by the Society of Actuaries reflecting longer life expectancies) were the primary causes of the increased pension liability at Con Edison and CECONY of $2,144 million and $2,008 million, respectively, compared with December 31, 2013. For Con Edison, this increase in pension liability resulted in an increase to regulatory assets of $2,101 million for unrecognized net losses and unrecognized prior service costs associated with the Utilities consistent with the accounting rules for regulated operations, and a charge to OCI of $17 million (net of taxes) for the unrecognized net losses, and an immaterial change to OCI (net of taxes) for the unrecognized prior service costs associated with the competitive energy businesses and O&R’s New Jersey and Pennsylvania utility subsidiaries.
For CECONY, the increase in pension liability resulted in an increase to regulatory assets of $1,992 million for unrecognized net losses and unrecognized prior service costs consistent with the accounting rules for regulated operations, a debit to OCI of $3 million (net of taxes) for unrecognized net losses, and an immaterial change to OCI (net of taxes) for the unrecognized prior service costs associated with the competitive energy businesses. A portion of the unrecognized net loss and prior service cost for the pension plan, equal to $783 million and $4 million, respectively, will be recognized from accumulated OCI and the regulatory asset into net periodic benefit cost over the next year for Con Edison. Included in these amounts are $740 million and $2 million, respectively, for CECONY. At December 31, 2014 and 2013, Con Edison’s investments include $225 million and $201 million, respectively, held in external trust accounts for benefit payments pursuant to the supplemental retirement plans. Included in these amounts for CECONY were $208 million and $183 million, respectively. See Note P. The accumulated benefit obligations for the supplemental retirement plans for Con Edison and CECONY were $289 million and $250 million as of December 31, 2014 and $234 million and $199 million as of December 31, 2013, respectively. Assumptions The actuarial assumptions were as follows:
The expected return assumption reflects anticipated returns on the plan’s current and future assets. The Companies’ expected return was based on an evaluation of the current environment, market and economic outlook, relationships between the economy and asset class performance patterns, and recent and long-term trends in asset class performance. The projections were based on the plan’s target asset allocation. Discount Rate Assumption To determine the assumed discount rate, the Companies use a model that produces a yield curve based on yields on selected highly rated (Aa or higher by either Moody’s Investors Service (Moody’s) or Standard & Poor’s) corporate bonds. Bonds with insufficient liquidity, bonds with questionable pricing information and bonds that are not representative of the overall market are excluded from consideration. For example, the bonds used in the model cannot be callable, they must have a price between 50 percent and 200 percent of the original price, the yield must lie between 1 percent and 20 percent, and the amount of the bond issue outstanding must be in excess of $50 million. The spot rates defined by the yield curve and the plan’s projected benefit payments are used to develop a weighted average discount rate. Expected Benefit Payments Based on current assumptions, the Companies expect to make the following benefit payments over the next ten years:
Expected Contributions Based on estimates as of December 31, 2014, the Companies expect to make contributions to the pension plan during 2015 of $756 million (of which $703 million is to be contributed by CECONY). The Companies’ policy is to fund the total periodic benefit cost of the qualified plan to the extent tax deductible and to also contribute to the non-qualified plans. Plan Assets The asset allocations for the pension plan at the end of 2014, 2013 and 2012, and the target allocation for 2015 are as follows:
Con Edison has established a pension trust for the investment of assets to be used for the exclusive purpose of providing retirement benefits to participants and beneficiaries and payment of plan expenses. Pursuant to resolutions adopted by Con Edison’s Board of Directors, the Management Development and Compensation Committee of the Board of Directors (the Committee) has general oversight responsibility for Con Edison’s pension and other employee benefit plans. The pension plan’s named fiduciaries have been granted the authority to control and manage the operation and administration of the plans, including overall responsibility for the investment of assets in the trust and the power to appoint and terminate investment managers. The investment objectives of the Con Edison pension plan are to maintain a level and form of assets adequate to meet benefit obligations to participants, to achieve the expected long-term total return on the trust assets within a prudent level of risk and maintain a level of volatility that is not expected to have a material impact on the Company’s expected contribution and expense or the Company’s ability to meet plan obligations. The assets of the plan have no significant concentration of risk in one country (other than the United States), industry or entity. The strategic asset allocation is intended to meet the objectives of the pension plan by diversifying its funds across asset classes, investment styles and fund managers. An asset/liability study typically is conducted every few years to determine whether the current strategic asset allocation continues to represent the appropriate balance of expected risk and reward for the plan to meet expected liabilities. Each study considers the investment risk of the asset allocation and determines the optimal asset allocation for the plan. The target asset allocation for 2015 reflects the results of such a study conducted in 2011. Individual fund managers operate under written guidelines provided by Con Edison, which cover such areas as investment objectives, performance measurement, permissible investments, investment restrictions, trading and execution, and communication and reporting requirements. Con Edison management regularly monitors, and the named fiduciaries review and report to the Committee regarding, asset class performance, total fund performance, and compliance with asset allocation guidelines. Management changes fund managers and rebalances the portfolio as appropriate. At the direction of the named fiduciaries, such changes are reported to the Committee. Assets measured at fair value on a recurring basis are summarized below under a three-level hierarchy as defined by the accounting rules for fair value measurements (see Note P).
The fair values of the pension plan assets at December 31, 2014 by asset category are as follows:
The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2014 classified as Level 3 in the fair value hierarchy.
The fair values of the pension plan assets at December 31, 2013 by asset category are as follows:
The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2013 classified as Level 3 in the fair value hierarchy.
The Companies also offer a defined contribution savings plan that covers substantially all employees and made contributions to the plan as follows:
Mortality Table Revision The Companies adopted revised mortality tables effective December 31, 2014 in the measurement of its pension and other postretirement benefit plan obligations, accounting costs and required contribution amounts. The revised tables reflect the RP-2014 mortality tables published by the Society of Actuaries in October 2014, as adjusted based on the actual experience of the Companies. The new tables incorporate substantial life expectancy improvements relative to the last tables published in 2000 (RP-2000). As a result of the adoption, Con Edison recognized an increase in its pension benefit obligation of approximately $800 million as of December 31, 2014. The Companies, under their current New York rate plans, defer as a regulatory asset or liability, as the case may be, the differences between the actual level of expenses for pension and other postretirement benefits and amounts for those expenses reflected in rates. |
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- Definition
The entire disclosure for pension and other postretirement benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Other Postretirement Benefits
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Dec. 31, 2014
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| Other Postretirement Benefits | Note F – Other Postretirement Benefits The Utilities currently have contributory comprehensive hospital, medical and prescription drug programs for all retirees, their dependents and surviving spouses. CECONY also has a contributory life insurance program for bargaining unit employees and provides basic life insurance benefits up to a specified maximum at no cost to retired management employees. O&R has a non-contributory life insurance program for retirees. Certain employees of Con Edison’s competitive energy businesses are eligible to receive benefits under these programs.
Net Periodic Benefit Cost The components of the Companies’ net periodic postretirement benefit costs for 2014, 2013 and 2012 were as follows:
Funded Status The funded status of the programs at December 31, 2014, 2013 and 2012 were as follows:
In 2012, the Utilities amended their postretirement life and health benefit plans for management employees, resulting in a reduction to the obligation of $102 million. Also in 2012, the Utilities amended the retiree contributions for supplemental postretirement life insurance for CECONY management and weekly retirees, resulting in a reduction to the obligation of $25 million. Also in 2012, the Utilities elected to change the method of receiving the subsidy under Medicare Part D for retiree prescription drug coverage from the Retiree Drug Subsidy to the Employer Group Waiver Plan (EGWP) beginning in January 2013. Participation in the EGWP allows Con Edison to offer substantially the same postretirement benefits to eligible participants while increasing subsidy reimbursements received by the plans from the Federal Government. This change was effective January 2013 and, as a result, the Utilities recognized a reduction to their postretirement health benefit obligation of $306 million as of December 31, 2012, which was recorded as an actuarial gain. The increase in the other postretirement benefit plan obligation (due primarily to decreased discount rates) was the primary cause of the increased liability for other postretirement benefits at Con Edison and CECONY of $45 million and $32 million, respectively, compared with December 31, 2013. For Con Edison, this increased liability resulted in an increase to regulatory assets of $14 million for unrecognized net losses and unrecognized prior service costs associated with the Utilities consistent with the accounting rules for regulated operations, and a charge to OCI of $3 million (net of taxes) for the unrecognized net losses and an immaterial change to OCI (net of taxes) for the unrecognized prior service costs associated with the competitive energy businesses and O&R’s New Jersey subsidiary. For CECONY, the increase in liability resulted in an increase to regulatory assets of $6 million for unrecognized net losses and unrecognized prior service costs associated with the company consistent with the accounting rules for regulated operations, a debit to OCI of $2 million (net of taxes) for the unrecognized net losses and an immaterial change to OCI for unrecognized prior service costs associated with the competitive energy businesses. A portion of the unrecognized net losses and prior service costs for the other postretirement benefits, equal to $33 million and $(20) million, respectively, will be recognized from accumulated OCI and the regulatory asset into net periodic benefit cost over the next year for Con Edison. Included in these amounts are $29 million and $(14) million, respectively, for CECONY. Assumptions The actuarial assumptions were as follows:
Refer to Note E for descriptions of the basis for determining the expected return on assets, investment policies and strategies and the assumed discount rate. The health care cost trend rate used to determine net periodic benefit cost for the year ended December 31, 2014 was 5.50 percent, which is assumed to decrease gradually to 4.50 percent by 2018 and remain at that level thereafter. The health care cost trend rate used to determine benefit obligations as of December 31, 2014 was 5.25 percent, which is assumed to decrease gradually to 4.50 percent by 2018 and remain at that level thereafter. A one-percentage point change in the assumed health care cost trend rate would have the following effects at December 31, 2015:
Expected Benefit Payments Based on current assumptions, the Companies expect to make the following benefit payments over the next ten years, net of receipt of governmental subsidies:
Expected Contributions Based on estimates as of December 31, 2014, Con Edison expects to make a contribution of $6 million, nearly all of which is for CECONY, to the other postretirement benefit plans in 2015. Plan Assets The asset allocations for CECONY’s other postretirement benefit plans at the end of 2014, 2013 and 2012, and the target allocation for 2015 are as follows:
Con Edison has established postretirement health and life insurance benefit plan trusts for the investment of assets to be used for the exclusive purpose of providing other postretirement benefits to participants and beneficiaries. Refer to Note E for a discussion of Con Edison’s investment policy for its benefit plans.
The fair values of the plan assets at December 31, 2014 by asset category as defined by the accounting rules for fair value measurements (see Note P) are as follows:
The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2014 classified as Level 3 in the fair value hierarchy.
The fair values of the plan assets at December 31, 2013 by asset category (see Note P) are as follows:
The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2013 classified as Level 3 in the fair value hierarchy.
Mortality Table Revision The Companies adopted revised mortality tables effective December 31, 2014 in the measurement of its pension and other postretirement benefit plan obligations, accounting costs, and required contribution amounts as discussed in Note E. As a result of the adoption, Con Edison recognized an increase of less than $10 million in its other postretirement benefits obligation as of December 31, 2014. The Companies, under their current New York rate plans, defer as a regulatory asset or liability, as the case may be, the differences between the actual level of expenses for pension and other postretirement benefits and amounts for those expenses reflected in rates. |
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CECONY [Member]
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| Other Postretirement Benefits | Note F – Other Postretirement Benefits The Utilities currently have contributory comprehensive hospital, medical and prescription drug programs for all retirees, their dependents and surviving spouses. CECONY also has a contributory life insurance program for bargaining unit employees and provides basic life insurance benefits up to a specified maximum at no cost to retired management employees. O&R has a non-contributory life insurance program for retirees. Certain employees of Con Edison’s competitive energy businesses are eligible to receive benefits under these programs.
Net Periodic Benefit Cost The components of the Companies’ net periodic postretirement benefit costs for 2014, 2013 and 2012 were as follows:
Funded Status The funded status of the programs at December 31, 2014, 2013 and 2012 were as follows:
In 2012, the Utilities amended their postretirement life and health benefit plans for management employees, resulting in a reduction to the obligation of $102 million. Also in 2012, the Utilities amended the retiree contributions for supplemental postretirement life insurance for CECONY management and weekly retirees, resulting in a reduction to the obligation of $25 million. Also in 2012, the Utilities elected to change the method of receiving the subsidy under Medicare Part D for retiree prescription drug coverage from the Retiree Drug Subsidy to the Employer Group Waiver Plan (EGWP) beginning in January 2013. Participation in the EGWP allows Con Edison to offer substantially the same postretirement benefits to eligible participants while increasing subsidy reimbursements received by the plans from the Federal Government. This change was effective January 2013 and, as a result, the Utilities recognized a reduction to their postretirement health benefit obligation of $306 million as of December 31, 2012, which was recorded as an actuarial gain. The increase in the other postretirement benefit plan obligation (due primarily to decreased discount rates) was the primary cause of the increased liability for other postretirement benefits at Con Edison and CECONY of $45 million and $32 million, respectively, compared with December 31, 2013. For Con Edison, this increased liability resulted in an increase to regulatory assets of $14 million for unrecognized net losses and unrecognized prior service costs associated with the Utilities consistent with the accounting rules for regulated operations, and a charge to OCI of $3 million (net of taxes) for the unrecognized net losses and an immaterial change to OCI (net of taxes) for the unrecognized prior service costs associated with the competitive energy businesses and O&R’s New Jersey subsidiary. For CECONY, the increase in liability resulted in an increase to regulatory assets of $6 million for unrecognized net losses and unrecognized prior service costs associated with the company consistent with the accounting rules for regulated operations, a debit to OCI of $2 million (net of taxes) for the unrecognized net losses and an immaterial change to OCI for unrecognized prior service costs associated with the competitive energy businesses. A portion of the unrecognized net losses and prior service costs for the other postretirement benefits, equal to $33 million and $(20) million, respectively, will be recognized from accumulated OCI and the regulatory asset into net periodic benefit cost over the next year for Con Edison. Included in these amounts are $29 million and $(14) million, respectively, for CECONY. Assumptions The actuarial assumptions were as follows:
Refer to Note E for descriptions of the basis for determining the expected return on assets, investment policies and strategies and the assumed discount rate. The health care cost trend rate used to determine net periodic benefit cost for the year ended December 31, 2014 was 5.50 percent, which is assumed to decrease gradually to 4.50 percent by 2018 and remain at that level thereafter. The health care cost trend rate used to determine benefit obligations as of December 31, 2014 was 5.25 percent, which is assumed to decrease gradually to 4.50 percent by 2018 and remain at that level thereafter. A one-percentage point change in the assumed health care cost trend rate would have the following effects at December 31, 2015:
Expected Benefit Payments Based on current assumptions, the Companies expect to make the following benefit payments over the next ten years, net of receipt of governmental subsidies:
Expected Contributions Based on estimates as of December 31, 2014, Con Edison expects to make a contribution of $6 million, nearly all of which is for CECONY, to the other postretirement benefit plans in 2015. Plan Assets The asset allocations for CECONY’s other postretirement benefit plans at the end of 2014, 2013 and 2012, and the target allocation for 2015 are as follows:
Con Edison has established postretirement health and life insurance benefit plan trusts for the investment of assets to be used for the exclusive purpose of providing other postretirement benefits to participants and beneficiaries. Refer to Note E for a discussion of Con Edison’s investment policy for its benefit plans.
The fair values of the plan assets at December 31, 2014 by asset category as defined by the accounting rules for fair value measurements (see Note P) are as follows:
The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2014 classified as Level 3 in the fair value hierarchy.
The fair values of the plan assets at December 31, 2013 by asset category (see Note P) are as follows:
The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2013 classified as Level 3 in the fair value hierarchy.
Mortality Table Revision The Companies adopted revised mortality tables effective December 31, 2014 in the measurement of its pension and other postretirement benefit plan obligations, accounting costs, and required contribution amounts as discussed in Note E. As a result of the adoption, Con Edison recognized an increase of less than $10 million in its other postretirement benefits obligation as of December 31, 2014. The Companies, under their current New York rate plans, defer as a regulatory asset or liability, as the case may be, the differences between the actual level of expenses for pension and other postretirement benefits and amounts for those expenses reflected in rates. |
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- Definition
The entire disclosure for postemployment benefits, which may include supplemental unemployment benefits, obligations recognized for all types of benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement. Disclosure may also include discussion that an obligation for postemployment benefits is not accrued in accordance with regulation only because the amount cannot be reasonably estimated. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Environmental Matters
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Dec. 31, 2014
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| Environmental Matters | Note G – Environmental Matters Superfund Sites Hazardous substances, such as asbestos, polychlorinated biphenyls (PCBs) and coal tar, have been used or generated in the course of operations of the Utilities and their predecessors and are present at sites and in facilities and equipment they currently or previously owned, including sites at which gas was manufactured or stored. The Federal Comprehensive Environmental Response, Compensation and Liability Act of 1980 and similar state statutes (Superfund) impose joint and several liability, regardless of fault, upon generators of hazardous substances for investigation and remediation costs (which include costs of demolition, removal, disposal, storage, replacement, containment, and monitoring) and natural resource damages. Liability under these laws can be material and may be imposed for contamination from past acts, even though such past acts may have been lawful at the time they occurred. The sites at which the Utilities have been asserted to have liability under these laws, including their manufactured gas plant sites and any neighboring areas to which contamination may have migrated, are referred to herein as “Superfund Sites.” For Superfund Sites where there are other potentially responsible parties and the Utilities are not managing the site investigation and remediation, the accrued liability represents an estimate of the amount the Utilities will need to pay to investigate and, where determinable, discharge their related obligations. For Superfund Sites (including the manufactured gas plant sites) for which one of the Utilities is managing the investigation and remediation, the accrued liability represents an estimate of the company’s share of the undiscounted cost to investigate the sites and, for sites that have been investigated in whole or in part, the cost to remediate the sites, if remediation is necessary and if a reasonable estimate of such cost can be made. Remediation costs are estimated in light of the information available, applicable remediation standards and experience with similar sites. The accrued liabilities and regulatory assets related to Superfund Sites at December 31, 2014 and 2013 were as follows:
Most of the accrued Superfund Site liability relates to sites that have been investigated, in whole or in part. However, for some of the sites, the extent and associated cost of the required remediation has not yet been determined. As investigations progress and information pertaining to the required remediation becomes available, the Utilities expect that additional liability may be accrued, the amount of which is not presently determinable but may be material. Con Edison and CECONY estimate that in 2015 they will incur costs for remediation of approximately $39 million and $35 million, respectively. The Companies are unable to estimate the time period over which the remaining accrued liability will be incurred because, among other things, the required remediation has not been determined for some of the sites. Under their current rate plans, the Utilities are permitted to recover or defer as regulatory assets (for subsequent recovery through rates) certain site investigation and remediation costs. Environmental remediation costs incurred and insurance recoveries received related to Superfund Sites at December 31, 2014 and 2013 were as follows:
In 2014, Con Edison and CECONY estimated that for their manufactured gas plant sites (including CECONY’s Astoria site), the aggregate undiscounted potential liability for the investigation and remediation of coal tar and/or other environmental contaminants could range up to $2.7 billion and $2.5 billion, respectively. These estimates were based on the assumption that there is contamination at all sites, including those that have not yet been fully investigated and additional assumptions about the extent of the contamination and the type and extent of the remediation that may be required. Actual experience may be materially different. Asbestos Proceedings Suits have been brought in New York State and federal courts against the Utilities and many other defendants, wherein a large number of plaintiffs sought large amounts of compensatory and punitive damages for deaths and injuries allegedly caused by exposure to asbestos at various premises of the Utilities. The suits that have been resolved, which are many, have been resolved without any payment by the Utilities, or for amounts that were not, in the aggregate, material to them. The amounts specified in all the remaining thousands of suits total billions of dollars; however, the Utilities believe that these amounts are greatly exaggerated, based on the disposition of previous claims. At December 31, 2014 and 2013, Con Edison and CECONY had accrued their estimated aggregate undiscounted potential liabilities for these suits and additional suits that may be brought over the next 15 years of $8 million and $7 million, respectively. The estimates were based upon a combination of modeling, historical data analysis and risk factor assessment. Trial courts have begun, and unless otherwise determined by an appellate court may continue, to apply a different standard for determining liability in asbestos suits than the standard that applied historically. As a result, the Companies currently believe that there is a reasonable possibility of an exposure to loss in excess of the liability accrued for the suits. The Companies are unable to estimate the amount or range of such loss. In addition, certain current and former employees have claimed or are claiming workers’ compensation benefits based on alleged disability from exposure to asbestos. Under its current rate plans, CECONY is permitted to defer as regulatory assets (for subsequent recovery through rates) costs incurred for its asbestos lawsuits and workers’ compensation claims. The accrued liability for asbestos suits and workers’ compensation proceedings (including those related to asbestos exposure) and the amounts deferred as regulatory assets for the Companies at December 31, 2014 and 2013 were as follows:
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CECONY [Member]
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| Environmental Matters | Note G – Environmental Matters Superfund Sites Hazardous substances, such as asbestos, polychlorinated biphenyls (PCBs) and coal tar, have been used or generated in the course of operations of the Utilities and their predecessors and are present at sites and in facilities and equipment they currently or previously owned, including sites at which gas was manufactured or stored. The Federal Comprehensive Environmental Response, Compensation and Liability Act of 1980 and similar state statutes (Superfund) impose joint and several liability, regardless of fault, upon generators of hazardous substances for investigation and remediation costs (which include costs of demolition, removal, disposal, storage, replacement, containment, and monitoring) and natural resource damages. Liability under these laws can be material and may be imposed for contamination from past acts, even though such past acts may have been lawful at the time they occurred. The sites at which the Utilities have been asserted to have liability under these laws, including their manufactured gas plant sites and any neighboring areas to which contamination may have migrated, are referred to herein as “Superfund Sites.” For Superfund Sites where there are other potentially responsible parties and the Utilities are not managing the site investigation and remediation, the accrued liability represents an estimate of the amount the Utilities will need to pay to investigate and, where determinable, discharge their related obligations. For Superfund Sites (including the manufactured gas plant sites) for which one of the Utilities is managing the investigation and remediation, the accrued liability represents an estimate of the company’s share of the undiscounted cost to investigate the sites and, for sites that have been investigated in whole or in part, the cost to remediate the sites, if remediation is necessary and if a reasonable estimate of such cost can be made. Remediation costs are estimated in light of the information available, applicable remediation standards and experience with similar sites. The accrued liabilities and regulatory assets related to Superfund Sites at December 31, 2014 and 2013 were as follows:
Most of the accrued Superfund Site liability relates to sites that have been investigated, in whole or in part. However, for some of the sites, the extent and associated cost of the required remediation has not yet been determined. As investigations progress and information pertaining to the required remediation becomes available, the Utilities expect that additional liability may be accrued, the amount of which is not presently determinable but may be material. Con Edison and CECONY estimate that in 2015 they will incur costs for remediation of approximately $39 million and $35 million, respectively. The Companies are unable to estimate the time period over which the remaining accrued liability will be incurred because, among other things, the required remediation has not been determined for some of the sites. Under their current rate plans, the Utilities are permitted to recover or defer as regulatory assets (for subsequent recovery through rates) certain site investigation and remediation costs. Environmental remediation costs incurred and insurance recoveries received related to Superfund Sites at December 31, 2014 and 2013 were as follows:
In 2014, Con Edison and CECONY estimated that for their manufactured gas plant sites (including CECONY’s Astoria site), the aggregate undiscounted potential liability for the investigation and remediation of coal tar and/or other environmental contaminants could range up to $2.7 billion and $2.5 billion, respectively. These estimates were based on the assumption that there is contamination at all sites, including those that have not yet been fully investigated and additional assumptions about the extent of the contamination and the type and extent of the remediation that may be required. Actual experience may be materially different. Asbestos Proceedings Suits have been brought in New York State and federal courts against the Utilities and many other defendants, wherein a large number of plaintiffs sought large amounts of compensatory and punitive damages for deaths and injuries allegedly caused by exposure to asbestos at various premises of the Utilities. The suits that have been resolved, which are many, have been resolved without any payment by the Utilities, or for amounts that were not, in the aggregate, material to them. The amounts specified in all the remaining thousands of suits total billions of dollars; however, the Utilities believe that these amounts are greatly exaggerated, based on the disposition of previous claims. At December 31, 2014 and 2013, Con Edison and CECONY had accrued their estimated aggregate undiscounted potential liabilities for these suits and additional suits that may be brought over the next 15 years of $8 million and $7 million, respectively. The estimates were based upon a combination of modeling, historical data analysis and risk factor assessment. Trial courts have begun, and unless otherwise determined by an appellate court may continue, to apply a different standard for determining liability in asbestos suits than the standard that applied historically. As a result, the Companies currently believe that there is a reasonable possibility of an exposure to loss in excess of the liability accrued for the suits. The Companies are unable to estimate the amount or range of such loss. In addition, certain current and former employees have claimed or are claiming workers’ compensation benefits based on alleged disability from exposure to asbestos. Under its current rate plans, CECONY is permitted to defer as regulatory assets (for subsequent recovery through rates) costs incurred for its asbestos lawsuits and workers’ compensation claims. The accrued liability for asbestos suits and workers’ compensation proceedings (including those related to asbestos exposure) and the amounts deferred as regulatory assets for the Companies at December 31, 2014 and 2013 were as follows:
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- Definition
The entire disclosure for environmental loss contingencies, such as presence of hazardous waste, relevant information from reports issued by regulators, and estimated costs to achieve compliance with regulatory requirements. This element may be used for all of an entity's disclosures about environmental loss contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Other Material Contingencies
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Dec. 31, 2014
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| Other Material Contingencies | Note H – Other Material Contingencies Manhattan Steam Main Rupture In July 2007, a CECONY steam main located in midtown Manhattan ruptured. It has been reported that one person died and others were injured as a result of the incident. Several buildings in the area were damaged. Debris from the incident included dirt and mud containing asbestos. The response to the incident required the closing of several buildings and streets for various periods. Approximately ninety suits are pending against the company seeking generally unspecified compensatory and, in some cases, punitive damages, for personal injury, property damage and business interruption. The company has notified its insurers of the incident and believes that the policies in force at the time of the incident will cover the company’s costs to satisfy its liability to others in connection with the suits. In the company’s estimation, there is not a reasonable possibility that an exposure to loss exists for the suits that is materially in excess of the estimated liability accrued. At December 31, 2014, the company has accrued its estimated liability for the suits of $50 million and an insurance receivable in the same amount. Manhattan Explosion and Fire On March 12, 2014, two multi-use five-story tall buildings located on Park Avenue between 116th and 117th Street in Manhattan were destroyed by an explosion and fire. CECONY had delivered gas to the buildings through service lines from a distribution main located below ground on Park Avenue. Eight people died and more than 48 people were injured. Additional buildings were also damaged. The National Transportation Safety Board is investigating. The parties to the investigation include the company, the City of New York, the Pipeline and Hazardous Materials Safety Administration and the NYSPSC (which is also conducting an investigation). Approximately thirty suits are pending against the company seeking generally unspecified damages and, in one case, punitive damages, for personal injury, property damage and business interruption. The company has notified its insurers of the incident and believes that the policies in force at the time of the incident will cover the company’s costs, in excess of a required retention (the amount of which is not material), to satisfy any liability it may have for damages in connection with the incident. The company is unable to estimate the amount or range of its possible loss related to the incident. At December 31, 2014, the company had not accrued a liability for the incident. Other Contingencies See “Other Regulatory Matters” in Note B. Guarantees Con Edison and its subsidiaries enter into various agreements providing financial or performance assurance primarily to third parties on behalf of their subsidiaries. Maximum amounts guaranteed by Con Edison totaled $2,547 million and $1,331 million at December 31, 2014 and 2013, respectively. A summary, by type and term, of Con Edison’s total guarantees at December 31, 2014 is as follows:
NY Transco – Con Edison has guaranteed payment by its subsidiary, Con Edison Transmission, of the contributions it agreed to make in New York Transco LLC (NY Transco). Con Edison Transmission acquired a 46 percent interest in NY Transco when it was formed in 2014. NY Transco’s transmission projects are expected to be developed initially by CECONY and other New York transmission owners and then sold to NY Transco. The development and sale of the projects would be subject to authorizations from the NYSPSC, FERC and other federal, state and local agencies. Guarantee amount shown is for the maximum possible required amount of Con Edison Transmission’s contributions, which assumed that all the NY Transco projects proposed when NY Transco was formed receive all required regulatory approvals and are completed at 175 percent of their estimated costs and that NY Transco does not use any debt financing for the projects. Guarantee term shown is assumed as the timing of the contributions is not known. Energy Transactions – Con Edison guarantees payments on behalf of its competitive energy businesses in order to facilitate physical and financial transactions in gas, pipeline capacity, transportation, oil, electricity, renewable energy credits and energy services. To the extent that liabilities exist under the contracts subject to these guarantees, such liabilities are included in Con Edison’s consolidated balance sheet. Renewable Electric Production Projects – Con Edison and Con Edison Development guarantee payments associated with the investment in solar and wind energy facilities on behalf of their wholly-owned subsidiaries. In addition, Con Edison Development has entered into two guarantees ($63 million maximum and $31 million maximum, respectively) on behalf of entities (Copper Mountain Solar 2 and Copper Mountain Solar 3, respectively) in which it has a 50 percent interest (see Note Q) in connection with the construction of solar energy facilities. Con Edison Development also provided $3 million in guarantees to Travelers Insurance Company for indemnity agreements for surety bonds in connection with the construction and operation of solar energy facilities performed by its subsidiaries. Other – Other guarantees primarily relate to guarantees provided by Con Edison to Travelers Insurance Company for indemnity agreements for surety bonds in connection with energy service projects performed by Con Edison Solutions ($25 million). In addition, Con Edison issued a guarantee to the Public Utility Commission of Texas covering obligations of Con Edison Solutions as a retail electric provider. Con Edison’s estimate of the maximum potential obligation for this guarantee is $5 million as of December 31, 2014. |
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CECONY [Member]
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| Other Material Contingencies | Note H – Other Material Contingencies Manhattan Steam Main Rupture In July 2007, a CECONY steam main located in midtown Manhattan ruptured. It has been reported that one person died and others were injured as a result of the incident. Several buildings in the area were damaged. Debris from the incident included dirt and mud containing asbestos. The response to the incident required the closing of several buildings and streets for various periods. Approximately ninety suits are pending against the company seeking generally unspecified compensatory and, in some cases, punitive damages, for personal injury, property damage and business interruption. The company has notified its insurers of the incident and believes that the policies in force at the time of the incident will cover the company’s costs to satisfy its liability to others in connection with the suits. In the company’s estimation, there is not a reasonable possibility that an exposure to loss exists for the suits that is materially in excess of the estimated liability accrued. At December 31, 2014, the company has accrued its estimated liability for the suits of $50 million and an insurance receivable in the same amount. Manhattan Explosion and Fire On March 12, 2014, two multi-use five-story tall buildings located on Park Avenue between 116th and 117th Street in Manhattan were destroyed by an explosion and fire. CECONY had delivered gas to the buildings through service lines from a distribution main located below ground on Park Avenue. Eight people died and more than 48 people were injured. Additional buildings were also damaged. The National Transportation Safety Board is investigating. The parties to the investigation include the company, the City of New York, the Pipeline and Hazardous Materials Safety Administration and the NYSPSC (which is also conducting an investigation). Approximately thirty suits are pending against the company seeking generally unspecified damages and, in one case, punitive damages, for personal injury, property damage and business interruption. The company has notified its insurers of the incident and believes that the policies in force at the time of the incident will cover the company’s costs, in excess of a required retention (the amount of which is not material), to satisfy any liability it may have for damages in connection with the incident. The company is unable to estimate the amount or range of its possible loss related to the incident. At December 31, 2014, the company had not accrued a liability for the incident. Other Contingencies See “Other Regulatory Matters” in Note B. Guarantees Con Edison and its subsidiaries enter into various agreements providing financial or performance assurance primarily to third parties on behalf of their subsidiaries. Maximum amounts guaranteed by Con Edison totaled $2,547 million and $1,331 million at December 31, 2014 and 2013, respectively. A summary, by type and term, of Con Edison’s total guarantees at December 31, 2014 is as follows:
NY Transco – Con Edison has guaranteed payment by its subsidiary, Con Edison Transmission, of the contributions it agreed to make in New York Transco LLC (NY Transco). Con Edison Transmission acquired a 46 percent interest in NY Transco when it was formed in 2014. NY Transco’s transmission projects are expected to be developed initially by CECONY and other New York transmission owners and then sold to NY Transco. The development and sale of the projects would be subject to authorizations from the NYSPSC, FERC and other federal, state and local agencies. Guarantee amount shown is for the maximum possible required amount of Con Edison Transmission’s contributions, which assumed that all the NY Transco projects proposed when NY Transco was formed receive all required regulatory approvals and are completed at 175 percent of their estimated costs and that NY Transco does not use any debt financing for the projects. Guarantee term shown is assumed as the timing of the contributions is not known. Energy Transactions – Con Edison guarantees payments on behalf of its competitive energy businesses in order to facilitate physical and financial transactions in gas, pipeline capacity, transportation, oil, electricity, renewable energy credits and energy services. To the extent that liabilities exist under the contracts subject to these guarantees, such liabilities are included in Con Edison’s consolidated balance sheet. Renewable Electric Production Projects – Con Edison and Con Edison Development guarantee payments associated with the investment in solar and wind energy facilities on behalf of their wholly-owned subsidiaries. In addition, Con Edison Development has entered into two guarantees ($63 million maximum and $31 million maximum, respectively) on behalf of entities (Copper Mountain Solar 2 and Copper Mountain Solar 3, respectively) in which it has a 50 percent interest (see Note Q) in connection with the construction of solar energy facilities. Con Edison Development also provided $3 million in guarantees to Travelers Insurance Company for indemnity agreements for surety bonds in connection with the construction and operation of solar energy facilities performed by its subsidiaries. Other – Other guarantees primarily relate to guarantees provided by Con Edison to Travelers Insurance Company for indemnity agreements for surety bonds in connection with energy service projects performed by Con Edison Solutions ($25 million). In addition, Con Edison issued a guarantee to the Public Utility Commission of Texas covering obligations of Con Edison Solutions as a retail electric provider. Con Edison’s estimate of the maximum potential obligation for this guarantee is $5 million as of December 31, 2014. |
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| X | ||||||||||
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- Definition
The entire disclosure for commitments and contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Electricity Purchase Agreements
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Dec. 31, 2014
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| Electricity Purchase Agreements | Note I – Electricity Purchase Agreements CECONY has long-term electricity purchase agreements with non-utility generators and others for generating capacity. The company recovers its purchased power costs in accordance with provisions approved by the NYSPSC. See “Recoverable Energy Costs” in Note A. At December 31, 2014, the significant terms of the electricity purchase agreements were as follows:
Assuming performance by the parties to the electricity purchase agreements, CECONY is obligated over the terms of the agreements to make capacity and other fixed payments. The future capacity and other fixed payments under the contracts are estimated to be as follows:
For energy delivered under most of the electricity purchase agreements, CECONY is obligated to pay variable prices. The company’s payments under the agreements for capacity, energy and other fixed payments in 2014, 2013 and 2012 were as follows:
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CECONY [Member]
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| Electricity Purchase Agreements | Note I – Electricity Purchase Agreements CECONY has long-term electricity purchase agreements with non-utility generators and others for generating capacity. The company recovers its purchased power costs in accordance with provisions approved by the NYSPSC. See “Recoverable Energy Costs” in Note A. At December 31, 2014, the significant terms of the electricity purchase agreements were as follows:
Assuming performance by the parties to the electricity purchase agreements, CECONY is obligated over the terms of the agreements to make capacity and other fixed payments. The future capacity and other fixed payments under the contracts are estimated to be as follows:
For energy delivered under most of the electricity purchase agreements, CECONY is obligated to pay variable prices. The company’s payments under the agreements for capacity, energy and other fixed payments in 2014, 2013 and 2012 were as follows:
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- Definition
The entire disclosure for public utilities. No definition available.
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Leases
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Dec. 31, 2014
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| Leases | Note J – Leases Con Edison’s subsidiaries lease electric transmission facilities, gas distribution facilities, land, office buildings and equipment. In accordance with the accounting rules for leases, these leases are classified as either capital leases or operating leases. Most of the operating leases provide the option to renew at the fair rental value for future periods. Generally, it is expected that leases will be renewed or replaced in the normal course of business. Capital leases: For ratemaking purposes capital leases are treated as operating leases; therefore, in accordance with the accounting rules for regulated operations, the amortization of the leased asset is based on the rental payments recovered from customers. The following assets under capital leases are included in the Companies’ consolidated balance sheets at December 31, 2014 and 2013:
The accumulated amortization of the capital leases for Con Edison and CECONY was $1.8 million and $0.8 million, respectively at December 31, 2014, and $1.0 million and $0.6 million, respectively at December 31, 2013.
The future minimum lease commitments for the above assets are as follows:
Operating leases: The future minimum lease commitments under the Companies’ non-cancelable operating lease agreements are as follows:
Lease In/Lease Out Transactions In each of 1997 and 1999, Con Edison Development entered into transactions in which it leased property and then immediately subleased the properties back to the lessor (termed “Lease In/Lease Out,” or LILO transactions). The transactions respectively involved electric generating and gas distribution facilities in the Netherlands, with a total investment of $259 million. The transactions were financed with $93 million of equity and $166 million of non-recourse, long-term debt secured by the underlying assets. In accordance with the accounting rules for leases, Con Edison accounted for the two LILO transactions as leveraged leases. Accordingly, the company’s investment in these leases, net of non-recourse debt, was carried as a single amount in Con Edison’s consolidated balance sheet and income was recognized pursuant to a method that incorporated a level rate of return for those years when net investment in the lease was positive. At December 31, 2012, the company’s net investment in the LILO transactions was $(76) million, comprised of a $228 million gross investment less $304 million of deferred tax liabilities. During 2013, as discussed below, the company terminated its LILO transactions and at December 31, 2013 no longer had an investment recorded for these leases in its consolidated balance sheet. On audit of Con Edison’s tax returns, the Internal Revenue Service (IRS) disallowed tax losses in connection with the 1997 LILO transactions. In October 2009, the United States Court of Federal Claims issued a decision in favor of the company which, among other things, concluded that the tax losses claimed by the company were allowable. In January 2013, the United States Court of Appeals for the Federal Circuit reversed the October 2009 trial court decision. In June 2013, Con Edison entered into a closing agreement with the IRS regarding the 1997 and 1999 LILO transactions. As a result of the January 2013 Court of Appeals decision, in 2013, Con Edison recorded an after-tax charge of $150 million to reflect, as required by the accounting rules for leveraged lease transactions, the recalculation of the accounting effect of the LILO transactions based on the revised after-tax cash flows projected from the inception of the leveraged leases as well as the interest on the potential tax liability resulting from the disallowance of federal and state income tax losses for the LILO transactions. Also, in 2013, the LILO transactions were terminated, as a result of which the company realized a $55 million gain (after-tax). In 2014, adjustments were made to the interest accrued on the liability and the related taxes resulting in a decrease to net income of $1 million. The effect on Con Edison’s consolidated income statement for the twelve months ended as of December 31, 2014 and 2013 was as follows:
The transactions did not impact earnings in 2012. In January 2013, to defray interest charges, the company deposited $447 million with federal and state tax agencies relating primarily to the potential tax liability from the LILO transactions in past tax years and interest thereon. During 2013, $125 million of the deposit was returned from the IRS at the company’s request. Also in 2013, the deposit balance was reduced by an additional $48 million, due to a $10 million refund from the IRS and the application of $38 million toward the settlement of tax and interest for prior tax years, primarily relating to tax liability from the LILO transactions. In the first quarter of 2014, Con Edison applied the remainder of the deposit against its federal and state tax liabilities, including interest, for other tax years. |
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CECONY [Member]
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| Leases | Note J – Leases Con Edison’s subsidiaries lease electric transmission facilities, gas distribution facilities, land, office buildings and equipment. In accordance with the accounting rules for leases, these leases are classified as either capital leases or operating leases. Most of the operating leases provide the option to renew at the fair rental value for future periods. Generally, it is expected that leases will be renewed or replaced in the normal course of business. Capital leases: For ratemaking purposes capital leases are treated as operating leases; therefore, in accordance with the accounting rules for regulated operations, the amortization of the leased asset is based on the rental payments recovered from customers. The following assets under capital leases are included in the Companies’ consolidated balance sheets at December 31, 2014 and 2013:
The accumulated amortization of the capital leases for Con Edison and CECONY was $1.8 million and $0.8 million, respectively at December 31, 2014, and $1.0 million and $0.6 million, respectively at December 31, 2013.
The future minimum lease commitments for the above assets are as follows:
Operating leases: The future minimum lease commitments under the Companies’ non-cancelable operating lease agreements are as follows:
Lease In/Lease Out Transactions In each of 1997 and 1999, Con Edison Development entered into transactions in which it leased property and then immediately subleased the properties back to the lessor (termed “Lease In/Lease Out,” or LILO transactions). The transactions respectively involved electric generating and gas distribution facilities in the Netherlands, with a total investment of $259 million. The transactions were financed with $93 million of equity and $166 million of non-recourse, long-term debt secured by the underlying assets. In accordance with the accounting rules for leases, Con Edison accounted for the two LILO transactions as leveraged leases. Accordingly, the company’s investment in these leases, net of non-recourse debt, was carried as a single amount in Con Edison’s consolidated balance sheet and income was recognized pursuant to a method that incorporated a level rate of return for those years when net investment in the lease was positive. At December 31, 2012, the company’s net investment in the LILO transactions was $(76) million, comprised of a $228 million gross investment less $304 million of deferred tax liabilities. During 2013, as discussed below, the company terminated its LILO transactions and at December 31, 2013 no longer had an investment recorded for these leases in its consolidated balance sheet. On audit of Con Edison’s tax returns, the Internal Revenue Service (IRS) disallowed tax losses in connection with the 1997 LILO transactions. In October 2009, the United States Court of Federal Claims issued a decision in favor of the company which, among other things, concluded that the tax losses claimed by the company were allowable. In January 2013, the United States Court of Appeals for the Federal Circuit reversed the October 2009 trial court decision. In June 2013, Con Edison entered into a closing agreement with the IRS regarding the 1997 and 1999 LILO transactions. As a result of the January 2013 Court of Appeals decision, in 2013, Con Edison recorded an after-tax charge of $150 million to reflect, as required by the accounting rules for leveraged lease transactions, the recalculation of the accounting effect of the LILO transactions based on the revised after-tax cash flows projected from the inception of the leveraged leases as well as the interest on the potential tax liability resulting from the disallowance of federal and state income tax losses for the LILO transactions. Also, in 2013, the LILO transactions were terminated, as a result of which the company realized a $55 million gain (after-tax). In 2014, adjustments were made to the interest accrued on the liability and the related taxes resulting in a decrease to net income of $1 million. The effect on Con Edison’s consolidated income statement for the twelve months ended as of December 31, 2014 and 2013 was as follows:
The transactions did not impact earnings in 2012. In January 2013, to defray interest charges, the company deposited $447 million with federal and state tax agencies relating primarily to the potential tax liability from the LILO transactions in past tax years and interest thereon. During 2013, $125 million of the deposit was returned from the IRS at the company’s request. Also in 2013, the deposit balance was reduced by an additional $48 million, due to a $10 million refund from the IRS and the application of $38 million toward the settlement of tax and interest for prior tax years, primarily relating to tax liability from the LILO transactions. In the first quarter of 2014, Con Edison applied the remainder of the deposit against its federal and state tax liabilities, including interest, for other tax years. |
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- Definition
The entire disclosure for lessee entity's leasing arrangements including, but not limited to, all of the following: (a.) The basis on which contingent rental payments are determined, (b.) The existence and terms of renewal or purchase options and escalation clauses, (c.) Restrictions imposed by lease agreements, such as those concerning dividends, additional debt, and further leasing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Goodwill
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12 Months Ended |
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Dec. 31, 2014
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| Goodwill | Note K – Goodwill In 2014 and 2013, Con Edison completed impairment tests for its goodwill of $406 million related to the O&R merger, and determined that it was not impaired. For the impairment test, $245 million and $161 million of the goodwill were allocated to CECONY and O&R, respectively. In 2014 and 2013, Con Edison also completed impairment tests for the goodwill of $23 million related to two energy services companies acquired by Con Edison Solutions and a gas storage company acquired by Con Edison Development, and determined that the goodwill was not impaired. Estimates of future cash flows, projected growth rates, and discount rates inherent in the cash flow estimates for the energy services companies and gas storage company may vary significantly from actual results, which could result in a future impairment of goodwill. Prior to 2014, Con Edison performed its annual goodwill impairment test on either January 1 or December 31. During the fourth quarter of 2014, Con Edison changed its annual goodwill impairment testing date from January 1 and December 31 to October 1. This change is preferable under the circumstances as it aligns the timing of the annual goodwill impairment test with the strategic planning and budgeting process, which will allow Con Edison to utilize the updated strategic business plans that result from the budget process in the discounted cash flow analyses that it uses to estimate the fair value of its reporting units. This change does not accelerate, delay, avoid or cause an impairment charge, nor does this change result in adjustments to previously issued financial statements. The annual goodwill impairment testing was performed as of October 1, 2014. Consideration was also given to the period between the testing date and December 31, 2014, in order to conclude that no facts or circumstances have arisen that would lead to a different conclusion as of December 31, 2014. |
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CECONY [Member]
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| Goodwill | Note K – Goodwill In 2014 and 2013, Con Edison completed impairment tests for its goodwill of $406 million related to the O&R merger, and determined that it was not impaired. For the impairment test, $245 million and $161 million of the goodwill were allocated to CECONY and O&R, respectively. In 2014 and 2013, Con Edison also completed impairment tests for the goodwill of $23 million related to two energy services companies acquired by Con Edison Solutions and a gas storage company acquired by Con Edison Development, and determined that the goodwill was not impaired. Estimates of future cash flows, projected growth rates, and discount rates inherent in the cash flow estimates for the energy services companies and gas storage company may vary significantly from actual results, which could result in a future impairment of goodwill. Prior to 2014, Con Edison performed its annual goodwill impairment test on either January 1 or December 31. During the fourth quarter of 2014, Con Edison changed its annual goodwill impairment testing date from January 1 and December 31 to October 1. This change is preferable under the circumstances as it aligns the timing of the annual goodwill impairment test with the strategic planning and budgeting process, which will allow Con Edison to utilize the updated strategic business plans that result from the budget process in the discounted cash flow analyses that it uses to estimate the fair value of its reporting units. This change does not accelerate, delay, avoid or cause an impairment charge, nor does this change result in adjustments to previously issued financial statements. The annual goodwill impairment testing was performed as of October 1, 2014. Consideration was also given to the period between the testing date and December 31, 2014, in order to conclude that no facts or circumstances have arisen that would lead to a different conclusion as of December 31, 2014. |
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- Definition
The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Income Tax
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Dec. 31, 2014
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| Income Tax | Note L – Income Tax The components of income tax are as follows:
The tax effects of temporary differences, which gave rise to deferred tax assets and liabilities, are as follows:
Reconciliation of the difference between income tax expense and the amount computed by applying the prevailing statutory income tax rate to income before income taxes is as follows:
Con Edison has a net operating loss carryforward available from the years 1999 through 2014 for which a deferred tax asset of $21 million has been recognized and will not expire until the years 2019 through 2034. An $11 million valuation allowance for New York City income tax purpose has been provided; as it is not more likely than not that the deferred tax asset will be realized. In September 2013, the IRS issued final regulations, effective in 2014, that provide guidance on the appropriate tax treatment of costs incurred to acquire, produce or improve tangible property, as well as routine maintenance and repair costs. Proposed regulations were issued addressing the tax treatment of asset dispositions. The application of these regulations did not have a material impact on the Companies’ financial position, results of operations or liquidity. In March 2014, tax legislation was enacted in the State of New York that reduced the corporate franchise tax rate from 7.1 percent to 6.5 percent, beginning January 1, 2016. The application of this legislation decreased Con Edison’s accumulated deferred tax liabilities by $74 million ($69 million for CECONY), decreased Con Edison’s regulatory asset for future income tax by $11 million ($10 million for CECONY) and increased Con Edison’s regulatory liability by $62 million ($59 million for CECONY). The impact of this tax legislation on Con Edison’s effective tax rate was not material, and there was no impact on CECONY’s effective tax rate for the year ended December 31, 2014. Under the Taxpayer Relief Act of 2012, 50 percent bonus depreciation expired on December 31, 2013. On December 19, 2014, President Obama signed into law the Tax Increase Prevention Act of 2014, which extended bonus depreciation for another year through December 31, 2014. As a result of the extension of bonus depreciation to 2014, Con Edison filed a refund request with the IRS in January 2015 to recover $224 million ($128 million attributable to CECONY) in estimated federal tax payments. Uncertain Tax Positions Under the accounting rules for income taxes, the Companies are not permitted to recognize the tax benefit attributable to a tax position unless such position is more likely than not to be sustained upon examination by taxing authorities, including resolution of any related appeals and litigation processes, based solely on the technical merits of the position. In 2014 following the conclusion of its IRS audit, Con Edison filed amended state tax returns (primarily New York) for tax years 1998 through 2011. As a result of positions taken on the amended state tax returns, Con Edison increased its estimated liabilities for uncertain tax positions by $27 million ($2 million attributable to CECONY). The amended returns contain uncertain tax positions unique to the states, and the returns remain open for examination. The federal tax returns for 2011 through 2013 remain open for examination. These changes to the Companies’ estimated liabilities for uncertain tax positions had an immaterial impact on income tax expense for the year ended December 31, 2014.
A reconciliation of the beginning and ending amounts of unrecognized tax benefits for Con Edison and CECONY follows:
As of December 31, 2014, Con Edison reasonably expects to resolve approximately $26 million ($17 million, net of federal taxes) of its uncertainties related to certain tax matters within the next twelve months. Favorable resolution would reduce Con Edison’s effective tax rate. The amount related to CECONY is approximately $2 million ($1 million, net of federal taxes), of which the entire amount, if recognized, would reduce CECONY’s effective tax rate. The Companies recognize interest on liabilities for uncertain tax positions in interest expense and would recognize penalties, if any, in operating expenses in the Companies’ consolidated income statements. In 2014 and 2012, the Companies recognized an immaterial amount of interest and no penalties for uncertain tax positions in their consolidated income statements. In 2013, Con Edison recognized $121 million of interest expense ($131 million related to the LILO transactions (see “Lease In/Lease Out Transactions” in Note J), less a reduction of $10 million in accrued interest expense primarily associated with repair allowance deductions and reversing other uncertain tax positions in 2013). At December 31, 2014 and 2013, the Companies recognized an immaterial amount of interest and no penalties in their consolidated balance sheets. At December 31, 2014, the total amount of unrecognized tax benefits that, if recognized, would reduce the Companies’ effective tax rate is $34 million ($22 million, net of federal taxes) with $2 million ($1 million, net of federal taxes) attributable to CECONY. |
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CECONY [Member]
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| Income Tax | Note L – Income Tax The components of income tax are as follows:
The tax effects of temporary differences, which gave rise to deferred tax assets and liabilities, are as follows:
Reconciliation of the difference between income tax expense and the amount computed by applying the prevailing statutory income tax rate to income before income taxes is as follows:
Con Edison has a net operating loss carryforward available from the years 1999 through 2014 for which a deferred tax asset of $21 million has been recognized and will not expire until the years 2019 through 2034. An $11 million valuation allowance for New York City income tax purpose has been provided; as it is not more likely than not that the deferred tax asset will be realized. In September 2013, the IRS issued final regulations, effective in 2014, that provide guidance on the appropriate tax treatment of costs incurred to acquire, produce or improve tangible property, as well as routine maintenance and repair costs. Proposed regulations were issued addressing the tax treatment of asset dispositions. The application of these regulations did not have a material impact on the Companies’ financial position, results of operations or liquidity. In March 2014, tax legislation was enacted in the State of New York that reduced the corporate franchise tax rate from 7.1 percent to 6.5 percent, beginning January 1, 2016. The application of this legislation decreased Con Edison’s accumulated deferred tax liabilities by $74 million ($69 million for CECONY), decreased Con Edison’s regulatory asset for future income tax by $11 million ($10 million for CECONY) and increased Con Edison’s regulatory liability by $62 million ($59 million for CECONY). The impact of this tax legislation on Con Edison’s effective tax rate was not material, and there was no impact on CECONY’s effective tax rate for the year ended December 31, 2014. Under the Taxpayer Relief Act of 2012, 50 percent bonus depreciation expired on December 31, 2013. On December 19, 2014, President Obama signed into law the Tax Increase Prevention Act of 2014, which extended bonus depreciation for another year through December 31, 2014. As a result of the extension of bonus depreciation to 2014, Con Edison filed a refund request with the IRS in January 2015 to recover $224 million ($128 million attributable to CECONY) in estimated federal tax payments. Uncertain Tax Positions Under the accounting rules for income taxes, the Companies are not permitted to recognize the tax benefit attributable to a tax position unless such position is more likely than not to be sustained upon examination by taxing authorities, including resolution of any related appeals and litigation processes, based solely on the technical merits of the position. In 2014 following the conclusion of its IRS audit, Con Edison filed amended state tax returns (primarily New York) for tax years 1998 through 2011. As a result of positions taken on the amended state tax returns, Con Edison increased its estimated liabilities for uncertain tax positions by $27 million ($2 million attributable to CECONY). The amended returns contain uncertain tax positions unique to the states, and the returns remain open for examination. The federal tax returns for 2011 through 2013 remain open for examination. These changes to the Companies’ estimated liabilities for uncertain tax positions had an immaterial impact on income tax expense for the year ended December 31, 2014.
A reconciliation of the beginning and ending amounts of unrecognized tax benefits for Con Edison and CECONY follows:
As of December 31, 2014, Con Edison reasonably expects to resolve approximately $26 million ($17 million, net of federal taxes) of its uncertainties related to certain tax matters within the next twelve months. Favorable resolution would reduce Con Edison’s effective tax rate. The amount related to CECONY is approximately $2 million ($1 million, net of federal taxes), of which the entire amount, if recognized, would reduce CECONY’s effective tax rate. The Companies recognize interest on liabilities for uncertain tax positions in interest expense and would recognize penalties, if any, in operating expenses in the Companies’ consolidated income statements. In 2014 and 2012, the Companies recognized an immaterial amount of interest and no penalties for uncertain tax positions in their consolidated income statements. In 2013, Con Edison recognized $121 million of interest expense ($131 million related to the LILO transactions (see “Lease In/Lease Out Transactions” in Note J), less a reduction of $10 million in accrued interest expense primarily associated with repair allowance deductions and reversing other uncertain tax positions in 2013). At December 31, 2014 and 2013, the Companies recognized an immaterial amount of interest and no penalties in their consolidated balance sheets. At December 31, 2014, the total amount of unrecognized tax benefits that, if recognized, would reduce the Companies’ effective tax rate is $34 million ($22 million, net of federal taxes) with $2 million ($1 million, net of federal taxes) attributable to CECONY. |
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| X | ||||||||||
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- Definition
The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Stock-Based Compensation
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Dec. 31, 2014
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| Stock-Based Compensation | Note M – Stock-Based Compensation The Companies may compensate employees and directors with, among other things, stock options, stock units, restricted stock units and contributions to the stock purchase plan. The Long Term Incentive Plan, which was approved by Con Edison’s shareholders in 2003 (2003 LTIP), and the Long Term Incentive Plan, which was approved by Con Edison’s shareholders in 2013 (2013 LTIP), are collectively referred to herein as the LTIP. The LTIP provides for, among other things, awards to employees of restricted stock units and stock options and, to Con Edison’s non-employee directors, stock units. Existing awards under the 2003 LTIP continue in effect, however no new awards may be issued under the 2003 LTIP. The 2013 LTIP provides for awards for up to five million shares of common stock. Shares of Con Edison common stock used to satisfy the Companies’ obligations with respect to stock-based compensation may be new (authorized, but unissued) shares, treasury shares or shares purchased in the open market. The Companies intend to use treasury shares and new shares to fulfill their stock-based compensation obligations for 2015. Under the accounting rules for stock compensation, the Companies have recognized the cost of stock-based compensation as an expense using a fair value measurement method. The following table summarizes stock-based compensation expense recognized by the Companies in the years ended December 31, 2014, 2013 and 2012:
Stock Options The Companies last granted stock options in 2006. The stock options generally vested over a three-year period and have a term of 10 years. Options were granted at an exercise price equal to the fair market value of a common share when the option was granted. The Companies generally recognized compensation expense (based on the fair value of stock option awards) over the vesting period. The outstanding options are “equity awards” because shares of Con Edison common stock are delivered upon exercise of the options. As equity awards, the fair value of the options is measured at the grant date. A summary of changes in the status of stock options as of December 31, 2014 is as follows:
Note: The weighted average remaining contractual life is one year for all outstanding options as of 12/31/14.
The following table summarizes information about stock options for the years ended December 31, 2014 and 2013:
The income tax benefit Con Edison realized from stock options exercised in the years ended December 31, 2014, 2013 and 2012 was $1 million, $10 million and an immaterial amount, respectively. Restricted Stock and Stock Units Restricted stock and stock unit awards under the LTIP have been made as follows: (i) awards that provide for adjustment of the number of units (performance-restricted stock units or Performance RSUs) to certain officers and employees; (ii) time-based awards to certain employees; and (iii) awards to non-employee directors. Restricted stock and stock units awarded represents the right to receive, upon vesting, shares of Con Edison common stock, or, except for units awarded under the directors’ plan, the cash value of shares or a combination thereof. The number of units in each annual Performance RSU award is subject to adjustment as follows: (i) 50 percent of the units awarded will be multiplied by a factor that may range from 0 to 200 percent, based on Con Edison’s total shareholder return relative to a specified peer group during a specified performance period (the TSR portion); and (ii) 50 percent of the units awarded will be multiplied by a factor that may range from 0 to 120 percent for management employees and from 0 to 200 percent, based on determinations made in connection with the Companies’ annual incentive plans or, for certain executive officers, actual performance as compared to certain performance measures during a specified performance period (the non-TSR portion). Performance RSU awards generally vest upon completion of the performance period. Performance against the established targets is recomputed each reporting period as of the earlier of the reporting date and the vesting date. The TSR portion applies a Monte Carlo simulation model, and the non-TSR portion is the product of the market price at the end of the period multiplied by the average non-TSR determination over the vesting period. Performance RSUs are “liability awards” because each Performance RSU represents the right to receive, upon vesting, one share of Con Edison common stock, the cash value of a share or a combination thereof. As such, changes in the fair value of the Performance RSUs are reflected in net income. The following table illustrates the assumptions used to calculate the fair value of the awards:
A summary of changes in the status of the Performance RSUs’ TSR and non-TSR portions during the year ended December 31, 2014 is as follows:
The total expense to be recognized by Con Edison in future periods for unvested Performance RSUs outstanding as of December 31, 2014 is $25 million, including $19 million for CECONY and is expected to be recognized over a weighted average period of one year for both Con Edison and CECONY. In accordance with the accounting rules for stock compensation, for time-based awards, the Companies have accrued a liability based on the market value of a common share on the grant date and are recognizing compensation expense over the vesting period. The vesting period for awards is three years and is based on the employee’s continuous service to Con Edison. Prior to vesting, the awards are subject to forfeiture in whole or in part under certain circumstances. The awards are “liability awards” because each restricted stock unit represents the right to receive, upon vesting, one share of Con Edison common stock, the cash value of a share or a combination thereof. As such, prior to vesting, changes in the fair value of the units are reflected in net income. A summary of changes in the status of time-based awards during the year ended December 31, 2014 is as follows:
The total expense to be recognized by Con Edison in future periods for unvested time-based awards outstanding as of December 31, 2014 for Con Edison was $2 million, including $2 million for CECONY, and is expected to be recognized over a weighted average period of one year. Under the LTIP, each non-employee director receives stock units, which are deferred until the director’s separation from service or another date specified by the director. Each director may also elect to defer all or a portion of their cash compensation into additional stock units, which are deferred until the director’s termination of service or another date specified by the director. Non-employee directors’ stock units issued under the LTIP are considered “equity awards,” because they may only be settled in shares. Directors immediately vest in units issued to them. The fair value of the units is determined using the closing price of Con Edison’s common stock on the business day immediately preceding the date of issue. In the year ended December 31, 2014, approximately 37,972 units were issued at a weighted average grant date price of $55.51. Stock Purchase Plan The Stock Purchase Plan, which was approved by shareholders in 2004 and 2014, provides for the Companies to contribute up to $1 for each $9 invested by their directors, officers or employees to purchase Con Edison common stock under the plan. Eligible participants may invest up to $25,000 during any calendar year (subject to an additional limitation for officers and employees of not more than 20 percent of their pay). Dividends paid on shares held under the plan are reinvested in additional shares unless otherwise directed by the participant. Participants in the plan immediately vest in shares purchased by them under the plan. The fair value of the shares of Con Edison common stock purchased under the plan was calculated using the average of the high and low composite sale prices at which shares were traded at the New York Stock Exchange on the trading day immediately preceding such purchase dates. During 2014, 2013 and 2012, 708,276, 864,281 and 665,718 shares were purchased under the Stock Purchase Plan at a weighted average price of $56.23, $57.24 and $59.72 per share, respectively. |
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CECONY [Member]
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| Stock-Based Compensation | Note M – Stock-Based Compensation The Companies may compensate employees and directors with, among other things, stock options, stock units, restricted stock units and contributions to the stock purchase plan. The Long Term Incentive Plan, which was approved by Con Edison’s shareholders in 2003 (2003 LTIP), and the Long Term Incentive Plan, which was approved by Con Edison’s shareholders in 2013 (2013 LTIP), are collectively referred to herein as the LTIP. The LTIP provides for, among other things, awards to employees of restricted stock units and stock options and, to Con Edison’s non-employee directors, stock units. Existing awards under the 2003 LTIP continue in effect, however no new awards may be issued under the 2003 LTIP. The 2013 LTIP provides for awards for up to five million shares of common stock. Shares of Con Edison common stock used to satisfy the Companies’ obligations with respect to stock-based compensation may be new (authorized, but unissued) shares, treasury shares or shares purchased in the open market. The Companies intend to use treasury shares and new shares to fulfill their stock-based compensation obligations for 2015. Under the accounting rules for stock compensation, the Companies have recognized the cost of stock-based compensation as an expense using a fair value measurement method. The following table summarizes stock-based compensation expense recognized by the Companies in the years ended December 31, 2014, 2013 and 2012:
Stock Options The Companies last granted stock options in 2006. The stock options generally vested over a three-year period and have a term of 10 years. Options were granted at an exercise price equal to the fair market value of a common share when the option was granted. The Companies generally recognized compensation expense (based on the fair value of stock option awards) over the vesting period. The outstanding options are “equity awards” because shares of Con Edison common stock are delivered upon exercise of the options. As equity awards, the fair value of the options is measured at the grant date. A summary of changes in the status of stock options as of December 31, 2014 is as follows:
Note: The weighted average remaining contractual life is one year for all outstanding options as of 12/31/14.
The following table summarizes information about stock options for the years ended December 31, 2014 and 2013:
The income tax benefit Con Edison realized from stock options exercised in the years ended December 31, 2014, 2013 and 2012 was $1 million, $10 million and an immaterial amount, respectively. Restricted Stock and Stock Units Restricted stock and stock unit awards under the LTIP have been made as follows: (i) awards that provide for adjustment of the number of units (performance-restricted stock units or Performance RSUs) to certain officers and employees; (ii) time-based awards to certain employees; and (iii) awards to non-employee directors. Restricted stock and stock units awarded represents the right to receive, upon vesting, shares of Con Edison common stock, or, except for units awarded under the directors’ plan, the cash value of shares or a combination thereof. The number of units in each annual Performance RSU award is subject to adjustment as follows: (i) 50 percent of the units awarded will be multiplied by a factor that may range from 0 to 200 percent, based on Con Edison’s total shareholder return relative to a specified peer group during a specified performance period (the TSR portion); and (ii) 50 percent of the units awarded will be multiplied by a factor that may range from 0 to 120 percent for management employees and from 0 to 200 percent, based on determinations made in connection with the Companies’ annual incentive plans or, for certain executive officers, actual performance as compared to certain performance measures during a specified performance period (the non-TSR portion). Performance RSU awards generally vest upon completion of the performance period. Performance against the established targets is recomputed each reporting period as of the earlier of the reporting date and the vesting date. The TSR portion applies a Monte Carlo simulation model, and the non-TSR portion is the product of the market price at the end of the period multiplied by the average non-TSR determination over the vesting period. Performance RSUs are “liability awards” because each Performance RSU represents the right to receive, upon vesting, one share of Con Edison common stock, the cash value of a share or a combination thereof. As such, changes in the fair value of the Performance RSUs are reflected in net income. The following table illustrates the assumptions used to calculate the fair value of the awards:
A summary of changes in the status of the Performance RSUs’ TSR and non-TSR portions during the year ended December 31, 2014 is as follows:
The total expense to be recognized by Con Edison in future periods for unvested Performance RSUs outstanding as of December 31, 2014 is $25 million, including $19 million for CECONY and is expected to be recognized over a weighted average period of one year for both Con Edison and CECONY. In accordance with the accounting rules for stock compensation, for time-based awards, the Companies have accrued a liability based on the market value of a common share on the grant date and are recognizing compensation expense over the vesting period. The vesting period for awards is three years and is based on the employee’s continuous service to Con Edison. Prior to vesting, the awards are subject to forfeiture in whole or in part under certain circumstances. The awards are “liability awards” because each restricted stock unit represents the right to receive, upon vesting, one share of Con Edison common stock, the cash value of a share or a combination thereof. As such, prior to vesting, changes in the fair value of the units are reflected in net income. A summary of changes in the status of time-based awards during the year ended December 31, 2014 is as follows:
The total expense to be recognized by Con Edison in future periods for unvested time-based awards outstanding as of December 31, 2014 for Con Edison was $2 million, including $2 million for CECONY, and is expected to be recognized over a weighted average period of one year. Under the LTIP, each non-employee director receives stock units, which are deferred until the director’s separation from service or another date specified by the director. Each director may also elect to defer all or a portion of their cash compensation into additional stock units, which are deferred until the director’s termination of service or another date specified by the director. Non-employee directors’ stock units issued under the LTIP are considered “equity awards,” because they may only be settled in shares. Directors immediately vest in units issued to them. The fair value of the units is determined using the closing price of Con Edison’s common stock on the business day immediately preceding the date of issue. In the year ended December 31, 2014, approximately 37,972 units were issued at a weighted average grant date price of $55.51. Stock Purchase Plan The Stock Purchase Plan, which was approved by shareholders in 2004 and 2014, provides for the Companies to contribute up to $1 for each $9 invested by their directors, officers or employees to purchase Con Edison common stock under the plan. Eligible participants may invest up to $25,000 during any calendar year (subject to an additional limitation for officers and employees of not more than 20 percent of their pay). Dividends paid on shares held under the plan are reinvested in additional shares unless otherwise directed by the participant. Participants in the plan immediately vest in shares purchased by them under the plan. The fair value of the shares of Con Edison common stock purchased under the plan was calculated using the average of the high and low composite sale prices at which shares were traded at the New York Stock Exchange on the trading day immediately preceding such purchase dates. During 2014, 2013 and 2012, 708,276, 864,281 and 665,718 shares were purchased under the Stock Purchase Plan at a weighted average price of $56.23, $57.24 and $59.72 per share, respectively. |
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| X | ||||||||||
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- Definition
The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Financial Information by Business Segment
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Dec. 31, 2014
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| Financial Information by Business Segment | Note N – Financial Information by Business Segment The business segments of each of the Companies, which are its operating segments, were determined based on management’s reporting and decision-making requirements in accordance with the accounting rules for segment reporting. Con Edison’s principal business segments are CECONY’s regulated utility activities, O&R’s regulated utility activities and Con Edison’s competitive energy businesses. CECONY’s principal business segments are its regulated electric, gas and steam utility activities. All revenues of these business segments are from customers located in the United States of America. Also, all assets of the business segments are located in the United States of America. The accounting policies of the segments are the same as those described in Note A. Common services shared by the business segments are assigned directly or allocated based on various cost factors, depending on the nature of the service provided.
The financial data for the business segments are as follows:
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CECONY [Member]
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| Financial Information by Business Segment | Note N – Financial Information by Business Segment The business segments of each of the Companies, which are its operating segments, were determined based on management’s reporting and decision-making requirements in accordance with the accounting rules for segment reporting. Con Edison’s principal business segments are CECONY’s regulated utility activities, O&R’s regulated utility activities and Con Edison’s competitive energy businesses. CECONY’s principal business segments are its regulated electric, gas and steam utility activities. All revenues of these business segments are from customers located in the United States of America. Also, all assets of the business segments are located in the United States of America. The accounting policies of the segments are the same as those described in Note A. Common services shared by the business segments are assigned directly or allocated based on various cost factors, depending on the nature of the service provided.
The financial data for the business segments are as follows:
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| X | ||||||||||
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- Definition
The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Derivative Instruments and Hedging Activities
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Dec. 31, 2014
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| Derivative Instruments and Hedging Activities | Note O – Derivative Instruments and Hedging Activities Con Edison’s subsidiaries hedge market price fluctuations associated with physical purchases and sales of electricity, natural gas and steam by using derivative instruments including futures, forwards, basis swaps, options, transmission congestion contracts and financial transmission rights contracts. Derivatives are recognized on the balance sheet at fair value (See Note P), unless an exception is available under the accounting rules for derivatives and hedging. Qualifying derivative contracts that have been designated as normal purchases or normal sales contracts are not reported at fair value under the accounting rules.
The fair values of the Companies’ commodity derivatives including the offsetting of assets and liabilities on the consolidated balance sheet at December 31, 2014 and 2013 were:
The Utilities generally recover their prudently incurred fuel, purchased power and gas costs, including hedging gains and losses, in accordance with rate provisions approved by the applicable state utility regulators. See “Recoverable Energy Costs” in Note A. In accordance with the accounting rules for regulated operations, the Utilities record a regulatory asset or liability to defer recognition of unrealized gains and losses on their electric and gas derivatives. As gains and losses are realized in future periods, they will be recognized as purchased power, gas and fuel costs in the Companies’ consolidated income statements. Con Edison’s competitive energy businesses record realized and unrealized gains and losses on their derivative contracts in purchased power, gas purchased for resale and non-utility revenue in the reporting period in which they occur. Management believes that these derivative instruments represent economic hedges that mitigate exposure to fluctuations in commodity prices.
The following table presents the realized and unrealized gains or losses on commodity derivatives that have been deferred or recognized in earnings for the years ended December 31, 2014 and 2013:
The following table presents the hedged volume of Con Edison’s and CECONY’s derivative transactions at December 31, 2014:
The Companies are exposed to credit risk related to transactions entered into primarily for the various energy supply and hedging activities by the Utilities and the competitive energy businesses. Credit risk relates to the loss that may result from a counterparty’s nonperformance. The Companies use credit policies to manage this risk, including an established credit approval process, monitoring of counterparty limits, netting provisions within agreements, collateral or prepayment arrangements, credit insurance and credit default swaps. The Companies measure credit risk exposure as the replacement cost for open energy commodity and derivative positions plus amounts owed from counterparties for settled transactions. The replacement cost of open positions represents unrealized gains, net of any unrealized losses where the Companies have a legally enforceable right of setoff. At December 31, 2014, Con Edison and CECONY had $148 million and $25 million of credit exposure in connection with energy supply and hedging activities, net of collateral, respectively. Con Edison’s net credit exposure consisted of $79 million with commodity exchange brokers, $45 million with independent system operators, $20 million with investment-grade counterparties and $4 million with non-investment grade/non-rated counterparties. CECONY’s net credit exposure was with commodity exchange brokers. The collateral requirements associated with, and settlement of, derivative transactions are included in net cash flows from operating activities in the Companies’ consolidated statement of cash flows. Most derivative instrument contracts contain provisions that may require a party to provide collateral on its derivative instruments that are in a net liability position. The amount of collateral to be provided will depend on the fair value of the derivative instruments and the party’s credit ratings. The following table presents the aggregate fair value of the Companies’ derivative instruments with credit-risk-related contingent features that are in a net liability position, the collateral posted for such positions and the additional collateral that would have been required to be posted had the lowest applicable credit rating been reduced one level and to below investment grade at December 31, 2014:
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CECONY [Member]
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| Derivative Instruments and Hedging Activities | Note O – Derivative Instruments and Hedging Activities Con Edison’s subsidiaries hedge market price fluctuations associated with physical purchases and sales of electricity, natural gas and steam by using derivative instruments including futures, forwards, basis swaps, options, transmission congestion contracts and financial transmission rights contracts. Derivatives are recognized on the balance sheet at fair value (See Note P), unless an exception is available under the accounting rules for derivatives and hedging. Qualifying derivative contracts that have been designated as normal purchases or normal sales contracts are not reported at fair value under the accounting rules.
The fair values of the Companies’ commodity derivatives including the offsetting of assets and liabilities on the consolidated balance sheet at December 31, 2014 and 2013 were:
The Utilities generally recover their prudently incurred fuel, purchased power and gas costs, including hedging gains and losses, in accordance with rate provisions approved by the applicable state utility regulators. See “Recoverable Energy Costs” in Note A. In accordance with the accounting rules for regulated operations, the Utilities record a regulatory asset or liability to defer recognition of unrealized gains and losses on their electric and gas derivatives. As gains and losses are realized in future periods, they will be recognized as purchased power, gas and fuel costs in the Companies’ consolidated income statements. Con Edison’s competitive energy businesses record realized and unrealized gains and losses on their derivative contracts in purchased power, gas purchased for resale and non-utility revenue in the reporting period in which they occur. Management believes that these derivative instruments represent economic hedges that mitigate exposure to fluctuations in commodity prices.
The following table presents the realized and unrealized gains or losses on commodity derivatives that have been deferred or recognized in earnings for the years ended December 31, 2014 and 2013:
The following table presents the hedged volume of Con Edison’s and CECONY’s derivative transactions at December 31, 2014:
The Companies are exposed to credit risk related to transactions entered into primarily for the various energy supply and hedging activities by the Utilities and the competitive energy businesses. Credit risk relates to the loss that may result from a counterparty’s nonperformance. The Companies use credit policies to manage this risk, including an established credit approval process, monitoring of counterparty limits, netting provisions within agreements, collateral or prepayment arrangements, credit insurance and credit default swaps. The Companies measure credit risk exposure as the replacement cost for open energy commodity and derivative positions plus amounts owed from counterparties for settled transactions. The replacement cost of open positions represents unrealized gains, net of any unrealized losses where the Companies have a legally enforceable right of setoff. At December 31, 2014, Con Edison and CECONY had $148 million and $25 million of credit exposure in connection with energy supply and hedging activities, net of collateral, respectively. Con Edison’s net credit exposure consisted of $79 million with commodity exchange brokers, $45 million with independent system operators, $20 million with investment-grade counterparties and $4 million with non-investment grade/non-rated counterparties. CECONY’s net credit exposure was with commodity exchange brokers. The collateral requirements associated with, and settlement of, derivative transactions are included in net cash flows from operating activities in the Companies’ consolidated statement of cash flows. Most derivative instrument contracts contain provisions that may require a party to provide collateral on its derivative instruments that are in a net liability position. The amount of collateral to be provided will depend on the fair value of the derivative instruments and the party’s credit ratings. The following table presents the aggregate fair value of the Companies’ derivative instruments with credit-risk-related contingent features that are in a net liability position, the collateral posted for such positions and the additional collateral that would have been required to be posted had the lowest applicable credit rating been reduced one level and to below investment grade at December 31, 2014:
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- Definition
The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Fair Value Measurements
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| Fair Value Measurements | Note P – Fair Value Measurements The accounting rules for fair value measurements and disclosures define fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date in a principal or most advantageous market. Fair value is a market-based measurement that is determined based on inputs, which refer broadly to assumptions that market participants use in pricing assets or liabilities. These inputs can be readily observable, market corroborated, or generally unobservable firm inputs. The Companies often make certain assumptions that market participants would use in pricing the asset or liability, including assumptions about risk, and the risks inherent in the inputs to valuation techniques. The Companies use valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. The accounting rules for fair value measurements and disclosures established a fair value hierarchy, which prioritizes the inputs to valuation techniques used to measure fair value in three broad levels. The rules require that assets and liabilities be classified in their entirety based on the level of input that is significant to the fair value measurement. Assessing the significance of a particular input may require judgment considering factors specific to the asset or liability, and may affect the valuation of the asset or liability and their placement within the fair value hierarchy. The Companies classify fair value balances based on the fair value hierarchy defined by the accounting rules for fair value measurements and disclosures as follows:
Assets and liabilities measured at fair value on a recurring basis for the years ended December 31, 2014 and 2013 are summarized below.
The employees in the Companies’ risk management group develop and maintain the Companies’ valuation policies and procedures for, and verify pricing and fair value valuation of, commodity derivatives. Under the Companies’ policies and procedures, multiple independent sources of information are obtained for forward price curves used to value commodity derivatives. Fair value and changes in fair value of commodity derivatives are reported on a monthly basis to the Companies’ risk committees, comprised of officers and employees of the Companies that oversee energy hedging at the Utilities and the competitive energy businesses. The risk management group reports to the Companies’ Vice President and Treasurer.
The table listed below provides a reconciliation of the beginning and ending net balances for assets and liabilities measured at fair value for the years ended December 31, 2014 and 2013 and classified as Level 3 in the fair value hierarchy:
For the Utilities, realized gains and losses on Level 3 commodity derivative assets and liabilities are reported as part of purchased power, gas and fuel costs. The Utilities generally recover these costs in accordance with rate provisions approved by the applicable state public utilities regulators. See Note A. Unrealized gains and losses for commodity derivatives are generally deferred on the consolidated balance sheet in accordance with the accounting rules for regulated operations. For the competitive energy businesses, realized and unrealized gains and losses on Level 3 commodity derivative assets and liabilities are reported in non-utility revenues (immaterial and $2 million loss) and purchased power costs ($27 million gain and $5 million gain) on the consolidated income statement for the years ended December 31, 2014 and 2013, respectively. The change in fair value relating to Level 3 commodity derivative assets and liabilities held at December 31, 2014 and 2013 is included in non-utility revenues (immaterial and $2 million loss) and purchased power costs ($2 million gain and $3 million gain) on the consolidated income statement for the years ended December 31, 2014 and 2013, respectively. |
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CECONY [Member]
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| Fair Value Measurements | Note P – Fair Value Measurements The accounting rules for fair value measurements and disclosures define fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date in a principal or most advantageous market. Fair value is a market-based measurement that is determined based on inputs, which refer broadly to assumptions that market participants use in pricing assets or liabilities. These inputs can be readily observable, market corroborated, or generally unobservable firm inputs. The Companies often make certain assumptions that market participants would use in pricing the asset or liability, including assumptions about risk, and the risks inherent in the inputs to valuation techniques. The Companies use valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. The accounting rules for fair value measurements and disclosures established a fair value hierarchy, which prioritizes the inputs to valuation techniques used to measure fair value in three broad levels. The rules require that assets and liabilities be classified in their entirety based on the level of input that is significant to the fair value measurement. Assessing the significance of a particular input may require judgment considering factors specific to the asset or liability, and may affect the valuation of the asset or liability and their placement within the fair value hierarchy. The Companies classify fair value balances based on the fair value hierarchy defined by the accounting rules for fair value measurements and disclosures as follows:
Assets and liabilities measured at fair value on a recurring basis for the years ended December 31, 2014 and 2013 are summarized below.
The employees in the Companies’ risk management group develop and maintain the Companies’ valuation policies and procedures for, and verify pricing and fair value valuation of, commodity derivatives. Under the Companies’ policies and procedures, multiple independent sources of information are obtained for forward price curves used to value commodity derivatives. Fair value and changes in fair value of commodity derivatives are reported on a monthly basis to the Companies’ risk committees, comprised of officers and employees of the Companies that oversee energy hedging at the Utilities and the competitive energy businesses. The risk management group reports to the Companies’ Vice President and Treasurer.
The table listed below provides a reconciliation of the beginning and ending net balances for assets and liabilities measured at fair value for the years ended December 31, 2014 and 2013 and classified as Level 3 in the fair value hierarchy:
For the Utilities, realized gains and losses on Level 3 commodity derivative assets and liabilities are reported as part of purchased power, gas and fuel costs. The Utilities generally recover these costs in accordance with rate provisions approved by the applicable state public utilities regulators. See Note A. Unrealized gains and losses for commodity derivatives are generally deferred on the consolidated balance sheet in accordance with the accounting rules for regulated operations. For the competitive energy businesses, realized and unrealized gains and losses on Level 3 commodity derivative assets and liabilities are reported in non-utility revenues (immaterial and $2 million loss) and purchased power costs ($27 million gain and $5 million gain) on the consolidated income statement for the years ended December 31, 2014 and 2013, respectively. The change in fair value relating to Level 3 commodity derivative assets and liabilities held at December 31, 2014 and 2013 is included in non-utility revenues (immaterial and $2 million loss) and purchased power costs ($2 million gain and $3 million gain) on the consolidated income statement for the years ended December 31, 2014 and 2013, respectively. |
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- Definition
The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Variable Interest Entities
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Dec. 31, 2014
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| Variable Interest Entities | Note Q – Variable Interest Entities The accounting rules for consolidation address the consolidation of a variable interest entity (VIE) by a business enterprise that is the primary beneficiary. A VIE is an entity that does not have a sufficient equity investment at risk to permit it to finance its activities without additional subordinated financial support, or whose equity investors lack the characteristics of a controlling financial interest. The primary beneficiary is the business enterprise that has the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and either absorbs a significant amount of the VIE’s losses or has the right to receive benefits that could be significant to the VIE. Con Edison enters into arrangements including leases, partnerships and electricity purchase agreements, with various entities. As a result of these arrangements, Con Edison retains or may retain a variable interest in these entities. CECONY CECONY has a variable interest in a non-consolidated VIE, Astoria Energy, LLC (Astoria Energy), with which CECONY has entered into a long-term electricity purchase agreement. CECONY is not the primary beneficiary of this VIE since CECONY does not have the power to direct activities that CECONY believes most significantly impact the economic performance of Astoria Energy. In particular, CECONY has not invested in, or guaranteed the indebtedness of, Astoria Energy and CECONY does not operate or maintain Astoria Energy’s generating facilities. CECONY also has long-term electricity purchase agreements with the following three potential VIEs: Cogen Technologies Linden Venture, LP, Brooklyn Navy Yard Cogeneration Partners, LP and Indeck Energy Services of Corinth, Inc. In 2014, requests were made of these three counterparties for information necessary to determine whether the entity was a VIE and whether CECONY is the primary beneficiary; however, the information was not made available. See Note I for information on these electricity purchase agreements, the payments pursuant to which constitute CECONY’s maximum exposure to loss with respect to the potential VIEs. Con Edison Development Con Edison has a variable interest in Copper Mountain Solar 3 Holdings, LLC (Copper Mountain Solar 3), which is a non-consolidated entity in which Con Edison Development purchased a 50 percent membership interest in 2014. Copper Mountain Solar 3 owns a project company that is developing a 250 MW (AC) solar electric production project in Nevada. Electricity generated by the project is to be sold to the Southern California Public Power Authority pursuant to a long-term power purchase agreement. In addition, Con Edison and Con Edison Development have issued certain guarantees to third parties in connection with Copper Mountain Solar 3. See “Guarantees” in Note H. Con Edison has a variable interest in CED California Holdings Financing I, LLC (California Solar), which is no longer a consolidated entity. Con Edison Development sold 50 percent of its membership interest in California Solar which was previously a wholly-owned subsidiary in 2014. California Solar owns project companies that operate 110 MW (AC) of solar electric production projects in California. Electricity generated by the projects is sold to Pacific Gas and Electric Company pursuant to long-term power purchase agreements. Subsequent to the sale, Con Edison Development’s remaining 50 percent interest in California Solar is accounted for under the equity method. As a result of the sale, Con Edison Development received net proceeds of $108 million and recognized a pre-tax gain on the sale of $45 million ($26 million, net of tax). The following table summarizes the sale and resultant deconsolidation on the transaction date:
Con Edison has a variable interest in OCI Solar San Antonio 4 LLC (Texas Solar 4), which is a consolidated entity in which Con Edison Development purchased an 80 percent membership interest in 2014 for $49 million. Texas Solar 4 owns a project company that developed a 40 MW (AC) solar electric production project in Texas. Electricity generated by the project is sold to the City of San Antonio pursuant to a long-term power purchase agreement. At December 31, 2014, Con Edison’s consolidated balance sheet includes $58 million in net assets (as detailed in the table below) and the non-controlling interest of the third party of $9 million related to Texas Solar 4. Earnings for the twelve months ended December 31, 2014 were immaterial.
Con Edison has a variable interest in Broken Bow II Wind Holdings, LLC (Broken Bow II), which is a non-consolidated entity in which Con Edison Development purchased a 50 percent membership interest in 2014. Broken Bow II owns a project company that developed a 75 MW (AC) wind electric production project in Nebraska. Electricity generated by the project is sold to Nebraska Public Power District pursuant to a long-term power purchase agreement.
The following table summarizes the VIEs in which Con Edison Development has entered into as of December 31, 2014:
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CECONY [Member]
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| Variable Interest Entities | Note Q – Variable Interest Entities The accounting rules for consolidation address the consolidation of a variable interest entity (VIE) by a business enterprise that is the primary beneficiary. A VIE is an entity that does not have a sufficient equity investment at risk to permit it to finance its activities without additional subordinated financial support, or whose equity investors lack the characteristics of a controlling financial interest. The primary beneficiary is the business enterprise that has the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and either absorbs a significant amount of the VIE’s losses or has the right to receive benefits that could be significant to the VIE. Con Edison enters into arrangements including leases, partnerships and electricity purchase agreements, with various entities. As a result of these arrangements, Con Edison retains or may retain a variable interest in these entities. CECONY CECONY has a variable interest in a non-consolidated VIE, Astoria Energy, LLC (Astoria Energy), with which CECONY has entered into a long-term electricity purchase agreement. CECONY is not the primary beneficiary of this VIE since CECONY does not have the power to direct activities that CECONY believes most significantly impact the economic performance of Astoria Energy. In particular, CECONY has not invested in, or guaranteed the indebtedness of, Astoria Energy and CECONY does not operate or maintain Astoria Energy’s generating facilities. CECONY also has long-term electricity purchase agreements with the following three potential VIEs: Cogen Technologies Linden Venture, LP, Brooklyn Navy Yard Cogeneration Partners, LP and Indeck Energy Services of Corinth, Inc. In 2014, requests were made of these three counterparties for information necessary to determine whether the entity was a VIE and whether CECONY is the primary beneficiary; however, the information was not made available. See Note I for information on these electricity purchase agreements, the payments pursuant to which constitute CECONY’s maximum exposure to loss with respect to the potential VIEs. Con Edison Development Con Edison has a variable interest in Copper Mountain Solar 3 Holdings, LLC (Copper Mountain Solar 3), which is a non-consolidated entity in which Con Edison Development purchased a 50 percent membership interest in 2014. Copper Mountain Solar 3 owns a project company that is developing a 250 MW (AC) solar electric production project in Nevada. Electricity generated by the project is to be sold to the Southern California Public Power Authority pursuant to a long-term power purchase agreement. In addition, Con Edison and Con Edison Development have issued certain guarantees to third parties in connection with Copper Mountain Solar 3. See “Guarantees” in Note H. Con Edison has a variable interest in CED California Holdings Financing I, LLC (California Solar), which is no longer a consolidated entity. Con Edison Development sold 50 percent of its membership interest in California Solar which was previously a wholly-owned subsidiary in 2014. California Solar owns project companies that operate 110 MW (AC) of solar electric production projects in California. Electricity generated by the projects is sold to Pacific Gas and Electric Company pursuant to long-term power purchase agreements. Subsequent to the sale, Con Edison Development’s remaining 50 percent interest in California Solar is accounted for under the equity method. As a result of the sale, Con Edison Development received net proceeds of $108 million and recognized a pre-tax gain on the sale of $45 million ($26 million, net of tax). The following table summarizes the sale and resultant deconsolidation on the transaction date:
Con Edison has a variable interest in OCI Solar San Antonio 4 LLC (Texas Solar 4), which is a consolidated entity in which Con Edison Development purchased an 80 percent membership interest in 2014 for $49 million. Texas Solar 4 owns a project company that developed a 40 MW (AC) solar electric production project in Texas. Electricity generated by the project is sold to the City of San Antonio pursuant to a long-term power purchase agreement. At December 31, 2014, Con Edison’s consolidated balance sheet includes $58 million in net assets (as detailed in the table below) and the non-controlling interest of the third party of $9 million related to Texas Solar 4. Earnings for the twelve months ended December 31, 2014 were immaterial.
Con Edison has a variable interest in Broken Bow II Wind Holdings, LLC (Broken Bow II), which is a non-consolidated entity in which Con Edison Development purchased a 50 percent membership interest in 2014. Broken Bow II owns a project company that developed a 75 MW (AC) wind electric production project in Nebraska. Electricity generated by the project is sold to Nebraska Public Power District pursuant to a long-term power purchase agreement.
The following table summarizes the VIEs in which Con Edison Development has entered into as of December 31, 2014:
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- Definition
The entire disclosure for a variable interest entity (VIE), including but not limited to, judgments and assumptions in determining whether to consolidate and in identifying the primary beneficiary, gain (loss) recognized on the initial consolidation of the VIE, terms of arrangements, amounts and classification of the VIE's assets and liabilities, and the entity's maximum exposure to loss. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Asset Retirement Obligations
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12 Months Ended |
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Dec. 31, 2014
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| Asset Retirement Obligations | Note R – Asset Retirement Obligations The Companies recognize a liability at fair value for legal obligations associated with the retirement of long-lived assets in the period in which they are incurred, or when sufficient information becomes available to reasonably estimate the fair value of such legal obligations. When the liability is initially recorded, asset retirement costs are capitalized by increasing the carrying amount of the related asset. The liability is accreted to its present value each period and the capitalized cost is depreciated over the useful life of the related asset. The fair value of the asset retirement obligation liability is measured using expected future cash flows discounted at credit-adjusted risk-free rates, historical information, and where available, quoted prices from outside contractors. The Companies evaluate these assumptions underlying the asset retirement obligation liability on an annual basis or as frequently as needed. The Companies recorded asset retirement obligations associated with the removal of asbestos and asbestos-containing material in their buildings (other than the structures enclosing generating stations and substations), electric equipment and steam and gas distribution systems. The Companies also recorded asset retirement obligations relating to gas pipelines abandoned in place. The Companies did not record an asset retirement obligation for the removal of asbestos associated with the structures enclosing generating stations and substations. For these building structures, the Companies were unable to reasonably estimate their asset retirement obligations because the Companies were unable to estimate the undiscounted retirement costs or the retirement dates and settlement dates. The amount of the undiscounted retirement costs could vary considerably depending on the disposition method for the building structures, and the method has not been determined. The Companies anticipate continuing to use these building structures in their businesses for an indefinite period, and so the retirement dates and settlement dates are not determinable. Con Edison recorded asset retirement obligations for the removal of its competitive energy businesses’ solar and wind equipment related to projects located on property that is not owned by them and the term of the arrangement is finite including any renewal options. Con Edison did not record asset retirement obligations for its competitive energy businesses’ projects that are located on property that is owned by them because they expect that the equipment will continue to generate electricity at these facilities long past the manufacturer’s warranty at minimal operating expense. Therefore Con Edison was unable to reasonably estimate the retirement date of this equipment. The Utilities include in depreciation rates the estimated removal costs, less salvage, for utility plant assets. The amounts related to removal costs that are associated with asset retirement obligations are classified as an asset retirement liability. Pursuant to accounting rules for regulated operations, future removal costs that do not represent legal asset retirement obligations are recorded as regulatory liabilities. Accretion and depreciation expenses related to removal costs that represent legal asset retirement obligations are applied against the Companies’ regulatory liabilities. Asset retirement costs that are recoverable from customers are recorded as regulatory liabilities to reflect the timing difference between costs recovered through the rate-making process and recognition of costs. At December 31, 2014, the liabilities for asset retirement obligations of Con Edison and CECONY were $188 million and $185 million, respectively, as compared to $143 million for both Con Edison and CECONY at December 31, 2013. The increase in liabilities at December 31, 2014 was due to changes in estimated cash flows of $60 million and $57 million for Con Edison and CECONY, respectively, and accretion expense of $6 million for both Con Edison and CECONY. The increases were offset in part by liabilities settled of $21 million for both Con Edison and CECONY. Con Edison and CECONY also recorded reductions of $16 million and $17 million during the years ended December 31, 2014 and 2013, respectively, to the regulatory liability associated with cost of removal to reflect depreciation and interest expense. |
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CECONY [Member]
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| Asset Retirement Obligations | Note R – Asset Retirement Obligations The Companies recognize a liability at fair value for legal obligations associated with the retirement of long-lived assets in the period in which they are incurred, or when sufficient information becomes available to reasonably estimate the fair value of such legal obligations. When the liability is initially recorded, asset retirement costs are capitalized by increasing the carrying amount of the related asset. The liability is accreted to its present value each period and the capitalized cost is depreciated over the useful life of the related asset. The fair value of the asset retirement obligation liability is measured using expected future cash flows discounted at credit-adjusted risk-free rates, historical information, and where available, quoted prices from outside contractors. The Companies evaluate these assumptions underlying the asset retirement obligation liability on an annual basis or as frequently as needed. The Companies recorded asset retirement obligations associated with the removal of asbestos and asbestos-containing material in their buildings (other than the structures enclosing generating stations and substations), electric equipment and steam and gas distribution systems. The Companies also recorded asset retirement obligations relating to gas pipelines abandoned in place. The Companies did not record an asset retirement obligation for the removal of asbestos associated with the structures enclosing generating stations and substations. For these building structures, the Companies were unable to reasonably estimate their asset retirement obligations because the Companies were unable to estimate the undiscounted retirement costs or the retirement dates and settlement dates. The amount of the undiscounted retirement costs could vary considerably depending on the disposition method for the building structures, and the method has not been determined. The Companies anticipate continuing to use these building structures in their businesses for an indefinite period, and so the retirement dates and settlement dates are not determinable. Con Edison recorded asset retirement obligations for the removal of its competitive energy businesses’ solar and wind equipment related to projects located on property that is not owned by them and the term of the arrangement is finite including any renewal options. Con Edison did not record asset retirement obligations for its competitive energy businesses’ projects that are located on property that is owned by them because they expect that the equipment will continue to generate electricity at these facilities long past the manufacturer’s warranty at minimal operating expense. Therefore Con Edison was unable to reasonably estimate the retirement date of this equipment. The Utilities include in depreciation rates the estimated removal costs, less salvage, for utility plant assets. The amounts related to removal costs that are associated with asset retirement obligations are classified as an asset retirement liability. Pursuant to accounting rules for regulated operations, future removal costs that do not represent legal asset retirement obligations are recorded as regulatory liabilities. Accretion and depreciation expenses related to removal costs that represent legal asset retirement obligations are applied against the Companies’ regulatory liabilities. Asset retirement costs that are recoverable from customers are recorded as regulatory liabilities to reflect the timing difference between costs recovered through the rate-making process and recognition of costs. At December 31, 2014, the liabilities for asset retirement obligations of Con Edison and CECONY were $188 million and $185 million, respectively, as compared to $143 million for both Con Edison and CECONY at December 31, 2013. The increase in liabilities at December 31, 2014 was due to changes in estimated cash flows of $60 million and $57 million for Con Edison and CECONY, respectively, and accretion expense of $6 million for both Con Edison and CECONY. The increases were offset in part by liabilities settled of $21 million for both Con Edison and CECONY. Con Edison and CECONY also recorded reductions of $16 million and $17 million during the years ended December 31, 2014 and 2013, respectively, to the regulatory liability associated with cost of removal to reflect depreciation and interest expense. |
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- Definition
The entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Related Party Transactions
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Dec. 31, 2014
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| Related Party Transactions | Note S – Related Party Transactions The Utilities and Con Edison’s competitive businesses provide administrative and other services to each other pursuant to cost allocation procedures approved by the NYSPSC. The costs of administrative and other services provided by CECONY to, and received by it from, Con Edison and its other subsidiaries for the years ended December 31, 2014, 2013 and 2012 were as follows:
In addition, CECONY and O&R have joint gas supply arrangements, in connection with which CECONY sold to O&R $80 million, $72 million and $54 million of natural gas for the years ended December 31, 2014, 2013 and 2012, respectively. These amounts are net of the effect of related hedging transactions. FERC has authorized CECONY through 2015 to lend funds to O&R from time to time, for periods of not more than 12 months, in amounts not to exceed $250 million outstanding at any time, at prevailing market rates. There were no outstanding loans to O&R at December 31, 2014 and 2013. |
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| Related Party Transactions | Note S – Related Party Transactions The Utilities and Con Edison’s competitive businesses provide administrative and other services to each other pursuant to cost allocation procedures approved by the NYSPSC. The costs of administrative and other services provided by CECONY to, and received by it from, Con Edison and its other subsidiaries for the years ended December 31, 2014, 2013 and 2012 were as follows:
In addition, CECONY and O&R have joint gas supply arrangements, in connection with which CECONY sold to O&R $80 million, $72 million and $54 million of natural gas for the years ended December 31, 2014, 2013 and 2012, respectively. These amounts are net of the effect of related hedging transactions. FERC has authorized CECONY through 2015 to lend funds to O&R from time to time, for periods of not more than 12 months, in amounts not to exceed $250 million outstanding at any time, at prevailing market rates. There were no outstanding loans to O&R at December 31, 2014 and 2013. |
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- Definition
The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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New Financial Accounting Standards
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12 Months Ended |
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Dec. 31, 2014
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| New Financial Accounting Standards | Note T – New Financial Accounting Standards In April 2014, the Financial Accounting Standards Board (FASB) issued amendments on reporting discontinued operations through Accounting Standards Update (ASU) No. 2014-08, “Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” The amendments revise the definition of a discontinued operation as a disposal of a component of an entity or a group of components of an entity, or a business or nonprofit activity that represents a strategic shift that has or will have a major effect on an entity’s operations and financial results. The amendments also require additional disclosures for discontinued operations and individually significant disposals that do not qualify for discontinued operations presentation in the financial statements. For public entities, the amendments are effective prospectively for reporting periods beginning on or after December 15, 2014. The application of this guidance does not have a material impact on the Companies’ financial position, results of operations and liquidity. In May 2014, the FASB and the International Accounting Standards Board (IASB) jointly issued a revenue recognition standard that will supersede the revenue recognition requirements within Accounting Standards Codification (ASC) Topic 605, “Revenue Recognition,” and most industry-specific guidance under the Codification through ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606).” The purpose of the new guidance is to create a consistent framework for revenue recognition. The guidance clarifies how to measure and recognize revenue arising from customer contracts to depict the transfer of goods or services in an amount that reflects the consideration the entity expects to receive. The new guidance must be adopted using either a full retrospective approach or a modified retrospective approach. For public entities reporting under GAAP, the new guidance is effective for periods beginning after December 15, 2016. The Companies are in the process of evaluating the application and impact of the new guidance on the Companies’ financial position, results of operations and liquidity. In June 2014, the FASB issued ASU No. 2014-12, “Compensation—Stock Compensation (Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period (a consensus of the FASB Emerging Issues Task Force).” The amendments clarify the accounting treatment regarding performance targets. Under the new guidance, a performance target that affects vesting and that could be achieved after the requisite service period is required to be treated as a performance condition and should not be reflected in estimating the grant-date fair value of the award. Compensation cost should be recognized only when it becomes probable that the performance target will be achieved. The amendments are effective for periods beginning after December 15, 2015. The application of this guidance is not expected to have a material impact on the Companies’ financial position, results of operations and liquidity. In August 2014, the FASB issued amendments on reporting about an entity’s ability to continue as a going concern in ASU No. 2014-15, “Presentation of Financial Statements – Going Concern (Subtopic 205 - 40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern.” The amendments provide guidance about management’s responsibility to evaluate whether there is substantial doubt surrounding an entity’s ability to continue as a going concern. If management concludes that substantial doubt exists, the amendments also require additional disclosures relating to management’s evaluation and conclusion. The amendments are effective for the annual reporting period ending after December 15, 2016 and interim periods thereafter. The application of this guidance is not expected to have a material impact on the Companies’ financial position, results of operations and liquidity. In November 2014, the FASB issued amendments on pushdown accounting for subsidiaries and acquired entities in ASU No. 2014-17, “Business Combinations (Topic 805): Pushdown Accounting.” The amendments provide guidance as to whether and at what threshold an acquired entity can apply pushdown accounting in its separate financial statements. The amendments are effective as of the date of issuance. The application of this guidance does not have a material impact on the Companies’ financial position, results of operations and liquidity. |
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CECONY [Member]
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| New Financial Accounting Standards | Note T – New Financial Accounting Standards In April 2014, the Financial Accounting Standards Board (FASB) issued amendments on reporting discontinued operations through Accounting Standards Update (ASU) No. 2014-08, “Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” The amendments revise the definition of a discontinued operation as a disposal of a component of an entity or a group of components of an entity, or a business or nonprofit activity that represents a strategic shift that has or will have a major effect on an entity’s operations and financial results. The amendments also require additional disclosures for discontinued operations and individually significant disposals that do not qualify for discontinued operations presentation in the financial statements. For public entities, the amendments are effective prospectively for reporting periods beginning on or after December 15, 2014. The application of this guidance does not have a material impact on the Companies’ financial position, results of operations and liquidity. In May 2014, the FASB and the International Accounting Standards Board (IASB) jointly issued a revenue recognition standard that will supersede the revenue recognition requirements within Accounting Standards Codification (ASC) Topic 605, “Revenue Recognition,” and most industry-specific guidance under the Codification through ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606).” The purpose of the new guidance is to create a consistent framework for revenue recognition. The guidance clarifies how to measure and recognize revenue arising from customer contracts to depict the transfer of goods or services in an amount that reflects the consideration the entity expects to receive. The new guidance must be adopted using either a full retrospective approach or a modified retrospective approach. For public entities reporting under GAAP, the new guidance is effective for periods beginning after December 15, 2016. The Companies are in the process of evaluating the application and impact of the new guidance on the Companies’ financial position, results of operations and liquidity. In June 2014, the FASB issued ASU No. 2014-12, “Compensation—Stock Compensation (Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period (a consensus of the FASB Emerging Issues Task Force).” The amendments clarify the accounting treatment regarding performance targets. Under the new guidance, a performance target that affects vesting and that could be achieved after the requisite service period is required to be treated as a performance condition and should not be reflected in estimating the grant-date fair value of the award. Compensation cost should be recognized only when it becomes probable that the performance target will be achieved. The amendments are effective for periods beginning after December 15, 2015. The application of this guidance is not expected to have a material impact on the Companies’ financial position, results of operations and liquidity. In August 2014, the FASB issued amendments on reporting about an entity’s ability to continue as a going concern in ASU No. 2014-15, “Presentation of Financial Statements – Going Concern (Subtopic 205 - 40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern.” The amendments provide guidance about management’s responsibility to evaluate whether there is substantial doubt surrounding an entity’s ability to continue as a going concern. If management concludes that substantial doubt exists, the amendments also require additional disclosures relating to management’s evaluation and conclusion. The amendments are effective for the annual reporting period ending after December 15, 2016 and interim periods thereafter. The application of this guidance is not expected to have a material impact on the Companies’ financial position, results of operations and liquidity. In November 2014, the FASB issued amendments on pushdown accounting for subsidiaries and acquired entities in ASU No. 2014-17, “Business Combinations (Topic 805): Pushdown Accounting.” The amendments provide guidance as to whether and at what threshold an acquired entity can apply pushdown accounting in its separate financial statements. The amendments are effective as of the date of issuance. The application of this guidance does not have a material impact on the Companies’ financial position, results of operations and liquidity. |
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- Definition
New Financial Accounting Standards [Text Block] No definition available.
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Schedule I - Condensed Financial Information
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Dec. 31, 2014
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| Condensed Financial Information of Parent Company Only Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule I - Condensed Financial Information | Schedule I Condensed Financial Information of Consolidated Edison, Inc.* Condensed Statement of Income and Comprehensive Income (Parent Company Only)
Condensed Financial Information of Consolidated Edison, Inc.* Condensed Statement of Cash Flows (Parent Company Only)
Condensed Financial Information of Consolidated Edison, Inc.* Condensed Balance Sheet (Parent Company Only)
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- Details
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- Definition
The entire disclosure for condensed financial information, including the financial position, cash flows, and the results of operations of the registrant (parent company) as of the same dates or for the same periods for which audited consolidated financial statements are being presented. Alternatively, the details of this disclosure can be reported by the specific parent company taxonomy elements, indicating the appropriate date and period contexts in an instance document. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Schedule II - Valuation and Qualifying Accounts
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Dec. 31, 2014
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| Schedule II - Valuation and Qualifying Accounts | Schedule II Valuation and Qualifying Accounts For the Years Ended December 31, 2014, 2013 and 2012
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CECONY [Member]
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| Schedule II - Valuation and Qualifying Accounts | Schedule II Valuation and Qualifying Accounts For the Years Ended December 31, 2014, 2013 and 2012
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- Definition
The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Summary of Significant Accounting Policies (Policies)
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Dec. 31, 2014
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| Accounting Policies [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Principles of Consolidation | Principles of Consolidation The Companies’ consolidated financial statements include the accounts of their respective majority-owned subsidiaries, and variable interest entities (see Note Q), as required. All intercompany balances and transactions have been eliminated. |
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| Accounting Policies | Accounting Policies The accounting policies of Con Edison and its subsidiaries conform to generally accepted accounting principles in the United States of America (GAAP). For the Utilities, these accounting principles include the accounting rules for regulated operations and the accounting requirements of the Federal Energy Regulatory Commission (FERC) and the state regulators having jurisdiction. The accounting rules for regulated operations specify the economic effects that result from the causal relationship of costs and revenues in the rate-regulated environment and how these effects are to be accounted for by a regulated enterprise. Revenues intended to cover some costs may be recorded either before or after the costs are incurred. If regulation provides assurance that incurred costs will be recovered in the future, these costs would be recorded as deferred charges or “regulatory assets” under the accounting rules for regulated operations. If revenues are recorded for costs that are expected to be incurred in the future, these revenues would be recorded as deferred credits or “regulatory liabilities” under the accounting rules for regulated operations. The Utilities’ principal regulatory assets and liabilities are detailed in Note B. The Utilities are receiving or being credited with a return on all of their regulatory assets for which a cash outflow has been made, and are paying or being charged with a return on all of their regulatory liabilities for which a cash inflow has been received. The Utilities’ regulatory assets and liabilities will be recovered from customers, or applied for customer benefit, in accordance with rate provisions approved by the applicable state regulators. Other significant accounting policies of the Companies are referenced below in this Note A and in the notes that follow. |
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| Plant and Depreciation | Plant and Depreciation Utility Plant Utility plant is stated at original cost. The cost of repairs and maintenance is charged to expense and the cost of betterments is capitalized. The capitalized cost of additions to utility plant includes indirect costs such as engineering, supervision, payroll taxes, pensions, other benefits and an allowance for funds used during construction (AFUDC). The original cost of property is charged to expense over the estimated useful lives of the assets. Upon retirement, the original cost of property is charged to accumulated depreciation. See Note R. Rates used for AFUDC include the cost of borrowed funds and a reasonable rate of return on the Utilities’ own funds when so used, determined in accordance with regulations of the FERC or the state public utility regulatory authority having jurisdiction. The rate is compounded semiannually, and the amounts applicable to borrowed funds are treated as a reduction of interest charges, while the amounts applicable to the Utilities’ own funds are credited to other income (deductions). The AFUDC rates for CECONY were 1.6 percent, 4.0 percent and 6.5 percent for 2014, 2013 and 2012, respectively. The AFUDC rates for O&R were 2.6 percent, 5.7 percent and 7.0 percent for 2014, 2013 and 2012, respectively. The Utilities generally compute annual charges for depreciation using the straight-line method for financial statement purposes, with rates based on average service lives and net salvage factors. The average depreciation rates for CECONY were 3.1 percent, 3.2 percent and 3.1 percent for 2014, 2013 and 2012, respectively. The average depreciation rates for O&R were 2.9 percent, 2.8 percent and 2.9 percent for 2014, 2013 and 2012, respectively. The estimated lives for utility plant for CECONY range from 5 to 85 years for electric and gas, 5 to 80 years for steam and 5 to 55 years for general plant. For O&R, the estimated lives for utility plant range from 5 to 75 years for electric and gas and 5 to 50 years for general plant. At December 31, 2014 and 2013, the capitalized cost of the Companies’ utility plant, net of accumulated depreciation, was as follows:
Under the Utilities’ rate plans, the aggregate annual depreciation allowance in effect at December 31, 2014 was $1,048 million, including $993 million under CECONY’s electric, gas and steam rate plans that have been approved by the New York State Public Service Commission (NYSPSC). Non-Utility Plant Non-utility plant is stated at original cost. For Con Edison, non-utility plant consists primarily of the competitive energy businesses’ renewable electric production and gas storage. For the Utilities, non-utility plant consists of land and conduit for telecommunication use. Depreciation on these assets is computed using the straight-line method for financial statement purposes over their estimated useful lives, which range from 3 to 30 years. |
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| Goodwill | Goodwill Con Edison tests goodwill for impairment at least annually. Goodwill is tested for impairment using a two-step approach. The first step of the goodwill impairment test compares the estimated fair value of a reporting unit with its carrying value, including goodwill. If the estimated fair value of a reporting unit exceeds its carrying value, goodwill of the reporting unit is considered not impaired. If the carrying value exceeds the estimated fair value of the reporting unit, the second step is performed to measure the amount of impairment loss, if any. The second step requires a calculation of the implied fair value of goodwill. See Note K. |
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| Impairments | Impairments Con Edison evaluates the impairment of long-lived assets, based on projections of undiscounted future cash flows, whenever events or changes in circumstances indicate that the carrying amounts of such assets may not be recoverable. In the event an evaluation indicates that such cash flows cannot be expected to be sufficient to fully recover the assets, the assets are written down to their estimated fair value. No impairment charges were recognized in 2014, 2013 or 2012. |
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| Revenues | Revenues The Utilities and Con Edison Solutions recognize revenues for energy service on a monthly billing cycle basis. The Utilities defer over a 12-month period net interruptible gas revenues, other than those authorized by the NYSPSC to be retained by the Utilities, for refund to firm gas sales and transportation customers. The Utilities and Con Edison Solutions accrue revenues at the end of each month for estimated energy service not yet billed to customers. CECONY’s electric and gas rate plans and O&R’s New York electric and gas rate plans each contain a revenue decoupling mechanism under which the company’s actual energy delivery revenues are compared with the authorized delivery revenues and the difference accrued, with interest, for refund to, or recovery from, customers, as applicable. See “Rate Plans” in Note B. The NYSPSC requires utilities to record gross receipts tax revenues and expenses on a gross income statement presentation basis (i.e., included in both revenue and expense). The recovery of these taxes is generally provided for in the revenue requirement within each of the respective NYSPSC approved rate plans. Total excise taxes (inclusive of gross receipts taxes) recorded in operating revenues were as follows:
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| Public Utility Information | Recoverable Energy Costs The Utilities generally recover all of their prudently incurred fuel, purchased power and gas costs, including hedging gains and losses, in accordance with rate provisions approved by the applicable state public utility regulators. If the actual energy supply costs for a given month are more or less than the amounts billed to customers for that month, the difference in most cases is recoverable from or refundable to customers. Differences between actual and billed electric and steam supply costs and costs of its electric demand management programs are generally deferred for charge or refund to customers during the next billing cycle (normally within one or two months). For the Utilities’ gas costs, differences between actual and billed gas costs during the 12-month period ending each August are charged or refunded to customers during a subsequent 12-month period. New York Independent System Operator (NYISO) The Utilities purchase electricity through the wholesale electricity market administered by the NYISO. The difference between purchased power and related costs initially billed to the Utilities by the NYISO and the actual cost of power subsequently calculated by the NYISO is refunded by the NYISO to the Utilities, or paid to the NYISO by the Utilities. The reconciliation payments or receipts are recoverable from or refundable to the Utilities’ customers. Certain other payments to or receipts from the NYISO are also subject to reconciliation, with shortfalls or amounts in excess of specified rate allowances recoverable from or refundable to customers. These include proceeds from the sale through the NYISO of transmission rights on CECONY’s transmission system (transmission congestion contracts or TCCs). |
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| Temporary Cash Investments | Temporary Cash Investments Temporary cash investments are short-term, highly-liquid investments that generally have maturities of three months or less at the date of purchase. They are stated at cost, which approximates market. The Companies consider temporary cash investments to be cash equivalents. |
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| Investments | Investments Investments consist primarily of the investments of Con Edison’s competitive energy businesses, which are accounted for under the equity method (depending on the subsidiaries’ percentage ownership). Utilities’ investments are recorded at fair value and include the investments of the deferred income plan and the supplemental retirement income plan in trust-owned life insurance assets. |
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| Pension and Other Postretirement Benefits | Pension and Other Postretirement Benefits The accounting rules for retirement benefits require an employer to recognize an asset or liability for the overfunded or underfunded status of its pension and other postretirement benefit plans. For a pension plan, the asset or liability is the difference between the fair value of the plan’s assets and the projected benefit obligation. For any other postretirement benefit plan, the asset or liability is the difference between the fair value of the plan’s assets and the accumulated postretirement benefit obligation. The accounting rules generally require employers to recognize all unrecognized prior service costs and credits and unrecognized actuarial gains and losses in accumulated other comprehensive income (OCI), net of tax. Such amounts will be adjusted as they are subsequently recognized as components of net periodic benefit cost or income pursuant to the current recognition and amortization provisions. For the Utilities’ pension and other postretirement benefit plans, regulatory accounting treatment is generally applied in accordance with the accounting rules for regulated operations. Unrecognized prior service costs or credits and unrecognized actuarial gains and losses are recorded to regulatory assets or liabilities, rather than OCI. See Notes E and F. The net periodic benefit costs are recognized in accordance with the accounting rules for retirement benefits. Investment gains and losses are recognized in expense over a 15-year period and other actuarial gains and losses are recognized in expense over a 10-year period, subject to the deferral provisions in the rate plans. In accordance with the Statement of Policy issued by the NYSPSC and its current electric, gas and steam rate plans, CECONY defers for payment to or recovery from customers the difference between such expenses and the amounts for such expenses reflected in rates. Generally, O&R also defers such difference pursuant to its rate plans. See Note B – Regulatory Matters.
The Companies calculate the expected return on pension and other postretirement benefit plan assets by multiplying the expected rate of return on plan assets by the market-related value (MRV) of plan assets at the beginning of the year, taking into consideration anticipated contributions and benefit payments that are to be made during the year. The accounting rules allow the MRV of plan assets to be either fair value or a calculated value that recognizes changes in fair value in a systematic and rational manner over not more than five years. The Companies use a calculated value when determining the MRV of the plan assets that adjusts for 20 percent of the difference between fair value and expected MRV of plan assets. This calculated value has the effect of stabilizing variability in assets to which the Companies apply the expected return. |
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| Income Taxes | Federal Income Tax In accordance with the accounting rules for income taxes, the Companies have recorded an accumulated deferred federal income tax liability for temporary differences between the book and tax basis of assets and liabilities at current tax rates. In accordance with rate plans, the Utilities have recovered amounts from customers for a portion of the tax liability they will pay in the future as a result of the reversal or “turn-around” of these temporary differences. As to the remaining tax liability, in accordance with the accounting rules for regulated operations, the Utilities have established regulatory assets for the net revenue requirements to be recovered from customers for the related future tax expense. See Notes B and L. In 1993, the NYSPSC issued a Policy Statement approving accounting procedures consistent with the accounting rules for income taxes and providing assurances that these future increases in taxes will be recoverable in rates. See Note L. Accumulated deferred investment tax credits are amortized ratably over the lives of the related properties and applied as a reduction to future federal income tax expense. Con Edison and its subsidiaries file a consolidated federal income tax return. The consolidated income tax liability is allocated to each member of the consolidated group using the separate return method. Each member pays or receives an amount based on its own taxable income or loss in accordance with tax sharing agreements among the members of the consolidated group. Tax loss carryforwards are allocated among members in accordance with consolidated tax return regulations. State Income Tax Con Edison and its subsidiaries file a combined New York State Corporation Business Franchise Tax Return. Similar to a federal consolidated income tax return, the income of all entities in the combined group is subject to New York State taxation, after adjustments for differences between federal and New York law and apportionment of income among the states in which the company does business. Each member’s share of the New York State tax is based on its own New York State taxable income or loss. |
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| Research and Development Costs | Research and Development Costs Generally research and development costs are charged to operating expenses as incurred. Research and development costs were as follows:
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| Reclassification | Reclassification Certain prior year amounts have been reclassified to conform with the current year presentation. |
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| Earnings Per Common Share | Earnings Per Common Share Con Edison presents basic and diluted earnings per share on the face of its consolidated income statement. Basic earnings per share (EPS) are calculated by dividing earnings available to common shareholders (“Net income for common stock” on Con Edison’s consolidated income statement) by the weighted average number of Con Edison common shares outstanding during the period. In the calculation of diluted EPS, weighted average shares outstanding are increased for additional shares that would be outstanding if potentially dilutive securities were converted to common stock. Potentially dilutive securities for Con Edison consist of restricted stock units, deferred stock units and stock options for which the average market price of the common shares for the period was greater than the exercise price. See Note M.
Basic and diluted EPS for Con Edison are calculated as follows:
The computation of diluted EPS for the years ended December 31, 2014, 2013 and 2012 exclude immaterial amounts of performance share awards that were not included because of their anti-dilutive effect. |
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| Estimates | Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. |
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| Changes in Accumulated Other Comprehensive Income by Component | Changes in Accumulated Other Comprehensive Income by Component Changes to accumulated other comprehensive income (OCI) for Con Edison and CECONY are as follows:
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| New Financial Accounting Standards | New Financial Accounting Standards In April 2014, the Financial Accounting Standards Board (FASB) issued amendments on reporting discontinued operations through Accounting Standards Update (ASU) No. 2014-08, “Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” The amendments revise the definition of a discontinued operation as a disposal of a component of an entity or a group of components of an entity, or a business or nonprofit activity that represents a strategic shift that has or will have a major effect on an entity’s operations and financial results. The amendments also require additional disclosures for discontinued operations and individually significant disposals that do not qualify for discontinued operations presentation in the financial statements. For public entities, the amendments are effective prospectively for reporting periods beginning on or after December 15, 2014. The application of this guidance does not have a material impact on the Companies’ financial position, results of operations and liquidity. In May 2014, the FASB and the International Accounting Standards Board (IASB) jointly issued a revenue recognition standard that will supersede the revenue recognition requirements within Accounting Standards Codification (ASC) Topic 605, “Revenue Recognition,” and most industry-specific guidance under the Codification through ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606).” The purpose of the new guidance is to create a consistent framework for revenue recognition. The guidance clarifies how to measure and recognize revenue arising from customer contracts to depict the transfer of goods or services in an amount that reflects the consideration the entity expects to receive. The new guidance must be adopted using either a full retrospective approach or a modified retrospective approach. For public entities reporting under GAAP, the new guidance is effective for periods beginning after December 15, 2016. The Companies are in the process of evaluating the application and impact of the new guidance on the Companies’ financial position, results of operations and liquidity. In June 2014, the FASB issued ASU No. 2014-12, “Compensation—Stock Compensation (Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period (a consensus of the FASB Emerging Issues Task Force).” The amendments clarify the accounting treatment regarding performance targets. Under the new guidance, a performance target that affects vesting and that could be achieved after the requisite service period is required to be treated as a performance condition and should not be reflected in estimating the grant-date fair value of the award. Compensation cost should be recognized only when it becomes probable that the performance target will be achieved. The amendments are effective for periods beginning after December 15, 2015. The application of this guidance is not expected to have a material impact on the Companies’ financial position, results of operations and liquidity. In August 2014, the FASB issued amendments on reporting about an entity’s ability to continue as a going concern in ASU No. 2014-15, “Presentation of Financial Statements – Going Concern (Subtopic 205 - 40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern.” The amendments provide guidance about management’s responsibility to evaluate whether there is substantial doubt surrounding an entity’s ability to continue as a going concern. If management concludes that substantial doubt exists, the amendments also require additional disclosures relating to management’s evaluation and conclusion. The amendments are effective for the annual reporting period ending after December 15, 2016 and interim periods thereafter. The application of this guidance is not expected to have a material impact on the Companies’ financial position, results of operations and liquidity. In November 2014, the FASB issued amendments on pushdown accounting for subsidiaries and acquired entities in ASU No. 2014-17, “Business Combinations (Topic 805): Pushdown Accounting.” The amendments provide guidance as to whether and at what threshold an acquired entity can apply pushdown accounting in its separate financial statements. The amendments are effective as of the date of issuance. The application of this guidance does not have a material impact on the Companies’ financial position, results of operations and liquidity. |
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Accumulated Other Comprehensive Income Policy [Text Block] No definition available.
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Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). No definition available.
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Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for salaries, bonuses, incentive awards, postretirement and postemployment benefits granted to employees, including equity-based arrangements; discloses methodologies for measurement, and the bases for recognizing related assets and liabilities and recognizing and reporting compensation expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for goodwill and intangible assets. This accounting policy also may address how an entity assesses and measures impairment of goodwill and intangible assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for recognizing and measuring the impairment of long-lived assets. An entity also may disclose its accounting policy for long-lived assets to be sold. This policy excludes goodwill and intangible assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for investments in financial assets, including marketable securities (debt and equity securities with readily determinable fair values), investments accounted for under the equity method and cost method, securities borrowed and loaned, and repurchase and resale agreements. For marketable securities, the disclosure may include the entity's accounting treatment for transfers between investment categories and how the fair values for such securities are determined. Also, for all investments, an entity may describe its policy for assessing, recognizing and measuring impairment of the investment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact. No definition available.
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Disclosure of accounting policy for reclassifications that affects the comparability of the financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, basis of assets, depreciation and depletion methods used, including composite deprecation, estimated useful lives, capitalization policy, accounting treatment for costs incurred for repairs and maintenance, capitalized interest and the method it is calculated, disposals and impairments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for public utilities. Examples include a discussion about the scope criteria and appropriateness for and extent of the application of generally accepted accounting principles related to accounting for the effects of certain types of regulation (may include identification of specific business units). Other examples of the disclosures may include: descriptions of the form and economic effects of regulation (for example, but not limited to, recording of regulatory assets and liabilities to the rate setting process); statement about periodic assessments of periodic assessments of generally accepted accounting principles related to accounting for the effects of certain types of regulation; information regarding amortization of and return on regulatory assets and liabilities, including the remaining amounts and recovery or settlement periods; accounting for changes to recovery estimates; AFUDC, plant abandonment's and plant disallowances. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for its research and development and computer software activities including the accounting treatment for costs incurred for (1) research and development activities, (2) development of computer software for internal use, (3) computer software to be sold, leased or otherwise marketed as a separate product or as part of a product or process and (4) in-process research and development acquired in a purchase business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for revenue recognition. If the entity has different policies for different types of revenue transactions, the policy for each material type of transaction is generally disclosed. If a sales transaction has multiple element arrangements (for example, delivery of multiple products, services or the rights to use assets) the disclosure may indicate the accounting policy for each unit of accounting as well as how units of accounting are determined and valued. The disclosure may encompass important judgment as to appropriateness of principles related to recognition of revenue. The disclosure also may indicate the entity's treatment of any unearned or deferred revenue that arises from the transaction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Summary of Significant Accounting Policies (Tables)
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Dec. 31, 2014
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| Accounting Policies [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Capitalized Cost of Utility Plant | At December 31, 2014 and 2013, the capitalized cost of the Companies’ utility plant, net of accumulated depreciation, was as follows:
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| Schedule of Total Excise Taxes Recorded in Operating Revenues | Total excise taxes (inclusive of gross receipts taxes) recorded in operating revenues were as follows:
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| Research and Development Costs | Generally research and development costs are charged to operating expenses as incurred. Research and development costs were as follows:
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| Earnings Per Common Share | Basic and diluted EPS for Con Edison are calculated as follows:
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| Changes in Accumulated Other Comprehensive Income by Component | Changes to accumulated other comprehensive income (OCI) for Con Edison and CECONY are as follows:
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| X | ||||||||||
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- Definition
Schedule Of Excise Taxes [Table Text Block] No definition available.
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| X | ||||||||||
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- Definition
Schedule Of Research And Development Expense Table [Text Block] No definition available.
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of the components of accumulated other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tabular disclosure of the effect of income (loss) on an entity's diluted earnings per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tabular disclosure of public utility physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, deprecation expense and method used, including composite depreciation, and accumulated deprecation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Regulatory Matters (Tables)
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12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2014
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| Regulatory Assets and Liabilities | Regulatory Assets and Liabilities Regulatory assets and liabilities at December 31, 2014 and 2013 were comprised of the following items:
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|
Rockland Electric Company (RECO) [Member]
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| Summary of Utilities Rate Plans |
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|
Electric Transmission [Member] | CECONY [Member]
|
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| Summary of Utilities Rate Plans | The following tables contain a summary of the Utilities’ rate plans:
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Electric Transmission [Member] | O&R [Member]
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| Summary of Utilities Rate Plans |
|
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|
Electric Transmission [Member] | Pike County Light & Power Company (Pike) [Member]
|
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| Summary of Utilities Rate Plans |
|
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|
Gas [Member] | CECONY [Member]
|
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| Summary of Utilities Rate Plans |
|
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|
Gas [Member] | O&R [Member]
|
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| Summary of Utilities Rate Plans |
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Gas [Member] | Pike County Light & Power Company (Pike) [Member]
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| Summary of Utilities Rate Plans |
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Steam [Member] | CECONY [Member]
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| Summary of Utilities Rate Plans |
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- Definition
Schedule Of Regulatory Assets And Liabilities Table [Text Block] No definition available.
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- Definition
Tabular disclosure of regulation for public utility entities, including, but not limited to, rate requests, decommissioning costs and the amount of allowance for earnings on equity capitalized for rate making purposes. No definition available.
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Capitalization (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2014
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| Text Block [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Long-Term Debt Maturities | Long-term Debt Long-term debt maturing in the period 2015-2019 is as follows:
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| Carrying Amounts and Fair Values of Long-Term Debt | The carrying amounts and fair values of long-term debt at December 31, 2014 and 2013 are:
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- Definition
Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements. No definition available.
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- Definition
Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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Pension Benefits (Tables) (Pension Benefits [Member])
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12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2014
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Pension Benefits [Member]
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| Net Periodic Benefit Costs | The components of the Companies’ total periodic benefit costs for 2014, 2013 and 2012 were as follows:
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| Schedule of Funded Status | Funded Status The funded status at December 31, 2014, 2013 and 2012 was as follows:
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| Schedule of Assumptions | The actuarial assumptions were as follows:
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| Schedule of Expected Benefit Payments | Based on current assumptions, the Companies expect to make the following benefit payments over the next ten years:
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| Schedule of Plan Assets Allocations | The asset allocations for the pension plan at the end of 2014, 2013 and 2012, and the target allocation for 2015 are as follows:
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| Schedule of Fair Value of Plan Assets | The fair values of the pension plan assets at December 31, 2014 by asset category are as follows:
The fair values of the pension plan assets at December 31, 2013 by asset category are as follows:
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| Reconciliation of Fair Value Balances for Net Assets | The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2014 classified as Level 3 in the fair value hierarchy.
The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2013 classified as Level 3 in the fair value hierarchy.
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| Schedule of Employer Contribution to Defined Savings Plan | The Companies also offer a defined contribution savings plan that covers substantially all employees and made contributions to the plan as follows:
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- Definition
Reconciliation of fair value balances for net assets No definition available.
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| X | ||||||||||
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- Definition
Schedule of assumptions No definition available.
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- Definition
Schedule of employer contribution to defined savings plan No definition available.
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| X | ||||||||||
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- Definition
Schedule of estimated benefit payments No definition available.
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- Definition
Schedule of fair value of plan assets No definition available.
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| X | ||||||||||
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- Definition
Schedule of funded status No definition available.
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| X | ||||||||||
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- Definition
Schedule of net periodic benefit cost. No definition available.
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| X | ||||||||||
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- Definition
Schedule of plan assets No definition available.
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Other Postretirement Benefits (Tables) (Other Postretirement Benefits [Member])
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Dec. 31, 2014
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Other Postretirement Benefits [Member]
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| Net Periodic Benefit Costs | The components of the Companies’ net periodic postretirement benefit costs for 2014, 2013 and 2012 were as follows:
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| Schedule of Funded Status | The funded status of the programs at December 31, 2014, 2013 and 2012 were as follows:
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| Schedule of Actuarial Assumptions | The actuarial assumptions were as follows:
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| Schedule of Change of Assumed Health Care Cost Trend Rate | A one-percentage point change in the assumed health care cost trend rate would have the following effects at December 31, 2015:
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| Schedule of Expected Benefit Payments | Based on current assumptions, the Companies expect to make the following benefit payments over the next ten years, net of receipt of governmental subsidies:
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| Schedule of Plan Assets Allocations | The asset allocations for CECONY’s other postretirement benefit plans at the end of 2014, 2013 and 2012, and the target allocation for 2015 are as follows:
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| Schedule of Fair Values of Plan Assets | The fair values of the plan assets at December 31, 2014 by asset category as defined by the accounting rules for fair value measurements (see Note P) are as follows:
The fair values of the plan assets at December 31, 2013 by asset category (see Note P) are as follows:
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| Reconciliation of Fair Value Balances for Net Assets | The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2014 classified as Level 3 in the fair value hierarchy.
The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2013 classified as Level 3 in the fair value hierarchy.
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- Definition
Schedule of change of assumed health care trend rate [Text Block] No definition available.
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- Definition
Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the amounts that are recognized in the balance sheet (or statement of financial position) for pension plans and/or other employee benefit plans, showing separately the assets and current and noncurrent liabilities (if applicable) recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the reconciliation of beginning and ending balances of the fair value of plan assets of pension plans and/or other employee benefit plans showing separately, if applicable, the effects during the period attributable to each of the following: actual return on plan assets, foreign currency exchange rate changes, contributions by the employer, contributions by plan participants, benefits paid, business combinations, divestitures, and settlements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of net funded status of pension plans and/or other employee benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Environmental Matters (Tables)
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12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2014
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| Environmental Remediation Obligations [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accrued Liabilities and Regulatory Assets | The accrued liabilities and regulatory assets related to Superfund Sites at December 31, 2014 and 2013 were as follows:
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| Environmental Remediation Costs | Environmental remediation costs incurred and insurance recoveries received related to Superfund Sites at December 31, 2014 and 2013 were as follows:
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| Accrued Liability for Asbestos Suits and Workers' Compensation Proceedings | The accrued liability for asbestos suits and workers’ compensation proceedings (including those related to asbestos exposure) and the amounts deferred as regulatory assets for the Companies at December 31, 2014 and 2013 were as follows:
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- Definition
Accrued Liabilities And Regulatory Assets [Table Text Block] No definition available.
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- Definition
Accrued Liabilities For Asbestos Suits And Workers Compensation Proceedings [Table Text Block] No definition available.
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- Definition
Environmental Remediation Costs Incurred Related To Super Fund Sites [Table Text Block] No definition available.
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- Details
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Other Material Contingencies (Tables)
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Dec. 31, 2014
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| Commitments and Contingencies Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Total Guarantees | A summary, by type and term, of Con Edison’s total guarantees at December 31, 2014 is as follows:
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- Definition
Tabular disclosure of each guarantee obligation, or each group of similar guarantee obligations, including (a) the nature of the guarantee, including its term, how it arose, and the events or circumstances that would require the guarantor to perform under the guarantee; (b) the maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee; (c) the current carrying amount of the liability, if any, for the guarantor's obligations under the guarantee; and (d) the nature of any recourse provisions under the guarantee, and any assets held either as collateral or by third parties, and any relevant related party disclosure. Excludes disclosures about product warranties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Electricity Purchase Agreements (Tables)
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Dec. 31, 2014
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| Regulated Operations [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of Significant Terms of Electricity Purchase Agreements | At December 31, 2014, the significant terms of the electricity purchase agreements were as follows:
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| Summary of Estimated Capacity and Other Fixed Payments | The future capacity and other fixed payments under the contracts are estimated to be as follows:
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| Summary of Capacity, Energy and Other Fixed Payments | The company’s payments under the agreements for capacity, energy and other fixed payments in 2014, 2013 and 2012 were as follows:
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- Definition
Estimated Aggregate Amounts Of Minimum Fixed Payments On Purchase And Service Obligations Table [Text Block] No definition available.
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- Definition
Schedule Of Fixed Capacity Payment Commitments Table [Text Block] No definition available.
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- Definition
Tabular disclosure of information concerning the terms and significance of long term contracts to purchase power (generally referred to as purchase power agreements (PPAs) or power sale agreements (PSAs)) including date of contract expiration, share of plant output being purchased, estimated annual cost, annual minimum debt service payment required and amount of related long-term debt or lease obligations outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Leases (Tables)
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Dec. 31, 2014
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| Leases [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Capital Leases | The following assets under capital leases are included in the Companies’ consolidated balance sheets at December 31, 2014 and 2013:
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| Future Minimum Lease Commitments | The future minimum lease commitments for the above assets are as follows:
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| Future Minimum Rental Payments for Operating Leases | The future minimum lease commitments under the Companies’ non-cancelable operating lease agreements are as follows:
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| Schedule of Leveraged Lease Transactions Effect on Consolidated Income Statement | The effect on Con Edison’s consolidated income statement for the twelve months ended as of December 31, 2014 and 2013 was as follows:
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- Definition
Components Of Income From Leveraged Lease Table [Text Block] No definition available.
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of long-lived, depreciable assets that are subject to a lease meeting the criteria for capitalization and are used in the normal conduct of business to produce goods and services. Examples may include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tabular disclosure of future minimum lease payments as of the date of the latest balance sheet presented, in aggregate and for each of the five years succeeding fiscal years, with separate deductions from the total for the amount representing executor costs, including any profit thereon, included in the minimum lease payments and for the amount of the imputed interest necessary to reduce the net minimum lease payments to present value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Income Tax (Tables)
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12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2014
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| Income Tax Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Components of Income Tax | The components of income tax are as follows:
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| Schedule of Differences on Deferred Tax Assets and Liabilities | The tax effects of temporary differences, which gave rise to deferred tax assets and liabilities, are as follows:
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| Schedule of Income Tax Reconciliation | Reconciliation of the difference between income tax expense and the amount computed by applying the prevailing statutory income tax rate to income before income taxes is as follows:
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| Summary of Unrecognized Tax Benefits | A reconciliation of the beginning and ending amounts of unrecognized tax benefits for Con Edison and CECONY follows:
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- Details
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- Definition
Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities (i.e., uncertain tax positions) and other types of income tax contingencies, including: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Stock-Based Compensation (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2014
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| Stock-Based Compensation Expense | The following table summarizes stock-based compensation expense recognized by the Companies in the years ended December 31, 2014, 2013 and 2012:
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| Summary of Status of Stock Options | A summary of changes in the status of stock options as of December 31, 2014 is as follows:
Note: The weighted average remaining contractual life is one year for all outstanding options as of 12/31/14. |
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| Summary of Stock Options | The following table summarizes information about stock options for the years ended December 31, 2014 and 2013:
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| Assumptions Used to Calculate Fair Value | The following table illustrates the assumptions used to calculate the fair value of the awards:
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| Summary of Changes in Status of Time-Based Awards | A summary of changes in the status of time-based awards during the year ended December 31, 2014 is as follows:
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Tsr and non-tsr portions.
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| Summary of Changes in Status of Performance RSUs' | A summary of changes in the status of the Performance RSUs’ TSR and non-TSR portions during the year ended December 31, 2014 is as follows:
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- Definition
Summary of Changes in Status of Time Based Awards Table [Text Block] No definition available.
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- Definition
Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the changes in outstanding nonvested restricted stock shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value. No definition available.
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- Definition
Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Financial Information by Business Segment (Tables)
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12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2014
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| Segment Reporting [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Financial Data for Business Segments | The financial data for the business segments are as follows:
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- Definition
Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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Derivative Instruments and Hedging Activities (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2014
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| Derivative Instruments and Hedging Activities Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Values of Commodity Derivatives Including Offsetting of Assets and Liabilities | The fair values of the Companies’ commodity derivatives including the offsetting of assets and liabilities on the consolidated balance sheet at December 31, 2014 and 2013 were:
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| Realized and Unrealized Gains or Losses on Commodity Derivatives | The following table presents the realized and unrealized gains or losses on commodity derivatives that have been deferred or recognized in earnings for the years ended December 31, 2014 and 2013:
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| Hedged Volume of Derivative Transactions | The following table presents the hedged volume of Con Edison’s and CECONY’s derivative transactions at December 31, 2014:
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| Aggregate Fair Value of Companies' Derivative Instruments with Credit-Risk-Related Contingent Features | The following table presents the aggregate fair value of the Companies’ derivative instruments with credit-risk-related contingent features that are in a net liability position, the collateral posted for such positions and the additional collateral that would have been required to be posted had the lowest applicable credit rating been reduced one level and to below investment grade at December 31, 2014:
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- Details
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- Definition
Tabular disclosure of credit derivatives which includes information by sellers of credit derivatives, about each credit derivative, or each group of similar credit derivatives, including (a) the nature of the credit derivative - its term, how it arose, the events or circumstances that would require the seller to perform under the credit derivative, and the current status of the payment/performance risk of the credit derivative; (b) the maximum potential amount of future payments (undiscounted) the seller could be required to make under the credit derivative; (c) the current fair value of the credit derivative; and (d) the nature of any recourse provisions under the credit derivative, and any assets held either as collateral or by third parties. A credit derivative is a derivative instrument (1) in which one or more of its underlyings are related to the credit risk of a specified entity (or a group of entities) or an index based on the credit risk of a group of entities and (2) that exposes the seller to potential loss from credit-risk-related events specified in the contract. Examples of credit derivatives within the scope of this paragraph include, but are not limited to, credit default swaps, credit spread options, and credit index products; also includes a hybrid instrument that has an embedded credit derivative (for example, but not limited to, a credit-linked note). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Fair Value Measurements (Tables)
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12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2014
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| Fair Value Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Assets and Liabilities Measured at Fair Value on Recurring Basis | Assets and liabilities measured at fair value on a recurring basis for the years ended December 31, 2014 and 2013 are summarized below.
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| Schedule of Commodity Derivatives | The risk management group reports to the Companies’ Vice President and Treasurer.
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| Reconciliation of Beginning and Ending Net Balances for Assets and Liabilities Measured at Level 3 Fair Value | The table listed below provides a reconciliation of the beginning and ending net balances for assets and liabilities measured at fair value for the years ended December 31, 2014 and 2013 and classified as Level 3 in the fair value hierarchy:
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- Definition
Fair Value Assets Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Table [Text Block] No definition available.
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- Details
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- Definition
Tabular disclosure of quantitative information about the inputs used in the fair value measurement of assets. This disclosure may include, but is not limited to, the fair value of the asset, valuation technique used to measure fair value, the inputs used to measure fair value, the ranges of the inputs, and the weighted averages of the inputs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Variable Interest Entities (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2014
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| Equity Method Investments and Joint Ventures [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Sale and Deconsolidation of a Variable Interest Entity | As a result of the sale, Con Edison Development received net proceeds of $108 million and recognized a pre-tax gain on the sale of $45 million ($26 million, net of tax). The following table summarizes the sale and resultant deconsolidation on the transaction date:
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| Schedule of Assets and Liabilities Included in Consolidated Balance Sheet | At December 31, 2014, Con Edison’s consolidated balance sheet includes $58 million in net assets (as detailed in the table below) and the non-controlling interest of the third party of $9 million related to Texas Solar 4. Earnings for the twelve months ended December 31, 2014 were immaterial.
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| Summary of VIEs | The following table summarizes the VIEs in which Con Edison Development has entered into as of December 31, 2014:
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| X | ||||||||||
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- Definition
Schedule Of Deconsolidation Of Subsidiary Table [Text Block] No definition available.
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| X | ||||||||||
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- Definition
Summary of assets and liabilities included in consolidated balance sheet. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Related Party Transactions (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2014
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| Related Party Transactions [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of Costs of Administrative and Other Services Provided and Received | The costs of administrative and other services provided by CECONY to, and received by it from, Con Edison and its other subsidiaries for the years ended December 31, 2014, 2013 and 2012 were as follows:
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| X | ||||||||||
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- Definition
Schedule Of Related Party Transactions Services Received And Provided By Company Table [Text Block] No definition available.
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| X | ||||||||||
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- Details
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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
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12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Summary Of Significant Accounting Policies [Line Items] | |||
| Annual aggregate depreciation allowance | $ 1,048,000,000 | ||
| Impairment charges | 0 | 0 | 0 |
| Investment gains and losses recognized, time period, years | 15 years | ||
| Other actuarial gains and losses recognized, time period, years | 10 years | ||
| Difference between fair value and expected Market Related Value of plan assets | 20.00% | ||
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Non Utility Plan [Member] | Minimum [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives, (years) | 3 years | ||
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Non Utility Plan [Member] | Maximum [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives, (years) | 30 years | ||
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CECONY [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| AFUDC rates | 1.60% | 4.00% | 6.50% |
| Average depreciation rates | 3.10% | 3.20% | 3.10% |
| Annual aggregate depreciation allowance | $ 993,000,000 | ||
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CECONY [Member] | Electric Generation [Member] | Minimum [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives, (years) | 5 years | ||
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CECONY [Member] | Electric Generation [Member] | Maximum [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives, (years) | 85 years | ||
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CECONY [Member] | Gas [Member] | Minimum [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives, (years) | 5 years | ||
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CECONY [Member] | Gas [Member] | Maximum [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives, (years) | 85 years | ||
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CECONY [Member] | Steam [Member] | Minimum [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives, (years) | 5 years | ||
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CECONY [Member] | Steam [Member] | Maximum [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives, (years) | 80 years | ||
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CECONY [Member] | General [Member] | Minimum [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives, (years) | 5 years | ||
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CECONY [Member] | General [Member] | Maximum [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives, (years) | 55 years | ||
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O&R [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| AFUDC rates | 2.60% | 5.70% | 7.00% |
| Average depreciation rates | 2.90% | 2.80% | 2.90% |
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O&R [Member] | Electric Generation [Member] | Minimum [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives, (years) | 5 years | ||
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O&R [Member] | Electric Generation [Member] | Maximum [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives, (years) | 75 years | ||
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O&R [Member] | Gas [Member] | Minimum [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives, (years) | 5 years | ||
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O&R [Member] | Gas [Member] | Maximum [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives, (years) | 75 years | ||
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O&R [Member] | General [Member] | Minimum [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives, (years) | 5 years | ||
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O&R [Member] | General [Member] | Maximum [Member]
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| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives, (years) | 50 years | ||
| X | ||||||||||
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- Definition
Difference between fair value and expected market related value of plan assets No definition available.
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| X | ||||||||||
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- Definition
Pension actuarial gains and losses recognized time period. No definition available.
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| X | ||||||||||
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- Definition
Pension investment gains and losses recognized time period. No definition available.
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| X | ||||||||||
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- Definition
Public Utilities, Depreciation Allowance, Current Rate Plans No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. No definition available.
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| X | ||||||||||
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- Definition
Effective rate, including composite rate, of cost of financing additions to qualifying regulated assets, commonly called allowance for funds used during construction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Composite depreciation rate for public utility plants in service. No definition available.
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Summary of Significant Accounting Policies - Capitalized Cost of Utility Plant (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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|---|---|---|
| Public Utility, Property, Plant and Equipment [Line Items] | ||
| General | $ 2,465 | $ 2,336 |
| Held for future use | 76 | 73 |
| Construction work in progress | 1,031 | 1,393 |
| NET UTILITY PLANT | 29,326 | 27,795 |
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Electric Generation [Member]
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| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Generation | 451 | 452 |
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Electric Transmission [Member]
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| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Transmission | 2,956 | 2,776 |
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Electric Distribution [Member]
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| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Distribution | 16,361 | 15,277 |
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Gas [Member]
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| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Gas | 5,006 | 4,469 |
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Steam [Member]
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| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Steam | 1,795 | 1,790 |
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General [Member]
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| Public Utility, Property, Plant and Equipment [Line Items] | ||
| General | 1,650 | 1,565 |
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CECONY [Member]
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| Public Utility, Property, Plant and Equipment [Line Items] | ||
| General | 2,265 | 2,154 |
| Held for future use | 65 | 62 |
| Construction work in progress | 971 | 1,303 |
| NET UTILITY PLANT | 27,585 | 26,146 |
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CECONY [Member] | Electric Generation [Member]
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| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Generation | 451 | 452 |
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CECONY [Member] | Electric Transmission [Member]
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| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Transmission | 2,744 | 2,597 |
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CECONY [Member] | Electric Distribution [Member]
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| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Distribution | 15,531 | 14,496 |
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CECONY [Member] | Gas [Member]
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| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Gas | 4,530 | 4,013 |
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CECONY [Member] | Steam [Member]
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| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Steam | 1,795 | 1,790 |
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CECONY [Member] | General [Member]
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| Public Utility, Property, Plant and Equipment [Line Items] | ||
| General | $ 1,498 | $ 1,433 |
| X | ||||||||||
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- Definition
Public Utilities Property Plant And Equipment Steam No definition available.
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| X | ||||||||||
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- Definition
Discloses the period end amount of plants held for future use and whether such amount is included in the utility's rate base. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Period end amount of property, plant and equipment (PPE) related to regulated assets common to business units. No definition available.
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| X | ||||||||||
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- Definition
Period end amount of construction work in progress in public utility. No definition available.
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| X | ||||||||||
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- Definition
Period end amount of property, plant and equipment (PPE) related to utility distribution. No definition available.
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| X | ||||||||||
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- Definition
Period end amount of property, plant and equipment (PPE) related to fuels owned by the public utility. No definition available.
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| X | ||||||||||
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- Definition
Period end amount of property, plant and equipment (PPE) related to generation or processing owned by public utility. No definition available.
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| X | ||||||||||
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- Definition
Period end amount of total net PPE. No definition available.
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| X | ||||||||||
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- Definition
Period end amount of property, plant and equipment (PPE) related to utility transmission owned by public utility. No definition available.
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| X | ||||||||||
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- Details
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Summary of Significant Accounting Policies - Schedule of Total Excise Taxes Recorded in Operating Revenues (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Schedule of Excise Taxes [Line Items] | |||
| Excise taxes | $ 365 | $ 354 | $ 334 |
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CECONY [Member]
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| Schedule of Excise Taxes [Line Items] | |||
| Excise taxes | $ 343 | $ 329 | $ 306 |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The excise taxes collected by a public utility and reported in revenues if the amount of excise taxes is equal to 1 percent or more of such total. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Summary of Significant Accounting Policies - Research and Development Costs (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Research and Development Expenses [Line Items] | |||
| Research and Development Costs | $ 22 | $ 18 | $ 21 |
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CECONY [Member]
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| Research and Development Expenses [Line Items] | |||
| Research and Development Costs | $ 20 | $ 16 | $ 19 |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Summary of Significant Accounting Policies - Earnings Per Common Share (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Earnings Per Share [Abstract] | |||
| Net income for common stock | $ 1,092 | $ 1,062 | $ 1,138 |
| Weighted average common shares outstanding - Basic | 292.9 | 292.9 | 292.9 |
| Add: Incremental shares attributable to effect of potentially dilutive securities | 1.1 | 1.5 | 1.6 |
| Adjusted weighted average common shares outstanding - Diluted | 294.0 | 294.4 | 294.5 |
| Net income for common stock per common share - basic | $ 3.73 | $ 3.62 | $ 3.88 |
| Net income for common stock per common share - diluted | $ 3.71 | $ 3.61 | $ 3.86 |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of contingently issuable shares. Contingently issuable shares are those shares that are issuable for little or no cash contingent on certain conditions being met. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Summary of Significant Accounting Policies - Changes in Accumulated Other Comprehensive Income by Component (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] | |||
| Accumulated OCI, net of taxes | $ (25) | $ (53) | |
| OCI before reclassifications, net of tax | (26) | 21 | |
| Amounts reclassified from accumulated OCI related to pension plan liabilities, net of tax | 6 | 7 | |
| TOTAL OTHER COMPREHENSIVE INCOME, NET OF TAXES | (20) | 28 | 5 |
| Accumulated OCI, net of taxes | (45) | (25) | (53) |
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CECONY [Member]
|
|||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | |||
| Accumulated OCI, net of taxes | (6) | (9) | |
| OCI before reclassifications, net of tax | (6) | 2 | |
| Amounts reclassified from accumulated OCI related to pension plan liabilities, net of tax | 1 | 1 | |
| TOTAL OTHER COMPREHENSIVE INCOME, NET OF TAXES | (5) | 3 | (1) |
| Accumulated OCI, net of taxes | $ (11) | $ (6) | $ (9) |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount after tax, before reclassification adjustments of other comprehensive income (loss). No definition available.
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| X | ||||||||||
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- Definition
Amount after tax and reclassification adjustments of other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount after tax of reclassification adjustment from accumulated other comprehensive (income) loss related to net period benefit cost (credit) for pension and other postretirement defined benefit plans. No definition available.
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Summary of Significant Accounting Policies - Changes in Accumulated Other Comprehensive Income by Component (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2014
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Dec. 31, 2013
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| OCI before reclassifications, Tax | $ 18 | $ (15) |
| Amounts reclassified from accumulated OCI related to pension plan liabilities, Tax | (4) | (5) |
|
CECONY [Member]
|
||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| OCI before reclassifications, Tax | 4 | (1) |
| Amounts reclassified from accumulated OCI related to pension plan liabilities, Tax | $ (1) | $ (1) |
| X | ||||||||||
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- Definition
Other Comprehensive Income Loss Before Reclassifications Tax No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of tax (expense) benefit of reclassification adjustment from accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans. No definition available.
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Regulatory Matters - Summary of Utilities Rate Plans (CECONY-Electric) (Detail) (USD $)
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9 Months Ended | 12 Months Ended | 36 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 24 Months Ended | 12 Months Ended | ||||||||||||||||||||||||||
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Dec. 31, 2014
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Dec. 31, 2013
|
Dec. 31, 2014
CECONY [Member]
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Dec. 31, 2013
CECONY [Member]
|
Dec. 31, 2013
CECONY [Member]
Electric Transmission [Member]
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Dec. 31, 2014
CECONY [Member]
Electric Transmission [Member]
|
Dec. 31, 2013
CECONY [Member]
Electric Transmission [Member]
|
Mar. 31, 2013
CECONY [Member]
Electric Transmission [Member]
|
Dec. 31, 2012
CECONY [Member]
Electric Transmission [Member]
|
Mar. 31, 2012
CECONY [Member]
Electric Transmission [Member]
|
Mar. 31, 2011
CECONY [Member]
Electric Transmission [Member]
|
Mar. 31, 2013
CECONY [Member]
Electric Transmission [Member]
|
Dec. 31, 2014
CECONY [Member]
Electric Transmission [Member]
Maximum [Member]
|
Mar. 31, 2013
CECONY [Member]
Electric Transmission [Member]
Maximum [Member]
|
Mar. 31, 2012
CECONY [Member]
Electric Transmission [Member]
Maximum [Member]
|
Mar. 31, 2011
CECONY [Member]
Electric Transmission [Member]
Maximum [Member]
|
Dec. 31, 2014
CECONY [Member]
Electric Transmission [Member]
T&D [Member]
|
Mar. 31, 2013
CECONY [Member]
Electric Transmission [Member]
T&D [Member]
|
Mar. 31, 2012
CECONY [Member]
Electric Transmission [Member]
T&D [Member]
|
Mar. 31, 2011
CECONY [Member]
Electric Transmission [Member]
T&D [Member]
|
Mar. 31, 2013
CECONY [Member]
Electric Transmission [Member]
ERP [Member]
|
Mar. 31, 2012
CECONY [Member]
Electric Transmission [Member]
ERP [Member]
|
Dec. 31, 2014
CECONY [Member]
Electric Transmission [Member]
Other [Member]
|
Mar. 31, 2013
CECONY [Member]
Electric Transmission [Member]
Other [Member]
|
Mar. 31, 2012
CECONY [Member]
Electric Transmission [Member]
Other [Member]
|
Mar. 31, 2011
CECONY [Member]
Electric Transmission [Member]
Other [Member]
|
Dec. 31, 2014
CECONY [Member]
Electric Transmission [Member]
Storm Hardening [Member]
|
Jan. 31, 2016
CECONY [Member]
Electric Transmission [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2015
CECONY [Member]
Electric Transmission [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2015
CECONY [Member]
Electric Transmission [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2015
CECONY [Member]
Electric Transmission [Member]
Scenario, Forecast [Member]
Maximum [Member]
|
Dec. 31, 2015
CECONY [Member]
Electric Transmission [Member]
Scenario, Forecast [Member]
T&D [Member]
|
Dec. 31, 2015
CECONY [Member]
Electric Transmission [Member]
Scenario, Forecast [Member]
Other [Member]
|
Dec. 31, 2015
CECONY [Member]
Electric Transmission [Member]
Scenario, Forecast [Member]
Storm Hardening [Member]
|
|
| Public Utilities, General Disclosures [Line Items] | ||||||||||||||||||||||||||||||||||
| Deferred revenues | $ 34,000,000 | $ 34,000,000 | $ 59,000,000 | |||||||||||||||||||||||||||||||
| Cost reconciliations, deferred net regulatory assets | 615,000,000 | 604,000,000 | 574,000,000 | 569,000,000 | 35,000,000 | 35,000,000 | ||||||||||||||||||||||||||||
| Base rate changes | (76,200,000) | 287,000,000 | 420,000,000 | 420,000,000 | 124,000,000 | |||||||||||||||||||||||||||||
| Amortizations to income of net regulatory (assets) and liabilities | (75,300,000) | (37,000,000) | ||||||||||||||||||||||||||||||||
| Deferred major storm costs | 107,000,000 | 107,000,000 | 107,000,000 | |||||||||||||||||||||||||||||||
| Retention of annual transmission congestion revenues | 90,000,000 | 90,000,000 | 120,000,000 | 120,000,000 | 120,000,000 | 90,000,000 | ||||||||||||||||||||||||||||
| Potential penalties | 400,000,000 | 350,000,000 | 350,000,000 | 350,000,000 | 400,000,000 | |||||||||||||||||||||||||||||
| Negative revenue adjustments | 5,000,000 | 0 | 0 | |||||||||||||||||||||||||||||||
| Cost reconciliations, deferred net regulatory liabilities | 910,000,000 | 871,000,000 | 863,000,000 | 825,000,000 | 57,000,000 | 146,000,000 | ||||||||||||||||||||||||||||
| Deferred regulatory liability | 7,000,000 | 7,000,000 | 16,869,000,000 | 15,414,000,000 | 14,742,000,000 | 13,818,000,000 | 115,000,000 | 25,000,000 | 2,034,000,000 | 1,650,000,000 | 1,565,000,000 | 1,487,000,000 | 89,000,000 | 17,401,000,000 | 2,102,000,000 | 177,000,000 | ||||||||||||||||||
| Average rate base | 17,323,000,000 | 16,826,000,000 | 15,987,000,000 | 14,887,000,000 | 18,113,000,000 | |||||||||||||||||||||||||||||
| Weighted average cost of capital (after-tax) | 7.05% | 7.76% | 7.76% | 7.76% | 7.08% | |||||||||||||||||||||||||||||
| Authorized return on common equity | 9.20% | 10.15% | 10.15% | 10.15% | 10.00% | 9.20% | ||||||||||||||||||||||||||||
| Earnings sharing percentage | 9.80% | 10.65% | 10.65% | 11.15% | 10.65% | 9.80% | 9.80% | |||||||||||||||||||||||||||
| Authorized return on common equity, austerity measures | 13,000,000 | 20,000,000 | 27,000,000 | |||||||||||||||||||||||||||||||
| Earnings sharing, threshold limit | $ 0 | $ 17,500,000 | ||||||||||||||||||||||||||||||||
| Cost of long-term debt | 5.17% | 5.65% | 5.65% | 5.65% | 5.65% | 5.23% | 5.23% | |||||||||||||||||||||||||||
| Common equity ratio | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | ||||||||||||||||||||||||||||
| X | ||||||||||
|
- Definition
Average Net Utility Plant Rates No definition available.
|
| X | ||||||||||
|
- Definition
Base rate increase decrease. No definition available.
|
| X | ||||||||||
|
- Definition
Common equity ratio percentage. No definition available.
|
| X | ||||||||||
|
- Definition
Deferred major storm costs. No definition available.
|
| X | ||||||||||
|
- Definition
Impact On Earnings Had Lag Period Been Adjusted No definition available.
|
| X | ||||||||||
|
- Definition
Potential Penalty Expense No definition available.
|
| X | ||||||||||
|
- Definition
Rate Of Return On Common Equity No definition available.
|
| X | ||||||||||
|
- Definition
Regulatory matters austerity measures amount. No definition available.
|
| X | ||||||||||
|
- Definition
Regulatory Matters Average Base Rate No definition available.
|
| X | ||||||||||
|
- Definition
Retention Of Annual Transmission Congestion Revenues No definition available.
|
| X | ||||||||||
|
- Definition
Revenue Requirement Earnings Percentage No definition available.
|
| X | ||||||||||
|
- Definition
Revenue Sharing Threshold Limit No definition available.
|
| X | ||||||||||
|
- Definition
Weighted Average Cost Of Capital No definition available.
|
| X | ||||||||||
|
- Definition
Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences derived regulatory assets and liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred tax liability attributable to taxable temporary differences from regulatory assets and liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of operating expense for depreciation and amortization of regulated operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Regulatory Matters - Summary of Utilities Rate Plans (CECONY-Electric) (Parenthetical) (Detail) (Electric Transmission [Member], CECONY [Member], USD $)
In Millions, unless otherwise specified |
9 Months Ended | 12 Months Ended | |||||
|---|---|---|---|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2014
|
Mar. 31, 2013
|
Dec. 31, 2014
PJM Interconnection L.L.C. [Member]
|
Dec. 31, 2015
Scenario, Forecast [Member]
|
Dec. 31, 2014
Storm Reserve [Member]
|
Dec. 31, 2015
Storm Reserve [Member]
Scenario, Forecast [Member]
|
|
| Public Utilities, General Disclosures [Line Items] | |||||||
| Potential refund from customers | $ 249 | ||||||
| Revenue requirement | 21 | 21 | |||||
| Elimination of temporary base rate increase through credits | 134 | ||||||
| Base rate change deferral regulatory liability impact | 30 | ||||||
| Recovery of charges pursuant to tariff of PJM | $ 20 | ||||||
| Deferrals for property taxes limitation from rates | 80.00% | 90.00% | |||||
| Annual maximum property tax adjustment allowed on required rate of return | Not more than a 10 basis point | ||||||
| X | ||||||||||
|
- Definition
Base rate change deferral regulatory liability impact. No definition available.
|
| X | ||||||||||
|
- Definition
Elimination of temporary base rate increase. No definition available.
|
| X | ||||||||||
|
- Definition
Deferrals for property taxes limitation from rates No definition available.
|
| X | ||||||||||
|
- Definition
Annual maximum property tax adjustment allowed on required rate of return. No definition available.
|
| X | ||||||||||
|
- Definition
Revenue Requirement No definition available.
|
| X | ||||||||||
|
- Definition
Tariff recovery of charges. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of refund payments made to customers during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Regulatory Matters - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 1 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2014
Electric Transmission [Member]
CECONY [Member]
|
Mar. 31, 2013
Electric Transmission [Member]
CECONY [Member]
|
Mar. 31, 2012
Electric Transmission [Member]
CECONY [Member]
|
Mar. 31, 2011
Electric Transmission [Member]
CECONY [Member]
|
Jun. 30, 2014
Electric Transmission [Member]
O&R [Member]
|
Jun. 30, 2013
Electric Transmission [Member]
O&R [Member]
|
Dec. 31, 2014
Gas [Member]
CECONY [Member]
|
Sep. 30, 2013
Gas [Member]
CECONY [Member]
|
Sep. 30, 2012
Gas [Member]
CECONY [Member]
|
Sep. 30, 2011
Gas [Member]
CECONY [Member]
|
Oct. 31, 2012
Gas [Member]
O&R [Member]
|
Oct. 31, 2011
Gas [Member]
O&R [Member]
|
Oct. 31, 2010
Gas [Member]
O&R [Member]
|
Jan. 31, 2016
Scenario, Forecast [Member]
Electric Transmission [Member]
CECONY [Member]
|
Dec. 31, 2015
Scenario, Forecast [Member]
Electric Transmission [Member]
CECONY [Member]
|
Nov. 01, 2015
Scenario, Forecast [Member]
Electric Transmission [Member]
O&R [Member]
|
Jun. 30, 2015
Scenario, Forecast [Member]
Electric Transmission [Member]
O&R [Member]
|
Dec. 31, 2016
Scenario, Forecast [Member]
Gas [Member]
CECONY [Member]
|
Dec. 31, 2015
Scenario, Forecast [Member]
Gas [Member]
CECONY [Member]
|
Nov. 01, 2015
Scenario, Forecast [Member]
Gas [Member]
O&R [Member]
|
|
| Public Utilities, General Disclosures [Line Items] | ||||||||||||||||||||
| Electric rate increases | $ 368.0 | $ 33.4 | $ 40.7 | |||||||||||||||||
| Return on common equity | 9.20% | 10.15% | 10.15% | 10.15% | 9.50% | 9.40% | 9.30% | 9.60% | 9.60% | 9.60% | 10.40% | 10.40% | 10.40% | 10.00% | 9.20% | 9.75% | 9.60% | 9.30% | 9.30% | 9.75% |
| Common equity ratio | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% |
| X | ||||||||||
|
- Definition
Common equity ratio percentage. No definition available.
|
| X | ||||||||||
|
- Definition
Electric Rate Increase No definition available.
|
| X | ||||||||||
|
- Definition
Rate Of Return On Common Equity No definition available.
|
| X | ||||||||||
|
- Details
|
|
Regulatory Matters - Summary of Utilities Rate Plans (CECONY-Gas) (Detail) (USD $)
|
12 Months Ended | 36 Months Ended | 12 Months Ended | 36 Months Ended | 12 Months Ended | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2014
CECONY [Member]
|
Dec. 31, 2013
CECONY [Member]
|
Dec. 31, 2014
CECONY [Member]
Gas [Member]
|
Dec. 31, 2013
CECONY [Member]
Gas [Member]
|
Sep. 30, 2013
CECONY [Member]
Gas [Member]
|
Dec. 31, 2012
CECONY [Member]
Gas [Member]
|
Sep. 30, 2012
CECONY [Member]
Gas [Member]
|
Sep. 30, 2011
CECONY [Member]
Gas [Member]
|
Sep. 30, 2013
CECONY [Member]
Gas [Member]
|
Dec. 31, 2016
CECONY [Member]
Gas [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2015
CECONY [Member]
Gas [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2016
CECONY [Member]
Gas [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2014
CECONY [Member]
Gas [Member]
Gas Delivery [Member]
|
Sep. 30, 2013
CECONY [Member]
Gas [Member]
Gas Delivery [Member]
|
Sep. 30, 2012
CECONY [Member]
Gas [Member]
Gas Delivery [Member]
|
Sep. 30, 2011
CECONY [Member]
Gas [Member]
Gas Delivery [Member]
|
Dec. 31, 2016
CECONY [Member]
Gas [Member]
Gas Delivery [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2015
CECONY [Member]
Gas [Member]
Gas Delivery [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2014
CECONY [Member]
Gas [Member]
Storm Hardening [Member]
|
Dec. 31, 2016
CECONY [Member]
Gas [Member]
Storm Hardening [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2015
CECONY [Member]
Gas [Member]
Storm Hardening [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2014
CECONY [Member]
Maximum [Member]
Gas [Member]
|
Sep. 30, 2013
CECONY [Member]
Maximum [Member]
Gas [Member]
|
Sep. 30, 2012
CECONY [Member]
Maximum [Member]
Gas [Member]
|
Sep. 30, 2011
CECONY [Member]
Maximum [Member]
Gas [Member]
|
Dec. 31, 2016
CECONY [Member]
Maximum [Member]
Gas [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2015
CECONY [Member]
Maximum [Member]
Gas [Member]
Scenario, Forecast [Member]
|
|
| Public Utilities, General Disclosures [Line Items] | |||||||||||||||||||||||||||||
| Base rate changes | $ (54,600,000) | $ 47,000,000 | $ 48,000,000 | $ 47,000,000 | $ 56,800,000 | $ 38,600,000 | |||||||||||||||||||||||
| Amortizations to income of net regulatory (assets) and liabilities | (53,100,000) | 4,000,000 | |||||||||||||||||||||||||||
| Percentage of revenue reserve | 15.00% | 25.00% | 25.00% | 25.00% | 15.00% | 15.00% | |||||||||||||||||||||||
| Amount of revenues retained | 70,000,000 | 64,000,000 | 57,000,000 | 65,000,000 | 58,000,000 | 58,000,000 | 58,000,000 | 65,000,000 | 65,000,000 | ||||||||||||||||||||
| Deferred revenues | 28,000,000 | 36,000,000 | 22,000,000 | ||||||||||||||||||||||||||
| Potential penalties | 33,000,000 | 12,600,000 | 12,600,000 | 12,600,000 | 56,000,000 | 44,000,000 | |||||||||||||||||||||||
| Recognize penalties | 0 | ||||||||||||||||||||||||||||
| Cost reconciliation, deferred net regulatory assets | 615,000,000 | 604,000,000 | 574,000,000 | 569,000,000 | 38,000,000 | 26,000,000 | 9,000,000 | ||||||||||||||||||||||
| Net utility plant reconciliations | 3,899,000,000 | 3,346,000,000 | 3,148,000,000 | 2,934,000,000 | 4,698,000,000 | 4,258,000,000 | 3,000,000 | 30,000,000 | 8,000,000 | ||||||||||||||||||||
| Cost reconciliations, deferred net regulatory liabilities | 910,000,000 | 871,000,000 | 863,000,000 | 825,000,000 | 0 | 9,500,000 | 2,900,000 | ||||||||||||||||||||||
| Average rate base | 3,521,000,000 | 3,434,000,000 | 3,245,000,000 | 3,027,000,000 | 4,236,000,000 | 3,863,000,000 | |||||||||||||||||||||||
| Authorized return on common equity, austerity measures | 2,000,000 | 4,000,000 | |||||||||||||||||||||||||||
| Weighted average cost of capital (after-tax) | 7.10% | 7.46% | 7.46% | 7.46% | 7.21% | 7.13% | |||||||||||||||||||||||
| Authorized return on common equity | 9.30% | 9.60% | 9.60% | 9.60% | 9.30% | 9.30% | |||||||||||||||||||||||
| Earnings sharing percentage | 9.90% | 10.15% | 10.15% | 10.35% | 10.15% | 9.90% | 9.90% | 9.90% | |||||||||||||||||||||
| Cost of long-term debt | 5.17% | 5.57% | 5.57% | 5.57% | 5.57% | 5.39% | 5.23% | 5.39% | |||||||||||||||||||||
| Common equity ratio | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | |||||||||||||||||||||||
| Negative revenue adjustments | $ 0 | $ 0 | |||||||||||||||||||||||||||
| X | ||||||||||
|
- Definition
Average Net Utility Plant Rates No definition available.
|
| X | ||||||||||
|
- Definition
Base rate increase decrease. No definition available.
|
| X | ||||||||||
|
- Definition
Common equity ratio percentage. No definition available.
|
| X | ||||||||||
|
- Definition
Impact On Earnings Had Lag Period Been Adjusted No definition available.
|
| X | ||||||||||
|
- Definition
Penalty expense recognized. No definition available.
|
| X | ||||||||||
|
- Definition
Percentage of Revenue Reserve No definition available.
|
| X | ||||||||||
|
- Definition
Potential Penalty Expense No definition available.
|
| X | ||||||||||
|
- Definition
Rate Of Return On Common Equity No definition available.
|
| X | ||||||||||
|
- Definition
Regulatory matters austerity measures amount. No definition available.
|
| X | ||||||||||
|
- Definition
Regulatory Matters Average Base Rate No definition available.
|
| X | ||||||||||
|
- Definition
Revenue Requirement Earnings Percentage No definition available.
|
| X | ||||||||||
|
- Definition
Weighted Average Cost Of Capital No definition available.
|
| X | ||||||||||
|
- Definition
Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences derived regulatory assets and liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred tax liability attributable to taxable temporary differences from regulatory assets and liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
A segregation of retained earnings which is unavailable for dividend distribution. Includes also retained earnings appropriated for loss contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of operating expense for depreciation and amortization of regulated operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Regulatory Matters - Summary of Utilities Rate Plans (CECONY-Gas) (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2014
Gas [Member]
CECONY [Member]
|
Dec. 31, 2013
Gas [Member]
CECONY [Member]
|
Dec. 31, 2016
Scenario, Forecast [Member]
Gas [Member]
CECONY [Member]
|
|
| Public Utilities, General Disclosures [Line Items] | ||||
| Potential refund from customers | $ 32 | |||
| Other regulatory liabilities | $ 105 | $ 32 | ||
| Difference in property taxes | 90.00% | 80.00% | ||
| Maximum impact on return on common equity and deferral of facility relocation expenses | Not more than a 10 basis point | |||
| X | ||||||||||
|
- Definition
Base Points Adjustment To Required Rate Of Return To Adjust For Lack Of Liquidity No definition available.
|
| X | ||||||||||
|
- Definition
Other Regulatory Liabilities No definition available.
|
| X | ||||||||||
|
- Definition
Property Tax Deferrals Rate Difference No definition available.
|
| X | ||||||||||
|
- Definition
Amount of refund payments made to customers during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Regulatory Matters - Summary of Utilities Rate Plans (CECONY-Steam) (Detail) (USD $)
|
12 Months Ended | 36 Months Ended | 12 Months Ended | 36 Months Ended | 12 Months Ended | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2014
CECONY [Member]
|
Dec. 31, 2013
CECONY [Member]
|
Dec. 31, 2014
CECONY [Member]
Steam [Member]
|
Dec. 31, 2013
CECONY [Member]
Steam [Member]
|
Sep. 30, 2013
CECONY [Member]
Steam [Member]
|
Dec. 31, 2012
CECONY [Member]
Steam [Member]
|
Sep. 30, 2012
CECONY [Member]
Steam [Member]
|
Sep. 30, 2011
CECONY [Member]
Steam [Member]
|
Sep. 30, 2013
CECONY [Member]
Steam [Member]
|
Dec. 31, 2014
CECONY [Member]
Steam [Member]
Production [Member]
|
Sep. 30, 2013
CECONY [Member]
Steam [Member]
Production [Member]
|
Sep. 30, 2012
CECONY [Member]
Steam [Member]
Production [Member]
|
Sep. 30, 2011
CECONY [Member]
Steam [Member]
Production [Member]
|
Dec. 31, 2014
CECONY [Member]
Steam [Member]
Distribution [Member]
|
Sep. 30, 2013
CECONY [Member]
Steam [Member]
Distribution [Member]
|
Sep. 30, 2012
CECONY [Member]
Steam [Member]
Distribution [Member]
|
Sep. 30, 2011
CECONY [Member]
Steam [Member]
Distribution [Member]
|
Dec. 31, 2016
CECONY [Member]
Steam [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2015
CECONY [Member]
Steam [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2016
CECONY [Member]
Steam [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2016
CECONY [Member]
Steam [Member]
Scenario, Forecast [Member]
Production [Member]
|
Dec. 31, 2015
CECONY [Member]
Steam [Member]
Scenario, Forecast [Member]
Production [Member]
|
Dec. 31, 2016
CECONY [Member]
Steam [Member]
Scenario, Forecast [Member]
Distribution [Member]
|
Dec. 31, 2015
CECONY [Member]
Steam [Member]
Scenario, Forecast [Member]
Distribution [Member]
|
Dec. 31, 2014
CECONY [Member]
Maximum [Member]
Steam [Member]
|
Sep. 30, 2013
CECONY [Member]
Maximum [Member]
Steam [Member]
|
Sep. 30, 2012
CECONY [Member]
Maximum [Member]
Steam [Member]
|
Sep. 30, 2011
CECONY [Member]
Maximum [Member]
Steam [Member]
|
Dec. 31, 2016
CECONY [Member]
Maximum [Member]
Steam [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2015
CECONY [Member]
Maximum [Member]
Steam [Member]
Scenario, Forecast [Member]
|
|
| Public Utilities, General Disclosures [Line Items] | ||||||||||||||||||||||||||||||||
| Base rate changes | $ (22,400,000) | $ 17,800,000 | $ 49,500,000 | $ 49,500,000 | $ 20,300,000 | $ 19,800,000 | ||||||||||||||||||||||||||
| Base rate change through surcharge | 31,700,000 | |||||||||||||||||||||||||||||||
| Potential penalties | 1,000,000 | 1,000,000 | 1,000,000 | 1,000,000 | 1,000,000 | 1,000,000 | ||||||||||||||||||||||||||
| Amortizations to income of net regulatory (assets) and liabilities | (20,100,000) | 37,000,000 | ||||||||||||||||||||||||||||||
| Negative revenue adjustments | 0 | 0 | 0 | |||||||||||||||||||||||||||||
| Cost reconciliation, deferred net regulatory liabilities | 910,000,000 | 871,000,000 | 863,000,000 | 825,000,000 | 42,000,000 | 17,000,000 | 12,000,000 | |||||||||||||||||||||||||
| Deferred regulatory liability | 1,100,000 | 0 | 200,000 | 1,752,000,000 | 433,000,000 | 426,000,000 | 415,000,000 | 6,000,000 | 543,000,000 | 534,000,000 | 521,000,000 | 1,720,000,000 | 1,732,000,000 | 25,000,000 | 11,000,000 | |||||||||||||||||
| Average rate base | 1,511,000,000 | 1,613,000,000 | 1,603,000,000 | 1,589,000,000 | 1,604,000,000 | 1,547,000,000 | ||||||||||||||||||||||||||
| Authorized return on common equity, austerity measures | 2,000,000 | 3,000,000 | ||||||||||||||||||||||||||||||
| Earnings sharing, threshold limit | $ 0 | $ 500,000 | ||||||||||||||||||||||||||||||
| Weighted average cost of capital (after-tax) | 7.10% | 7.46% | 7.46% | 7.46% | 7.21% | 7.13% | ||||||||||||||||||||||||||
| Cost of long-term debt | 5.17% | 5.57% | 5.57% | 5.57% | 5.57% | 5.39% | 5.23% | 5.39% | ||||||||||||||||||||||||
| Authorized return on common equity | 9.30% | 9.60% | 9.60% | 9.60% | 9.30% | 9.30% | ||||||||||||||||||||||||||
| Common equity ratio | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | 48.00% | ||||||||||||||||||||||||||
| Earnings sharing percentage | 9.90% | 10.15% | 10.15% | 10.35% | 10.15% | 9.90% | 9.90% | 9.90% | ||||||||||||||||||||||||
| X | ||||||||||
|
- Definition
Average Net Utility Plant Rates No definition available.
|
| X | ||||||||||
|
- Definition
Base rate change through surcharge. No definition available.
|
| X | ||||||||||
|
- Definition
Base rate increase decrease. No definition available.
|
| X | ||||||||||
|
- Definition
Common equity ratio percentage. No definition available.
|
| X | ||||||||||
|
- Definition
Impact On Earnings Had Lag Period Been Adjusted No definition available.
|
| X | ||||||||||
|
- Definition
Potential Penalty Expense No definition available.
|
| X | ||||||||||
|
- Definition
Rate Of Return On Common Equity No definition available.
|
| X | ||||||||||
|
- Definition
Regulatory matters austerity measures amount. No definition available.
|
| X | ||||||||||
|
- Definition
Regulatory Matters Average Base Rate No definition available.
|
| X | ||||||||||
|
- Definition
Revenue Requirement Earnings Percentage No definition available.
|
| X | ||||||||||
|
- Definition
Revenue Sharing Threshold Limit No definition available.
|
| X | ||||||||||
|
- Definition
Weighted Average Cost Of Capital No definition available.
|
| X | ||||||||||
|
- Definition
Amount of deferred tax liability attributable to taxable temporary differences from regulatory assets and liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of operating expense for depreciation and amortization of regulated operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Regulatory Matters - Summary of Utilities Rate Plans (CECONY-Steam) (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||||
|---|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2014
Steam [Member]
CECONY [Member]
|
Dec. 31, 2013
Steam [Member]
CECONY [Member]
|
Sep. 30, 2013
Steam [Member]
CECONY [Member]
|
Dec. 31, 2016
Scenario, Forecast [Member]
Steam [Member]
CECONY [Member]
|
|
| Public Utilities, General Disclosures [Line Items] | |||||
| Potential refund from customers | $ 6 | ||||
| Other regulatory liabilities | $ 105 | $ 8 | |||
| Difference in property taxes | 90.00% | 80.00% | |||
| Maximum impact on return on common equity and deferral of facility relocation expenses | Not more than a 10 basis point | ||||
| X | ||||||||||
|
- Definition
Base Points Adjustment To Required Rate Of Return To Adjust For Lack Of Liquidity No definition available.
|
| X | ||||||||||
|
- Definition
Other Regulatory Liabilities No definition available.
|
| X | ||||||||||
|
- Definition
Property Tax Deferrals Rate Difference No definition available.
|
| X | ||||||||||
|
- Definition
Amount of refund payments made to customers during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Regulatory Matters - Summary of Utilities Rate Plans (O&R New York-Electric) (Detail) (O&R [Member], Electric Transmission [Member], USD $)
|
12 Months Ended | 0 Months Ended | 12 Months Ended | 36 Months Ended | 12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2014
|
Jun. 30, 2014
|
Dec. 31, 2013
|
Jun. 30, 2013
|
Dec. 31, 2012
|
Jun. 30, 2014
Maximum [Member]
|
Jun. 30, 2013
Maximum [Member]
|
Nov. 01, 2015
Scenario, Forecast [Member]
|
Jun. 30, 2015
Scenario, Forecast [Member]
|
Jun. 30, 2015
Scenario, Forecast [Member]
|
Jun. 30, 2015
Scenario, Forecast [Member]
Maximum [Member]
|
|
| Public Utilities, General Disclosures [Line Items] | |||||||||||
| Base rate changes | $ 8,800,000 | $ 19,400,000 | $ 15,200,000 | ||||||||
| Amortizations to income of net regulatory (assets) and liabilities | (32,200,000) | ||||||||||
| Deferred revenues | (3,400,000) | 3,200,000 | 2,600,000 | ||||||||
| Potential penalties | 3,000,000 | 3,000,000 | 3,000,000 | ||||||||
| Negative revenue adjustments | 0 | 0 | 0 | ||||||||
| Recognition of deferred expenses | (200,000) | 4,100,000 | 7,800,000 | ||||||||
| Deferred regulatory liability | (2,300,000) | 704,000,000 | (1,100,000) | 678,000,000 | 4,200,000 | 753,000,000 | |||||
| Average rate base | 708,000,000 | 671,000,000 | 759,000,000 | ||||||||
| Weighted average cost of capital (after-tax) | 7.65% | 7.61% | 7.48% | ||||||||
| Authorized return on common equity | 9.50% | 9.40% | 9.75% | 9.60% | |||||||
| Earnings sharing, threshold limit | $ 1,000,000 | ||||||||||
| Cost of long-term debt | 6.07% | 6.07% | 5.64% | 5.64% | |||||||
| Common equity ratio | 48.00% | 48.00% | 48.00% | 48.00% | |||||||
| X | ||||||||||
|
- Definition
Average Net Utility Plant Rates No definition available.
|
| X | ||||||||||
|
- Definition
Base rate increase decrease. No definition available.
|
| X | ||||||||||
|
- Definition
Common equity ratio percentage. No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Expense Recognized No definition available.
|
| X | ||||||||||
|
- Definition
Impact On Earnings Had Lag Period Been Adjusted No definition available.
|
| X | ||||||||||
|
- Definition
Percentage Of Debt Securities Amortized Cost Based No definition available.
|
| X | ||||||||||
|
- Definition
Potential Penalty Expense No definition available.
|
| X | ||||||||||
|
- Definition
Rate Of Return On Common Equity No definition available.
|
| X | ||||||||||
|
- Definition
Regulatory Matters Average Base Rate No definition available.
|
| X | ||||||||||
|
- Definition
Revenue Sharing Threshold Limit No definition available.
|
| X | ||||||||||
|
- Definition
Weighted Average Cost Of Capital No definition available.
|
| X | ||||||||||
|
- Definition
Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of operating expense for depreciation and amortization of regulated operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Regulatory Matters - Summary of Utilities Rate Plans (O&R New York-Gas) (Detail) (USD $)
|
12 Months Ended | 36 Months Ended | |||||
|---|---|---|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Oct. 31, 2012
|
Oct. 31, 2011
|
Oct. 31, 2010
|
Oct. 31, 2012
|
|
| Public Utilities, General Disclosures [Line Items] | |||||||
| Cost reconciliations, deferred net regulatory assets | $ 615,000,000 | $ 604,000,000 | |||||
|
O&R [Member] | Gas [Member]
|
|||||||
| Public Utilities, General Disclosures [Line Items] | |||||||
| Base rate changes | 4,600,000 | 9,000,000 | 9,000,000 | ||||
| Base rate change through surcharge | 4,300,000 | ||||||
| Amortizations to income of net regulatory (assets) and liabilities | (2,000,000) | ||||||
| Deferred revenues | (100,000) | 700,000 | 4,700,000 | ||||
| Negative revenue adjustments | 0 | 0 | 0 | ||||
| Cost reconciliations, deferred net regulatory assets | 8,300,000 | 8,300,000 | 700,000 | ||||
| Net utility plant reconciliations | 0 | 0 | 700,000 | ||||
| Average rate base | 309,000,000 | 296,000,000 | 280,000,000 | ||||
| Weighted average cost of capital (after-tax) | 8.49% | 8.49% | 8.49% | ||||
| Authorized return on common equity | 10.40% | 10.40% | 10.40% | ||||
| Earnings sharing percentage | 11.40% | 11.40% | 11.40% | 11.40% | |||
| Cost of long-term debt | 6.81% | 6.81% | 6.81% | 6.81% | |||
| Common equity ratio | 48.00% | 48.00% | 48.00% | ||||
|
O&R [Member] | Gas [Member] | Maximum [Member]
|
|||||||
| Public Utilities, General Disclosures [Line Items] | |||||||
| Potential penalties | $ 1,400,000 | $ 1,400,000 | $ 1,400,000 | ||||
| X | ||||||||||
|
- Definition
Average Net Utility Plant Rates No definition available.
|
| X | ||||||||||
|
- Definition
Base rate change through surcharge. No definition available.
|
| X | ||||||||||
|
- Definition
Base rate increase decrease. No definition available.
|
| X | ||||||||||
|
- Definition
Common equity ratio percentage. No definition available.
|
| X | ||||||||||
|
- Definition
Impact On Earnings Had Lag Period Been Adjusted No definition available.
|
| X | ||||||||||
|
- Definition
Percentage Of Debt Securities Amortized Cost Based No definition available.
|
| X | ||||||||||
|
- Definition
Potential Penalty Expense No definition available.
|
| X | ||||||||||
|
- Definition
Rate Of Return On Common Equity No definition available.
|
| X | ||||||||||
|
- Definition
Regulatory Matters Average Base Rate No definition available.
|
| X | ||||||||||
|
- Definition
Revenue Requirement Earnings Percentage No definition available.
|
| X | ||||||||||
|
- Definition
Weighted Average Cost Of Capital No definition available.
|
| X | ||||||||||
|
- Definition
Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences derived regulatory assets and liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of operating expense for depreciation and amortization of regulated operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Regulatory Matters - Summary of Utilities Rate Plans (Rockland Electric Company (RECO)) (Detail) (Rockland Electric Company (RECO) [Member], USD $)
|
12 Months Ended | 48 Months Ended | 51 Months Ended | 12 Months Ended | 36 Months Ended | 48 Months Ended | |||
|---|---|---|---|---|---|---|---|---|---|
|
Apr. 30, 2014
|
Apr. 30, 2013
|
Apr. 30, 2012
|
Apr. 30, 2011
|
Apr. 30, 2014
|
Jul. 31, 2014
|
Jul. 31, 2015
Scenario, Forecast [Member]
|
Jul. 31, 2015
Scenario, Forecast [Member]
|
Jul. 31, 2015
Scenario, Forecast [Member]
|
|
| Public Utilities, General Disclosures [Line Items] | |||||||||
| Base rate changes | $ 9.8 | $ 13.0 | |||||||
| Amortizations to income of net regulatory (assets) and liabilities | (3.9) | (4.9) | 0.4 | (25.6) | |||||
| Average rate base | $ 148.6 | $ 148.6 | $ 148.6 | $ 148.6 | $ 172.2 | ||||
| Weighted average cost of capital (after-tax) | 8.21% | 8.21% | 8.21% | 8.21% | 7.83% | ||||
| Authorized return on common equity | 10.30% | 10.30% | 10.30% | 10.30% | 9.75% | ||||
| Cost of long-term debt | 6.16% | 6.16% | 6.16% | 6.16% | 6.16% | 5.89% | 5.89% | 5.89% | |
| Common equity ratio | 50.00% | 50.00% | 50.00% | 50.00% | 50.00% | ||||
| X | ||||||||||
|
- Definition
Base rate increase decrease. No definition available.
|
| X | ||||||||||
|
- Definition
Common equity ratio percentage. No definition available.
|
| X | ||||||||||
|
- Definition
Percentage Of Debt Securities Amortized Cost Based No definition available.
|
| X | ||||||||||
|
- Definition
Rate Of Return On Common Equity No definition available.
|
| X | ||||||||||
|
- Definition
Regulatory Matters Average Base Rate No definition available.
|
| X | ||||||||||
|
- Definition
Weighted Average Cost Of Capital No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of operating expense for depreciation and amortization of regulated operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Regulatory Matters - Summary of Utilities Rate Plans (Pike County Light & Power Company (Pike)-Electric) (Detail) (Pike County Light & Power Company (Pike) [Member], Electric Transmission [Member], USD $)
|
12 Months Ended | 60 Months Ended | 12 Months Ended | 60 Months Ended |
|---|---|---|---|---|
|
Mar. 31, 2010
|
Mar. 31, 2014
|
Aug. 31, 2015
Scenario, Forecast [Member]
|
Aug. 31, 2015
Scenario, Forecast [Member]
|
|
| Public Utilities, General Disclosures [Line Items] | ||||
| Base rate changes | $ 900,000 | $ 1,250,000 | ||
| Amortization to income of net regulatory (assets) and liabilities | $ 100,000 | $ (70,000) |
| X | ||||||||||
|
- Definition
Base rate increase decrease. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of operating expense for depreciation and amortization of regulated operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Regulatory Matters - Summary of Utilities Rate Plans (Pike-Gas) (Detail) (Pike County Light & Power Company (Pike) [Member], Gas [Member], USD $)
|
12 Months Ended | |
|---|---|---|
|
Mar. 31, 2010
|
Aug. 31, 2015
Scenario, Forecast [Member]
|
|
| Public Utilities, General Disclosures [Line Items] | ||
| Base rate changes | $ 300,000 | $ 100,000 |
| X | ||||||||||
|
- Definition
Base rate increase decrease. No definition available.
|
| X | ||||||||||
|
- Details
|
|
Regulatory Matters - Other Regulatory Matters - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|
| Public Utilities, General Disclosures [Line Items] | ||
| Revenues from electric | $ 249 | |
| Revenues from gas | 32 | |
| Revenues from steam service | 6 | |
| Potential refund to customers | 1,675 | |
| Overcharges of construction expenditures | 208 | |
| Other regulatory liabilities | 105 | |
| Regulatory liabilities | 187 | 148 |
|
CECONY [Member]
|
||
| Public Utilities, General Disclosures [Line Items] | ||
| Response and restoration costs | 503 | |
| Capital expenditures | 148 | |
| Regulatory liabilities | 142 | 107 |
|
O&R [Member]
|
||
| Public Utilities, General Disclosures [Line Items] | ||
| Response and restoration costs | 91 | |
| Capital expenditures | 15 | |
|
Storm Damage [Member]
|
||
| Public Utilities, General Disclosures [Line Items] | ||
| Number of customers interrupted electric distribution service | 1,400,000 | |
|
Net Unbilled Revenue Deferrals [Member]
|
||
| Public Utilities, General Disclosures [Line Items] | ||
| Regulatory liabilities | $ 138 | $ 133 |
|
Net Electric Deferrals [Member]
|
||
| Public Utilities, General Disclosures [Line Items] | ||
| Amortization period | 10 years |
| X | ||||||||||
|
- Definition
Amortization Period No definition available.
|
| X | ||||||||||
|
- Definition
Capital Expenditures No definition available.
|
| X | ||||||||||
|
- Definition
Number Of Customers No definition available.
|
| X | ||||||||||
|
- Definition
Other Regulatory Liabilities No definition available.
|
| X | ||||||||||
|
- Definition
Potential Refund To Customers No definition available.
|
| X | ||||||||||
|
- Definition
Other costs incurred and are directly related to construction and development services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The amount of regulated power revenues recognized during the period. No definition available.
|
| X | ||||||||||
|
- Definition
The amount of regulated gas operating revenues recognized during the period. No definition available.
|
| X | ||||||||||
|
- Definition
The amount of regulated steam operating revenues recognized during the period. No definition available.
|
| X | ||||||||||
|
- Definition
The amount for the individual regulatory current liability as itemized in a table of regulatory current liabilities as of the end of the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Regulatory Matters - Regulatory Assets and Liabilities (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Regulatory assets | ||
| Regulatory assets - noncurrent | $ 9,156 | $ 7,201 |
| Regulatory assets - current | 148 | 29 |
| Total Regulatory Assets | 9,304 | 7,230 |
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 1,993 | 1,728 |
| Regulatory liabilities - current | 187 | 148 |
| Total Regulatory Liabilities | 2,180 | 1,876 |
|
Allowance for Cost of Removal Less Salvage [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 598 | 540 |
|
2014 Rate Plan Rate Base Revenue Deferrals [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 155 | |
|
Net Unbilled Revenue Deferrals [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 138 | 133 |
|
Prudence Proceeding [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 105 | 40 |
|
Property Tax Refunds [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 87 | 130 |
|
Long-Term Interest Rate Reconciliation [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 78 | 105 |
|
Carrying Charges on Repair Allowance and Bonus Depreciation [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 58 | 88 |
|
New York State Income Tax Rate Change [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 62 | |
|
World Trade Center Settlement Proceeds [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 41 | 62 |
|
Carrying Charges on Transmission and Distribution Net Plant [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 21 | 28 |
|
Electric Excess Earnings [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 19 | 22 |
|
Other [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 290 | 208 |
|
Refundable Energy Costs - Current [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - current | 128 | 100 |
|
Revenue Decoupling Mechanism [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - current | 30 | 34 |
|
Future Income Tax [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - current | 24 | |
|
Deferred Derivative Gains - Current [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - current | 5 | 14 |
|
Unrecognized Pension and Other Postretirement Costs [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 4,846 | 2,730 |
|
Future Income Tax [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 2,273 | 2,145 |
|
Environmental Remediation Costs [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 925 | 938 |
|
Deferred Storm Costs [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 319 | 441 |
|
Revenue Taxes [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 219 | 207 |
|
Surcharge for New York State Assessment [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 99 | 78 |
|
Pension and Other Postretirement Benefits Deferrals [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 66 | 237 |
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 46 | 50 |
|
Net Electric Deferrals [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 63 | 83 |
|
Unamortized Loss on Reacquired Debt [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 57 | 65 |
|
O & R Property Tax Reconciliation [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 36 | 22 |
|
O&R Transition Bond Charges [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 27 | 33 |
|
Preferred Stock Redemption [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 27 | 28 |
|
Deferred Derivative Losses - Noncurrent [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 25 | 8 |
|
Recoverable Energy Costs - Current [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 19 | 29 |
| Regulatory assets - current | 41 | 4 |
|
Workers' Compensation [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 8 | 12 |
|
Other [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 147 | 145 |
|
Deferred Derivative Losses - Current [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - current | 97 | 25 |
|
Future Income Tax - Current [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - current | 10 | |
|
Property Tax Reconciliation [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 295 | 322 |
|
CECONY [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 8,481 | 6,639 |
| Regulatory assets - current | 132 | 26 |
| Total Regulatory Assets | 8,613 | 6,665 |
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 1,837 | 1,598 |
| Regulatory liabilities - current | 142 | 107 |
| Total Regulatory Liabilities | 1,979 | 1,705 |
|
CECONY [Member] | Allowance for Cost of Removal Less Salvage [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 499 | 453 |
|
CECONY [Member] | 2014 Rate Plan Rate Base Revenue Deferrals [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 155 | |
|
CECONY [Member] | Net Unbilled Revenue Deferrals [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 138 | 133 |
|
CECONY [Member] | Prudence Proceeding [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 105 | 40 |
|
CECONY [Member] | Property Tax Refunds [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 87 | 130 |
|
CECONY [Member] | Long-Term Interest Rate Reconciliation [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 78 | 105 |
|
CECONY [Member] | Carrying Charges on Repair Allowance and Bonus Depreciation [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 57 | 87 |
|
CECONY [Member] | New York State Income Tax Rate Change [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 59 | |
|
CECONY [Member] | World Trade Center Settlement Proceeds [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 41 | 62 |
|
CECONY [Member] | Carrying Charges on Transmission and Distribution Net Plant [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 20 | 20 |
|
CECONY [Member] | Electric Excess Earnings [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 18 | 18 |
|
CECONY [Member] | Other [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 248 | 178 |
|
CECONY [Member] | Refundable Energy Costs - Current [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - current | 84 | 66 |
|
CECONY [Member] | Revenue Decoupling Mechanism [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - current | 30 | 30 |
|
CECONY [Member] | Future Income Tax [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - current | 24 | |
|
CECONY [Member] | Deferred Derivative Gains - Current [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - current | 4 | 11 |
|
CECONY [Member] | Unrecognized Pension and Other Postretirement Costs [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 4,609 | 2,610 |
|
CECONY [Member] | Future Income Tax [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 2,166 | 2,030 |
|
CECONY [Member] | Environmental Remediation Costs [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 820 | 830 |
|
CECONY [Member] | Deferred Storm Costs [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 224 | 334 |
|
CECONY [Member] | Revenue Taxes [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 208 | 196 |
|
CECONY [Member] | Surcharge for New York State Assessment [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 92 | 74 |
|
CECONY [Member] | Pension and Other Postretirement Benefits Deferrals [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 42 | 211 |
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | 37 | 50 |
|
CECONY [Member] | Net Electric Deferrals [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 63 | 83 |
|
CECONY [Member] | Unamortized Loss on Reacquired Debt [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 55 | 62 |
|
CECONY [Member] | Preferred Stock Redemption [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 27 | 28 |
|
CECONY [Member] | Deferred Derivative Losses - Noncurrent [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 23 | 7 |
|
CECONY [Member] | Recoverable Energy Costs - Current [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 17 | 28 |
| Regulatory assets - current | 40 | 4 |
|
CECONY [Member] | Workers' Compensation [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 8 | 12 |
|
CECONY [Member] | Other [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - noncurrent | 127 | 134 |
|
CECONY [Member] | Deferred Derivative Losses - Current [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - current | 92 | 22 |
|
CECONY [Member] | Property Tax Reconciliation [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - noncurrent | $ 295 | $ 322 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are expected to be recovered through revenue sources within one year or the normal operating cycle, if longer. Such costs are capitalized if they meet both of the following criteria: a. It is probable that future revenue in an amount at least equal to the capitalized cost will result from inclusion of that cost in allowable costs for rate-making purposes. b. Based on available evidence, the future revenue will be provided to permit recovery of the previously incurred cost rather than to provide for expected levels of similar future costs. If the revenue will be provided through an automatic rate-adjustment clause, this criterion requires that the regulator's intent clearly be to permit recovery of the previously incurred cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount for the individual regulatory liability as itemized in a table of regulatory liabilities as of the end of the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount for the individual regulatory current liability as itemized in a table of regulatory current liabilities as of the end of the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount for the individual regulatory noncurrent liability as itemized in a table of regulatory noncurrent liabilities as of the end of the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Capitalization - Additional Information (Detail) (USD $)
|
12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
May 31, 2012
|
|||||
| Schedule of Capitalization [Line Items] | |||||||
| Common stock shares, outstanding | 21,976,200 | 21,976,200 | |||||
| Percentage limitation for income available for dividends | 100.00% | ||||||
| Rolling average calculation of income available for dividends, years | 2 years | ||||||
| Tax-exempt debt issued, value | $ 494,000,000 | ||||||
| Long-term debt, fair value | 13,998,000,000 | 12,082,000,000 | |||||
| Tax-exempt debt | 1,130,000,000 | 1,130,000,000 | |||||
| Long-term debt | 12,191,000,000 | 10,974,000,000 | |||||
| Debt instrument, covenant description | Con Edison's ratio of consolidated debt to consolidated capital to exceed 0.675 to 1 | ||||||
| Covenant principal balance amount limit | 100,000,000 | ||||||
|
Level 2 [Member]
|
|||||||
| Schedule of Capitalization [Line Items] | |||||||
| Long-term debt, fair value | 13,362,000,000 | ||||||
|
Level 3 [Member]
|
|||||||
| Schedule of Capitalization [Line Items] | |||||||
| Long-term debt, fair value | 636,000,000 | ||||||
|
Maximum [Member]
|
|||||||
| Schedule of Capitalization [Line Items] | |||||||
| Ratio of consolidated debt to consolidated capital for tax exempt financing | 0.675 | ||||||
|
Transition Bonds, Issued in 2004 [Member]
|
|||||||
| Schedule of Capitalization [Line Items] | |||||||
| Long-term debt | 18,000,000 | 22,000,000 | |||||
|
CECONY [Member]
|
|||||||
| Schedule of Capitalization [Line Items] | |||||||
| Outstanding shares of Cumulative Preferred Stock | 5 | ||||||
| Cumulative Preferred Stock, par value | $ 100 | ||||||
| Long-term debt, fair value | 12,846,000,000 | 10,797,000,000 | |||||
| Tax-exempt debt | 1,086,000,000 | [1] | 1,086,000,000 | [1] | |||
| Long-term debt | 11,214,000,000 | [1] | 9,841,000,000 | [1] | |||
|
CECONY [Member] | Level 2 [Member]
|
|||||||
| Schedule of Capitalization [Line Items] | |||||||
| Long-term debt, fair value | 12,210,000,000 | ||||||
|
CECONY [Member] | Level 3 [Member]
|
|||||||
| Schedule of Capitalization [Line Items] | |||||||
| Long-term debt, fair value | 636,000,000 | ||||||
| Tax-exempt debt | 636,000,000 | ||||||
|
CECONY [Member] | Maximum [Member]
|
|||||||
| Schedule of Capitalization [Line Items] | |||||||
| Covenant principal balance amount limit | 100,000,000 | ||||||
| Ratio of consolidated debt to consolidated capital for tax exempt financing | 0.65 | ||||||
|
CECONY [Member] | Minimum [Member]
|
|||||||
| Schedule of Capitalization [Line Items] | |||||||
| Covenant principal balance amount limit | $ 150,000,000 | ||||||
|
|||||||
| X | ||||||||||
|
- Definition
Covenant principal balance amount limit No definition available.
|
| X | ||||||||||
|
- Definition
Cumulative Preferred Stock Outstanding No definition available.
|
| X | ||||||||||
|
- Definition
Cumulative Preferred Stock Par Value No definition available.
|
| X | ||||||||||
|
- Definition
Percentage limitation for income available for dividends No definition available.
|
| X | ||||||||||
|
- Definition
Ratio of indebtedness to net capital2. No definition available.
|
| X | ||||||||||
|
- Definition
Rolling average calculation of income available for dividends No definition available.
|
| X | ||||||||||
|
- Definition
Tax-Exempt Debt, Total No definition available.
|
| X | ||||||||||
|
- Definition
tax exempt debt issued, value No definition available.
|
| X | ||||||||||
|
- Definition
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios (for example, working capital ratio and debt service coverage ratio), and adherence to certain clauses which generally require or restrict certain actions (for example, entering into a debt arrangement with equal or greater seniority, and selling or discontinuing a certain business segment or material subsidiary) to be in compliance with the covenant clauses of the debt agreement. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. No definition available.
|
| X | ||||||||||
|
- Details
|
|
Capitalization - Schedule of Long-Term Debt Maturities (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
|---|---|
| Debt Instrument [Line Items] | |
| 2015 | $ 560 |
| 2016 | 731 |
| 2017 | 6 |
| 2018 | 1,260 |
| 2019 | 540 |
|
CECONY [Member]
|
|
| Debt Instrument [Line Items] | |
| 2015 | 350 |
| 2016 | 650 |
| 2018 | 1,200 |
| 2019 | $ 475 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Capitalization - Carrying Amounts and Fair Values of Long-Term Debt (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
||||
|---|---|---|---|---|---|---|
| Debt Instrument [Line Items] | ||||||
| Carrying Amount | $ 12,191 | $ 10,974 | ||||
| Fair Value | 13,998 | 12,082 | ||||
|
CECONY [Member]
|
||||||
| Debt Instrument [Line Items] | ||||||
| Carrying Amount | 11,214 | [1] | 9,841 | [1] | ||
| Fair Value | $ 12,846 | $ 10,797 | ||||
|
||||||
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. No definition available.
|
|
Short-Term Borrowing - Additional Information (Detail) (USD $)
|
12 Months Ended | 12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2014
October 2016 [Member]
|
Oct. 31, 2011
Maximum [Member]
|
Dec. 31, 2014
Letters of Credit [Member]
October 2016 [Member]
|
Dec. 31, 2014
Letters of Credit [Member]
October 2017 [Member]
|
Dec. 31, 2014
CECONY [Member]
|
Dec. 31, 2013
CECONY [Member]
|
|
| Short-term Debt [Line Items] | ||||||||
| Credit facility expiry date | Oct. 31, 2017 | |||||||
| Maximum credit available | $ 2,250,000,000 | $ 2,100,000,000 | ||||||
| Current amount available | 1,000,000,000 | |||||||
| Maximum borrowing capacity | 1,200,000,000 | |||||||
| Commercial paper, outstanding | 800,000,000 | 1,451,000,000 | 450,000,000 | 1,210,000,000 | ||||
| Weighted average interest rate | 0.40% | 0.20% | 0.40% | 0.20% | ||||
| Letters of credit outstanding under the Credit Agreement | 11,000,000 | 26,000,000 | 11,000,000 | 11,000,000 | ||||
| Loans outstanding under credit agreement | $ 0 | $ 0 | ||||||
| Line of credit facility, covenant terms | Ratio of consolidated debt to consolidated total capital of 0.65 to 1 (at December 31, 2014 this ratio was 0.51 to 1 for Con Edison and CECONY); having liens on its assets in an aggregate amount exceeding five percent of its consolidated total capital, subject to certain exceptions; and the failure, following any applicable notice period, to meet certain other customary covenants. | |||||||
| Ratio of consolidated debt to consolidated total capital | 0.51 | 0.65 | 0.51 | |||||
| Minimum percentage of liens on assets | 5.00% | |||||||
| X | ||||||||||
|
- Definition
Maximum credit available. No definition available.
|
| X | ||||||||||
|
- Definition
Percentage Of Liens Of Companies Consolidated Asset No definition available.
|
| X | ||||||||||
|
- Definition
Weighted Average Interest Rate Of Commercial Paper No definition available.
|
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. No definition available.
|
| X | ||||||||||
|
- Definition
Description of the conditions for borrowing under the credit facility including the nature of any restrictions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Date the credit facility terminates, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of portion of long-term loans payable due within one year or the operating cycle if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Indebtedness divided by net capital. No definition available.
|
| X | ||||||||||
|
- Details
|
|
Pension Benefits - Total Periodic Benefit Costs (Detail) (Pension Benefits [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Defined Benefit Plan Disclosure [Line Items] | |||
| Service cost - including administrative expenses | $ 227 | $ 267 | $ 237 |
| Interest cost on projected benefit obligation | 572 | 537 | 547 |
| Expected return on plan assets | (832) | (750) | (705) |
| Recognition of net actuarial loss | 618 | 832 | 709 |
| Recognition of prior service costs | 4 | 5 | 8 |
| NET PERIODIC BENEFIT COST | 589 | 891 | 796 |
| Amortization of regulatory asset | 2 | 2 | 2 |
| TOTAL PERIODIC BENEFIT COST | 591 | 893 | 798 |
| Cost capitalized | (225) | (348) | (277) |
| Reconciliation to rate level | 118 | (84) | (8) |
| Cost charged to operating expenses | 484 | 461 | 513 |
|
CECONY [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Service cost - including administrative expenses | 211 | 249 | 220 |
| Interest cost on projected benefit obligation | 536 | 503 | 513 |
| Expected return on plan assets | (789) | (713) | (670) |
| Recognition of net actuarial loss | 586 | 788 | 670 |
| Recognition of prior service costs | 2 | 4 | 6 |
| NET PERIODIC BENEFIT COST | 546 | 831 | 739 |
| Amortization of regulatory asset | 2 | 2 | 2 |
| TOTAL PERIODIC BENEFIT COST | 548 | 833 | 741 |
| Cost capitalized | (212) | (327) | (260) |
| Reconciliation to rate level | 108 | (87) | (12) |
| Cost charged to operating expenses | $ 444 | $ 419 | $ 469 |
| X | ||||||||||
|
- Definition
Defined Benefit Plan Cost Capitalized No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan Cost Charged To Operating Expenses No definition available.
|
| X | ||||||||||
|
- Definition
Effect of Reconciliation to Rate Level No definition available.
|
| X | ||||||||||
|
- Definition
Total Periodic Benefit Cost After Amortization of Regulatory Asset No definition available.
|
| X | ||||||||||
|
- Definition
The expense charged against earnings during the period to allocate the capitalized costs of regulatory assets over the periods expected to benefit from such costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of gains or losses recognized in net periodic benefit cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Pension Benefits - Total Periodic Benefit Costs (Parenthetical) (Detail) (Pension Benefits [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 31, 2014
|
|
|
Pension Benefits [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | |
| Increase in CECONY's pension obligation | $ 45 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in the amount due to fund retirement benefits to employees, retired and disabled former employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Pension Benefits - Schedule of Funded Status (Detail) (Pension Benefits [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| CHANGE IN PROJECTED BENEFIT OBLIGATION | |||
| Benefit obligation at beginning of year | $ 12,197 | $ 13,406 | $ 11,825 |
| Service cost - excluding administrative expenses | 221 | 259 | 224 |
| Interest cost on projected benefit obligation | 572 | 537 | 547 |
| Net actuarial (gain)/loss | 2,641 | (1,469) | 1,323 |
| Plan amendments | 6 | ||
| Benefits paid | (556) | (536) | (513) |
| BENEFIT OBLIGATION AT END OF YEAR | 15,081 | 12,197 | 13,406 |
| CHANGE IN PLAN ASSETS | |||
| Fair value of plan assets at beginning of year | 10,755 | 9,135 | 7,800 |
| Actual return on plan assets | 752 | 1,310 | 1,094 |
| Employer contributions | 578 | 879 | 785 |
| Benefits paid | (556) | (536) | (513) |
| Administrative expenses | (34) | (33) | (31) |
| FAIR VALUE OF PLAN ASSETS AT END OF YEAR | 11,495 | 10,755 | 9,135 |
| FUNDED STATUS | (3,586) | (1,442) | (4,271) |
| Unrecognized net loss | 4,888 | 2,759 | 5,594 |
| Unrecognized prior service costs | 20 | 17 | 23 |
| Accumulated benefit obligation | 13,454 | 11,004 | 11,911 |
|
CECONY [Member]
|
|||
| CHANGE IN PROJECTED BENEFIT OBLIGATION | |||
| Benefit obligation at beginning of year | 11,429 | 12,572 | 11,072 |
| Service cost - excluding administrative expenses | 206 | 241 | 209 |
| Interest cost on projected benefit obligation | 536 | 503 | 513 |
| Net actuarial (gain)/loss | 2,484 | (1,388) | 1,255 |
| Benefits paid | (518) | (499) | (477) |
| BENEFIT OBLIGATION AT END OF YEAR | 14,137 | 11,429 | 12,572 |
| CHANGE IN PLAN ASSETS | |||
| Fair value of plan assets at beginning of year | 10,197 | 8,668 | 7,406 |
| Actual return on plan assets | 715 | 1,241 | 1,040 |
| Employer contributions | 535 | 819 | 729 |
| Benefits paid | (518) | (499) | (477) |
| Administrative expenses | (32) | (32) | (30) |
| FAIR VALUE OF PLAN ASSETS AT END OF YEAR | 10,897 | 10,197 | 8,668 |
| FUNDED STATUS | (3,240) | (1,232) | (3,904) |
| Unrecognized net loss | 4,616 | 2,617 | 5,297 |
| Unrecognized prior service costs | 4 | 6 | 10 |
| Accumulated benefit obligation | $ 12,553 | $ 10,268 | $ 11,116 |
| X | ||||||||||
|
- Definition
Defined Benefit Plan, Administrative expenses No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan Service Cost Excluding Administrative Expenses No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan, Unrecognized net loss No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan, Unrecognized prior service costs No definition available.
|
| X | ||||||||||
|
- Definition
For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The increase in the fair value of plan assets from contributions made by the employer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of increase or decrease due to a change in the terms of an existing plan or the initiation of a new plan. A plan amendment may increase or decrease benefits, including those attributed to years of service already rendered. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Pension Benefits - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2014
Other Nonqualified Supplemental Defined Benefit Pension [Member]
|
Dec. 31, 2013
Other Nonqualified Supplemental Defined Benefit Pension [Member]
|
Dec. 31, 2014
CECONY [Member]
|
Dec. 31, 2013
CECONY [Member]
|
Dec. 31, 2014
CECONY [Member]
Other Nonqualified Supplemental Defined Benefit Pension [Member]
|
Dec. 31, 2013
CECONY [Member]
Other Nonqualified Supplemental Defined Benefit Pension [Member]
|
Dec. 31, 2014
Pension Benefits [Member]
|
Dec. 31, 2013
Pension Benefits [Member]
|
Dec. 31, 2012
Pension Benefits [Member]
|
Dec. 31, 2014
Pension Benefits [Member]
CECONY [Member]
|
Dec. 31, 2013
Pension Benefits [Member]
CECONY [Member]
|
Dec. 31, 2012
Pension Benefits [Member]
CECONY [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | ||||||||||||||
| Pension liability | $ 2,144 | $ 2,008 | ||||||||||||
| Increase to regulatory assets | 2,101 | 1,992 | ||||||||||||
| Charge to OCI | 17 | 3 | ||||||||||||
| Net loss estimated to be amortized | 783 | 740 | ||||||||||||
| Prior service cost estimated to be amortized | 4 | 2 | ||||||||||||
| Investments value | 225 | 201 | 208 | 183 | ||||||||||
| Accumulated benefit obligation | 289 | 234 | 250 | 199 | 13,454 | 11,004 | 11,911 | 12,553 | 10,268 | 11,116 | ||||
| Assumptions used in calculating net periodic benefit cost | To determine the assumed discount rate, the Companies use a model that produces a yield curve based on yields on selected highly rated (Aa or higher by either Moody’s Investors Service (Moody’s) or Standard & Poor’s) corporate bonds. Bonds with insufficient liquidity, bonds with questionable pricing information and bonds that are not representative of the overall market are excluded from consideration. For example, the bonds used in the model cannot be callable, they must have a price between 50 percent and 200 percent of the original price, the yield must lie between 1 percent and 20 percent, and the amount of the bond issue outstanding must be in excess of $50 million. The spot rates defined by the yield curve and the plan’s projected benefit payments are used to develop a weighted average discount rate. | |||||||||||||
| Estimated future employer contributions | 756 | 703 | ||||||||||||
| Increase in pension benefit obligation | $ 800 | |||||||||||||
| X | ||||||||||
|
- Definition
Defined Benefit Plan, Investments Value No definition available.
|
| X | ||||||||||
|
- Definition
This represents the entire liability recognized in the balance sheet that is associated with the defined benefit pension plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Disclosure of how the assumed discount rate was determined and the specific source data used to support the discount rate. No definition available.
|
| X | ||||||||||
|
- Definition
Net increase or decrease in the plan benefit obligation during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount included in accumulated other comprehensive income (AOCI) related to gain (loss) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position. No definition available.
|
| X | ||||||||||
|
- Definition
Amount included in accumulated other comprehensive income (AOCI) related to prior service cost (credit) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in the value of assets that are created when regulatory agencies permits public utilities to defer costs (revenues) to the balance sheet. This element is a the increase (decrease) of regulatory assets and liabilities combined. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after tax of cost (credit) of benefit changes attributable to plan participants' prior service resulting from a plan amendment or plan initiation that has not been recognized in net periodic benefit cost (credit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Pension Benefits - Schedule of Assumptions (Detail) (Pension Benefits [Member])
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount rate, benefit obligations | 3.90% | 4.80% | 4.10% |
| Discount rate, net periodic benefit cost | 4.80% | 4.10% | 4.70% |
| Expected return on plan assets | 8.00% | 8.00% | 8.00% |
|
CECONY [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Rate of compensation increase | 4.25% | 4.35% | 4.35% |
| Rate of compensation increase | 4.35% | 4.35% | 4.35% |
|
O&R [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Rate of compensation increase | 4.00% | 4.25% | 4.25% |
| Rate of compensation increase | 4.25% | 4.25% | 4.25% |
| X | ||||||||||
|
- Definition
The interest rate used to adjust for the time value of money for the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Expected rate of compensation increases (for pay-related plans). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The interest rate used to adjust for the time value of money. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Expected rate of compensation increases (for pay-related plans). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Pension Benefits - Schedule of Expected Benefit Payments (Detail) (Pension Benefits [Member], USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
|---|---|
| Defined Benefit Plan Disclosure [Line Items] | |
| 2015 | $ 592 |
| 2016 | 615 |
| 2017 | 636 |
| 2018 | 658 |
| 2019 | 678 |
| 2020-2024 | 3,642 |
|
CECONY [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | |
| 2015 | 552 |
| 2016 | 574 |
| 2017 | 594 |
| 2018 | 613 |
| 2019 | 632 |
| 2020-2024 | $ 3,388 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of benefits from a defined benefit plan expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits from a defined benefit plan expected to be paid in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits from a defined benefit plan expected to be paid in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits from a defined benefit plan expected to be paid in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits from a defined benefit plan expected to be paid in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits from a defined benefit plan expected to be paid in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Pension Benefits - Schedule of Plan Assets Allocations (Detail) (Pension Benefits [Member])
|
12 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2015
Scenario, Forecast [Member]
|
Dec. 31, 2014
Equity [Member]
|
Dec. 31, 2013
Equity [Member]
|
Dec. 31, 2012
Equity [Member]
|
Dec. 31, 2014
Debt Securities [Member]
|
Dec. 31, 2013
Debt Securities [Member]
|
Dec. 31, 2012
Debt Securities [Member]
|
Dec. 31, 2014
Real Estate [Member]
|
Dec. 31, 2013
Real Estate [Member]
|
Dec. 31, 2012
Real Estate [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | |||||||||||||
| Equity Securities, Target Allocation, Minimum | 55.00% | ||||||||||||
| Equity Securities, Target Allocation, Maximum | 65.00% | ||||||||||||
| Debt Securities, Target Allocation, Minimum | 27.00% | ||||||||||||
| Debt Securities, Target Allocation, Maximum | 33.00% | ||||||||||||
| Real Estate, Target Allocation, Minimum | 8.00% | ||||||||||||
| Real Estate, Target Allocation, Maximum | 12.00% | ||||||||||||
| Plan Assets, Total | 100.00% | 100.00% | 100.00% | 100.00% | |||||||||
| Plan Assets | 58.00% | 60.00% | 60.00% | 32.00% | 30.00% | 31.00% | 10.00% | 10.00% | 9.00% | ||||
| X | ||||||||||
|
- Definition
Defined Benefit Plan Target Allocation Percentage 1 No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan Target Allocation Percentage Of Assets Debt Securities Range Maximum1 No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan Target Allocation Percentage Of Assets Debt Securities Range Minimum 1 No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan Target Allocation Percentage Of Assets Equity Securities Range Maximum 1 No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan Target Allocation Percentage Of Assets Equity Securities Range Minimum 1 No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Target allocation maximum percentage of investments of this type to total plan assets presented on a weighted average basis. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Target allocation minimum percentage of investments of this type to total plan assets presented on a weighted average basis. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Pension Benefits - Schedule of Fair Value of Plan Assets (Detail) (Pension Benefits [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | $ 12,415 | $ 11,759 | ||
| Funds for retiree health benefits | (358) | (372) | ||
| Investments (excluding funds for retiree health benefits) | 12,057 | 11,387 | ||
| Pending activities | (562) | (632) | ||
| Total fair value of plan net assets | 11,495 | 10,755 | 9,135 | 7,800 |
|
U.S. Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 3,168 | 3,057 | ||
|
International Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 3,202 | 3,174 | ||
|
Private Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 114 | 67 | ||
| Total fair value of plan net assets | 114 | 67 | 20 | |
|
U.S. Government Issued Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 2,113 | 1,855 | ||
|
Corporate Bonds Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 1,351 | 1,151 | ||
|
Structured Assets Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 4 | 4 | ||
|
Other Fixed Income Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 208 | 150 | ||
|
Real Estate [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 1,137 | 1,062 | ||
| Total fair value of plan net assets | 1,137 | 1,062 | 833 | |
|
Cash and Cash Equivalents [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 665 | 685 | ||
|
Futures [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 229 | 348 | ||
|
Hedge Funds [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 224 | 206 | ||
| Total fair value of plan net assets | 224 | 206 | ||
|
Level 1 [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 6,389 | 5,835 | ||
| Funds for retiree health benefits | (184) | (185) | ||
| Investments (excluding funds for retiree health benefits) | 6,205 | 5,650 | ||
|
Level 1 [Member] | U.S. Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 3,168 | 3,057 | ||
|
Level 1 [Member] | International Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 2,841 | 2,303 | ||
|
Level 1 [Member] | Cash and Cash Equivalents [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 188 | 127 | ||
|
Level 1 [Member] | Futures [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 192 | 348 | ||
|
Level 2 [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 4,551 | 4,589 | ||
| Funds for retiree health benefits | (131) | (145) | ||
| Investments (excluding funds for retiree health benefits) | 4,420 | 4,444 | ||
|
Level 2 [Member] | International Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 361 | 871 | ||
|
Level 2 [Member] | U.S. Government Issued Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 2,113 | 1,855 | ||
|
Level 2 [Member] | Corporate Bonds Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 1,351 | 1,151 | ||
|
Level 2 [Member] | Structured Assets Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 4 | 4 | ||
|
Level 2 [Member] | Other Fixed Income Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 208 | 150 | ||
|
Level 2 [Member] | Cash and Cash Equivalents [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 477 | 558 | ||
|
Level 2 [Member] | Futures [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 37 | |||
|
Level 3 [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 1,475 | 1,335 | ||
| Funds for retiree health benefits | (43) | (42) | ||
| Investments (excluding funds for retiree health benefits) | 1,432 | 1,293 | ||
|
Level 3 [Member] | Private Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 114 | 67 | ||
|
Level 3 [Member] | Real Estate [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 1,137 | 1,062 | ||
|
Level 3 [Member] | Hedge Funds [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | $ 224 | $ 206 | ||
| X | ||||||||||
|
- Definition
Defined Benefit Plan Fair Value Of Plan Assets Investments No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan, Pending activities No definition available.
|
| X | ||||||||||
|
- Definition
Investments, excluding funds for retiree health benefits, total No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Liability for extension of health coverage in instances where coverage under the plan would otherwise end. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Pension Benefits - Reconciliation of Fair Value Balances for Net Assets (Detail) (Pension Benefits [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2014
Real Estate [Member]
|
Dec. 31, 2013
Real Estate [Member]
|
Dec. 31, 2014
Private Equity [Member]
|
Dec. 31, 2013
Private Equity [Member]
|
Dec. 31, 2014
Hedge Funds [Member]
|
Dec. 31, 2013
Hedge Funds [Member]
|
Dec. 31, 2014
Investments [Member]
|
Dec. 31, 2013
Investments [Member]
|
Dec. 31, 2014
Funds for Retiree Health Benefits [Member]
|
Dec. 31, 2013
Funds for Retiree Health Benefits [Member]
|
Dec. 31, 2014
Investments (Excluding Funds for Retiree Health Benefits) [Member]
|
Dec. 31, 2013
Investments (Excluding Funds for Retiree Health Benefits) [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | ||||||||||||||||
| Fair value of plan assets at beginning of year | $ 11,495 | $ 10,755 | $ 9,135 | $ 7,800 | $ 1,062 | $ 833 | $ 67 | $ 20 | $ 206 | $ 1,335 | $ 853 | $ (42) | $ (31) | $ 1,293 | $ 822 | |
| Assets Still Held at Reporting Date - Unrealized Gains/(Losses) | 86 | 114 | 12 | 5 | 11 | 6 | 109 | 125 | (1) | (3) | 108 | 122 | ||||
| Assets Sold During the Year - Realized Gains/(Losses) | 20 | 1 | 20 | 1 | 20 | 1 | ||||||||||
| Purchases Sales and Settlements | (31) | 114 | 35 | 42 | 7 | 200 | 11 | 356 | (8) | 11 | 348 | |||||
| Transfer In/(Out) of Level 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| FAIR VALUE OF PLAN ASSETS AT END OF YEAR | $ 11,495 | $ 10,755 | $ 9,135 | $ 7,800 | $ 1,137 | $ 1,062 | $ 114 | $ 67 | $ 224 | $ 206 | $ 1,475 | $ 1,335 | $ (43) | $ (42) | $ 1,432 | $ 1,293 |
| X | ||||||||||
|
- Definition
Actual return on plan assets, separately identifying the amount related to assets sold during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Actual return on plan assets, separately identifying the amount related to assets still held at the reporting date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of increase (decrease) in plan assets from purchases, sales and settlement of plan obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Transfers in and out of Level 3. For example, transfers due to changes in the observability of significant inputs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Pension Benefits - Schedule of Employer Contribution to Defined Savings Plan (Detail) (Pension Benefits [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Defined Benefit Plan Disclosure [Line Items] | |||
| Employer contribution to the defined savings plan | $ 32 | $ 30 | $ 23 |
|
CECONY [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Employer contribution to the defined savings plan | $ 27 | $ 26 | $ 21 |
| X | ||||||||||
|
- Definition
Defined contribution employer contributions. No definition available.
|
| X | ||||||||||
|
- Details
|
|
Other Postretirement Benefits - Net Periodic Postretirement Benefit Costs (Detail) (Other Postretirement Benefits [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Defined Benefit Plan Disclosure [Line Items] | |||
| Service cost | $ 19 | $ 23 | $ 26 |
| Interest cost on accumulated other postretirement benefit obligation | 60 | 54 | 73 |
| Expected return on plan assets | (77) | (77) | (85) |
| Recognition of net actuarial loss | 57 | 65 | 98 |
| Recognition of prior service cost | (19) | (27) | (21) |
| Recognition of transition obligation | 2 | ||
| NET PERIODIC BENEFIT COST | 40 | 38 | 93 |
| Cost capitalized | (15) | (15) | (32) |
| Reconciliation to rate level | 10 | 58 | 20 |
| Cost charged to operating expenses | 35 | 81 | 81 |
|
CECONY [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Service cost | 15 | 18 | 21 |
| Interest cost on accumulated other postretirement benefit obligation | 52 | 46 | 63 |
| Expected return on plan assets | (68) | (68) | (75) |
| Recognition of net actuarial loss | 51 | 57 | 87 |
| Recognition of prior service cost | (15) | (23) | (18) |
| Recognition of transition obligation | 2 | ||
| NET PERIODIC BENEFIT COST | 35 | 30 | 80 |
| Cost capitalized | (14) | (12) | (28) |
| Reconciliation to rate level | 2 | 50 | 16 |
| Cost charged to operating expenses | $ 23 | $ 68 | $ 68 |
| X | ||||||||||
|
- Definition
Defined Benefit Plan Cost Capitalized No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan Cost Charged To Operating Expenses No definition available.
|
| X | ||||||||||
|
- Definition
Effect of Reconciliation to Rate Level No definition available.
|
| X | ||||||||||
|
- Definition
The amount of gains or losses recognized in net periodic benefit cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of the transition obligation or asset recognized in net periodic benefit cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Other Postretirement Benefits - Schedule of Funded Status (Detail) (Other Postretirement Benefits [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| CHANGE IN BENEFIT OBLIGATION | |||
| Benefit obligation at beginning of year | $ 1,395 | $ 1,454 | $ 1,756 |
| Service cost | 19 | 23 | 26 |
| Interest cost on accumulated postretirement benefit obligation | 60 | 54 | 73 |
| Amendments | (12) | (127) | |
| Net actuarial loss/(gain) | 47 | (42) | (175) |
| Benefits paid and administrative expenses | (134) | (136) | (146) |
| Participant contributions | 36 | 38 | 37 |
| Medicare prescription subsidy | 4 | 10 | |
| BENEFIT OBLIGATION AT END OF YEAR | 1,411 | 1,395 | 1,454 |
| CHANGE IN PLAN ASSETS | |||
| Fair value of plan assets at beginning of year | 1,113 | 1,047 | 947 |
| Actual return on plan assets | 59 | 153 | 124 |
| Employer contributions | 7 | 9 | 83 |
| EGWP payments | 12 | 8 | |
| Participant contributions | 36 | 38 | 37 |
| Benefits paid | (143) | (142) | (144) |
| FAIR VALUE OF PLAN ASSETS AT END OF YEAR | 1,084 | 1,113 | 1,047 |
| FUNDED STATUS | (327) | (282) | (407) |
| Unrecognized net loss | 78 | 70 | 251 |
| Unrecognized prior service costs | (71) | (78) | (105) |
|
CECONY [Member]
|
|||
| CHANGE IN BENEFIT OBLIGATION | |||
| Benefit obligation at beginning of year | 1,198 | 1,238 | 1,511 |
| Service cost | 15 | 18 | 21 |
| Interest cost on accumulated postretirement benefit obligation | 52 | 46 | 63 |
| Amendments | (89) | ||
| Net actuarial loss/(gain) | 28 | (20) | (178) |
| Benefits paid and administrative expenses | (125) | (126) | (134) |
| Participant contributions | 35 | 38 | 36 |
| Medicare prescription subsidy | 4 | 8 | |
| BENEFIT OBLIGATION AT END OF YEAR | 1,203 | 1,198 | 1,238 |
| CHANGE IN PLAN ASSETS | |||
| Fair value of plan assets at beginning of year | 977 | 922 | 840 |
| Actual return on plan assets | 54 | 134 | 109 |
| Employer contributions | 7 | 9 | 71 |
| EGWP payments | 11 | 7 | |
| Participant contributions | 35 | 38 | 36 |
| Benefits paid | (134) | (133) | (134) |
| FAIR VALUE OF PLAN ASSETS AT END OF YEAR | 950 | 977 | 922 |
| FUNDED STATUS | (253) | (221) | (316) |
| Unrecognized net loss | 45 | 54 | 197 |
| Unrecognized prior service costs | $ (46) | $ (61) | $ (84) |
| X | ||||||||||
|
- Definition
Defined Benefit Plan, benefits paid and administrative expenses No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan Employer Group Waiver Plan Payments No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan, Unrecognized net loss No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan, Unrecognized prior service costs No definition available.
|
| X | ||||||||||
|
- Definition
Projected Defined Benefit Plan Actuarial Net Gains Losses No definition available.
|
| X | ||||||||||
|
- Definition
The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The increase in the fair value of plan assets from contributions made by the employer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of contributions made by plan participants. This item represents a periodic increase to the plan obligation and an increase to plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of the period's gross receipts received from the prescription drug subsidy, which is to be used in the roll forward of the accumulated postretirement benefit obligation of an applicable postretirement benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of increase or decrease due to a change in the terms of an existing plan or the initiation of a new plan. A plan amendment may increase or decrease benefits, including those attributed to years of service already rendered. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Other Postretirement Benefits - Additional Information (Detail) (Other Postretirement Benefits [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2012
|
|
| Defined Benefit Plan Disclosure [Line Items] | ||
| Increase (decrease) in postretirement benefit obligations | $ 102 | |
| Reduction to postretirement health benefit obligation recorded as actuarial gain | 306 | |
| Increase in liability for other postretirement benefits | 45 | |
| Increase to regulatory assets | 14 | |
| Charge to OCI | 3 | |
| Net losses unrecognized to be amortized | 33 | |
| Prior service cost unrecognized to be amortized | (20) | |
| Health care cost trend rate for net periodic benefit cost, current | 5.50% | |
| Health care cost trend rate for net periodic benefit cost | 4.50% | |
| Year for final trend rate for net periodic benefit cost | 2018 | |
| Health care cost trend rate for benefit obligations, current | 5.25% | |
| Health care cost trend rate for benefit obligations | 4.50% | |
| Year for final trend rate for benefit obligations | 2018 | |
| Expected contributions | 6 | |
|
Maximum [Member]
|
||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Increase (decrease) in postretirement benefit obligations | 10 | |
|
CECONY [Member]
|
||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Increase (decrease) in postretirement benefit obligations | 25 | |
| Increase in liability for other postretirement benefits | 32 | |
| Increase to regulatory assets | 6 | |
| Charge to OCI | 2 | |
| Net losses unrecognized to be amortized | 29 | |
| Prior service cost unrecognized to be amortized | (14) | |
| Expected contributions | $ 6 | |
| X | ||||||||||
|
- Definition
Defined Benefit Plan, Health Care Cost Trend Rate, current No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan, Health Care Cost Trend Rate, current, benefit obligations No definition available.
|
| X | ||||||||||
|
- Definition
Defined benefit plan, ultimate health care cost trend rate benefit obligations. No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan, Year That Rate Reaches Ultimate Trend Rate, benefit obligations No definition available.
|
| X | ||||||||||
|
- Definition
Net increase or decrease in the plan benefit obligation during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount included in accumulated other comprehensive income (AOCI) related to gain (loss) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position. No definition available.
|
| X | ||||||||||
|
- Definition
Amount included in accumulated other comprehensive income (AOCI) related to prior service cost (credit) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The ultimate trend rate for health care costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Year the ultimate health care cost trend rate is expected to be reached, in CCYY format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in the amount due to fund non-pension benefits provided to former, retired, and disabled employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in the value of assets that are created when regulatory agencies permits public utilities to defer costs (revenues) to the balance sheet. This element is a the increase (decrease) of regulatory assets and liabilities combined. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after tax of cost (credit) of benefit changes attributable to plan participants' prior service resulting from a plan amendment or plan initiation that has not been recognized in net periodic benefit cost (credit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of the reduction in the accumulated postretirement benefit obligation for the government subsidy related to prescription drug benefits attributed to past service. Disclosure relates to the first period in which an employer includes the effects of the subsidy in measuring the accumulated postretirement benefit obligation and net periodic postretirement benefit cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Other Postretirement Benefits - Schedule of Actuarial Assumptions (Detail) (Other Postretirement Benefits [Member])
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Defined Benefit Plan Disclosure [Line Items] | |||
| Expected return on plan assets | 7.75% | 7.75% | 8.50% |
|
CECONY [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount rate, benefit obligations | 3.75% | 4.50% | 3.75% |
| Discount rate, net periodic benefit cost | 4.50% | 3.75% | 4.55% |
|
O&R [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount rate, benefit obligations | 3.85% | 4.75% | 4.05% |
| Discount rate, net periodic benefit cost | 4.75% | 4.05% | 4.55% |
| X | ||||||||||
|
- Definition
The interest rate used to adjust for the time value of money for the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Expected rate of compensation increases (for pay-related plans). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Other Postretirement Benefits - Schedule of Change of Assumed Health Care Cost Trend Rate (Detail) (Scenario, Forecast [Member], Other Postretirement Benefits [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 31, 2014
|
|
| Defined Benefit Plan Disclosure [Line Items] | |
| Effect on accumulated other postretirement benefit obligation, Increase | $ (21) |
| Effect on service cost and interest cost components for 2014, Increase | (2) |
| Effect on accumulated other postretirement benefit obligation, Decrease | 40 |
| Effect on service cost and interest cost components for 2014, Decrease | 1 |
|
CECONY [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | |
| Effect on accumulated other postretirement benefit obligation, Increase | (43) |
| Effect on service cost and interest cost components for 2014, Increase | (4) |
| Effect on accumulated other postretirement benefit obligation, Decrease | 57 |
| Effect on service cost and interest cost components for 2014, Decrease | $ 3 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The effect of a one-percentage-point increase in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The effect of a one-percentage-point increase in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Other Postretirement Benefits - Schedule of Expected Benefit Payments (Detail) (Other Postretirement Benefits [Member], USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
|---|---|
| Defined Benefit Plan Disclosure [Line Items] | |
| 2015 - Benefit Payments | $ 99 |
| 2016 - Benefit Payments | 95 |
| 2017 - Benefit Payments | 94 |
| 2018 - Benefit Payments | 92 |
| 2019 - Benefit Payments | 89 |
| 2020-2024 - Benefit Payments | 419 |
|
CECONY [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | |
| 2015 - Benefit Payments | 89 |
| 2016 - Benefit Payments | 85 |
| 2017 - Benefit Payments | 84 |
| 2018 - Benefit Payments | 82 |
| 2019 - Benefit Payments | 79 |
| 2020-2024 - Benefit Payments | $ 364 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of benefits from a defined benefit plan expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits from a defined benefit plan expected to be paid in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits from a defined benefit plan expected to be paid in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits from a defined benefit plan expected to be paid in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits from a defined benefit plan expected to be paid in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits from a defined benefit plan expected to be paid in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Other Postretirement Benefits - Schedule of Plan Assets Allocations (Detail) (CECONY [Member], Other Postretirement Benefits [Member])
|
12 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2014
Equity [Member]
|
Dec. 31, 2013
Equity [Member]
|
Dec. 31, 2012
Equity [Member]
|
Dec. 31, 2014
Debt Securities [Member]
|
Dec. 31, 2013
Debt Securities [Member]
|
Dec. 31, 2012
Debt Securities [Member]
|
Dec. 31, 2014
Scenario, Forecast [Member]
|
Dec. 31, 2014
Scenario, Forecast [Member]
Equity [Member]
|
Dec. 31, 2014
Scenario, Forecast [Member]
Debt Securities [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | ||||||||||||
| Plan Assets | 100.00% | 100.00% | 100.00% | 59.00% | 61.00% | 62.00% | 41.00% | 39.00% | 38.00% | |||
| Target Allocation, Minimum | 57.00% | 26.00% | ||||||||||
| Target Allocation, Maximum | 73.00% | 44.00% | ||||||||||
| Target Allocation Range, Total | 100.00% | |||||||||||
| X | ||||||||||
|
- Definition
Defined Benefit Plan Target Allocation Percentage 1 No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Target allocation maximum percentage of investments of this type to total plan assets presented on a weighted average basis. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Target allocation minimum percentage of investments of this type to total plan assets presented on a weighted average basis. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Other Postretirement Benefits - Schedule of Fair Values of Plan Assets (Detail) (Other Postretirement Benefits [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | $ 725 | $ 743 | ||
| Funds for retiree health benefits | 358 | 372 | ||
| Investments (including funds for retiree health benefits) | 1,083 | 1,115 | ||
| Pending activities | 1 | (2) | ||
| Total fair value of plan net assets | 1,084 | 1,113 | 1,047 | 947 |
|
Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 428 | 450 | ||
|
Other Fixed Income Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 286 | 286 | ||
|
Cash and Cash Equivalents [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 11 | 7 | ||
|
Level 1 [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Funds for retiree health benefits | 184 | 185 | ||
| Investments (including funds for retiree health benefits) | 184 | 185 | ||
|
Level 2 [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 725 | 743 | ||
| Funds for retiree health benefits | 131 | 145 | ||
| Investments (including funds for retiree health benefits) | 856 | 888 | ||
|
Level 2 [Member] | Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 428 | 450 | ||
|
Level 2 [Member] | Other Fixed Income Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 286 | 286 | ||
|
Level 2 [Member] | Cash and Cash Equivalents [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 11 | 7 | ||
|
Level 3 [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Funds for retiree health benefits | 43 | 42 | ||
| Investments (including funds for retiree health benefits) | $ 43 | $ 42 | ||
| X | ||||||||||
|
- Definition
Defined Benefit Plan Fair Value Of Plan Assets Investments No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan, Pending activities No definition available.
|
| X | ||||||||||
|
- Definition
Investments including funds for retiree health benefits total. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Liability for extension of health coverage in instances where coverage under the plan would otherwise end. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Other Postretirement Benefits - Reconciliation of Fair Value Balances for Net Assets (Detail) (Other Postretirement Benefits [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2014
Level 3 [Member]
|
Dec. 31, 2013
Level 3 [Member]
|
Dec. 31, 2014
Level 3 [Member]
Funds for Retiree Health Benefits [Member]
|
Dec. 31, 2013
Level 3 [Member]
Funds for Retiree Health Benefits [Member]
|
Dec. 31, 2014
Level 3 [Member]
Investments (including funds for retiree health benefits) [Member]
|
Dec. 31, 2013
Level 3 [Member]
Investments (including funds for retiree health benefits) [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | ||||||||||
| Fair value of plan assets at beginning of year | $ 1,084 | $ 1,113 | $ 1,047 | $ 947 | $ 42 | $ 31 | $ 42 | $ 31 | ||
| Assets Still Held at Reporting Date - Unrealized Gains/(Losses) | 1 | 3 | 1 | 3 | ||||||
| Assets Sold During the Year - Realized Gains/(Losses) | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| Purchases Sales and Settlements | 8 | 8 | ||||||||
| Transfers (In/Out) of Level 3 | 0 | 0 | 0 | 0 | 0 | 0 | ||||
| FAIR VALUE OF PLAN ASSETS AT END OF YEAR | $ 1,084 | $ 1,113 | $ 1,047 | $ 947 | $ 43 | $ 42 | $ 43 | $ 42 | ||
| X | ||||||||||
|
- Definition
Actual return on plan assets, separately identifying the amount related to assets sold during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Actual return on plan assets, separately identifying the amount related to assets still held at the reporting date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of increase (decrease) in plan assets from purchases, sales and settlement of plan obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Represents a decrease to the amount of certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments) due to transfers out of the Level 3 category for purposes of measuring fair value. Such transfers may, for example, be due to changes in the observability of significant measurement inputs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Environmental Matters - Accrued Liabilities and Regulatory Assets (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Accrued Liabilities: | ||
| Accrued Liabilities | $ 764 | $ 749 |
| Regulatory assets | 9,304 | 7,230 |
|
Manufactured Gas Plant Sites [Member]
|
||
| Accrued Liabilities: | ||
| Accrued Liabilities | 684 | 665 |
|
Other Superfund Sites [Member]
|
||
| Accrued Liabilities: | ||
| Accrued Liabilities | 80 | 84 |
|
Superfund Sites [Member]
|
||
| Accrued Liabilities: | ||
| Accrued Liabilities | 764 | 749 |
| Regulatory assets | 925 | 938 |
|
CECONY [Member]
|
||
| Accrued Liabilities: | ||
| Accrued Liabilities | 666 | 644 |
| Regulatory assets | 8,613 | 6,665 |
|
CECONY [Member] | Manufactured Gas Plant Sites [Member]
|
||
| Accrued Liabilities: | ||
| Accrued Liabilities | 587 | 562 |
|
CECONY [Member] | Other Superfund Sites [Member]
|
||
| Accrued Liabilities: | ||
| Accrued Liabilities | 79 | 82 |
|
CECONY [Member] | Superfund Sites [Member]
|
||
| Accrued Liabilities: | ||
| Accrued Liabilities | 666 | 644 |
| Regulatory assets | $ 820 | $ 830 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable after twelve months or beyond the next operating cycle if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Environmental Matters - Additional Information (Detail) (USD $)
|
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|
| Site Contingency [Line Items] | ||
| Remediation cost estimate | $ 29,000,000 | $ 41,000,000 |
|
Asbestos Proceedings [Member]
|
||
| Site Contingency [Line Items] | ||
| Estimated undiscounted asbestos liability | 8,000,000 | |
|
Superfund Sites [Member]
|
||
| Site Contingency [Line Items] | ||
| Remediation cost estimate | 39,000,000 | |
|
Superfund Sites [Member] | Manufactured Gas Plant Sites [Member] | Maximum [Member]
|
||
| Site Contingency [Line Items] | ||
| Estimated aggregate undiscounted potential liability related environmental contaminants | 2,700,000,000 | |
|
CECONY [Member]
|
||
| Site Contingency [Line Items] | ||
| Remediation cost estimate | 20,000,000 | 35,000,000 |
|
CECONY [Member] | Asbestos Proceedings [Member]
|
||
| Site Contingency [Line Items] | ||
| Estimated undiscounted asbestos liability | 7,000,000 | |
| Estimated undiscounted asbestos liability in year | 15 years | |
|
CECONY [Member] | Superfund Sites [Member]
|
||
| Site Contingency [Line Items] | ||
| Remediation cost estimate | 35,000,000 | |
|
CECONY [Member] | Superfund Sites [Member] | Manufactured Gas Plant Sites [Member] | Maximum [Member]
|
||
| Site Contingency [Line Items] | ||
| Estimated aggregate undiscounted potential liability related environmental contaminants | $ 2,500,000,000 | |
| X | ||||||||||
|
- Definition
Estimated undiscounted asbestos Liability No definition available.
|
| X | ||||||||||
|
- Definition
Estimated Undiscounted Asbestos Liability In Year No definition available.
|
| X | ||||||||||
|
- Definition
Potential undiscounted liability for environmental loss contingencies gross. No definition available.
|
| X | ||||||||||
|
- Definition
The charge against earnings in the period for known or estimated future costs arising from requirements to perform environmental remediation activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Environmental Matters - Environmental Remediation Costs (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|
| Environmental Exit Cost [Line Items] | ||
| Remediation costs incurred | $ 29 | $ 41 |
| Insurance recoveries received | 7 | |
|
CECONY [Member]
|
||
| Environmental Exit Cost [Line Items] | ||
| Remediation costs incurred | 20 | 35 |
| Insurance recoveries received | $ 7 | |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The charge against earnings in the period for known or estimated future costs arising from requirements to perform environmental remediation activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Environmental Matters - Accrued Liability for Asbestos Suits and Workers' Compensation Proceedings (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Site Contingency [Line Items] | ||
| Regulatory assets | $ 9,304 | $ 7,230 |
|
Asbestos Suits [Member]
|
||
| Site Contingency [Line Items] | ||
| Accrued liability | 8 | 8 |
| Regulatory assets | 8 | 8 |
|
Workers Compensation Insurance [Member]
|
||
| Site Contingency [Line Items] | ||
| Accrued liability | 83 | 87 |
| Regulatory assets | 8 | 12 |
|
CECONY [Member]
|
||
| Site Contingency [Line Items] | ||
| Regulatory assets | 8,613 | 6,665 |
|
CECONY [Member] | Asbestos Suits [Member]
|
||
| Site Contingency [Line Items] | ||
| Accrued liability | 7 | 7 |
| Regulatory assets | 7 | 7 |
|
CECONY [Member] | Workers Compensation Insurance [Member]
|
||
| Site Contingency [Line Items] | ||
| Accrued liability | 78 | 82 |
| Regulatory assets | $ 8 | $ 12 |
| X | ||||||||||
|
- Definition
Total costs accrued as of the balance sheet date for environmental loss contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Other Material Contingencies - Additional Information (Detail) (USD $)
|
1 Months Ended | 12 Months Ended | |
|---|---|---|---|
|
Jul. 31, 2007
Person
|
Dec. 31, 2014
People
Lawsuits
|
Dec. 31, 2013
|
|
| Guarantor Obligations [Line Items] | |||
| Number of person died in steam ruptured | 1 | ||
| Number of suits pending against the company | 90 | ||
| Estimated accrued liability for suits | $ 50,000,000 | ||
| Insurance receivable for suits | 50,000,000 | ||
| Description of explosion and fire incident | On March 12, 2014, two multi-use five-story tall buildings located on Park Avenue between 116th and 117th Street in Manhattan were destroyed by an explosion and fire. CECONY had delivered gas to the buildings through service lines from a distribution main located below ground on Park Avenue. Eight people died and more than 48 people were injured. Additional buildings were also damaged. | ||
| Number of people died in explosion and fire incident | 8 | ||
| Number of people injured in explosion and fire incident | 48 | ||
| Guarantee obligations maximum exposure | 2,547,000,000 | 1,331,000,000 | |
| Ownership interest, percentage | 46.00% | ||
| Estimated project cost percentage | 175.00% | ||
|
Manhattan Explosion and Fire [Member]
|
|||
| Guarantor Obligations [Line Items] | |||
| Number of suits pending against the company | 30 | ||
|
Other [Member]
|
|||
| Guarantor Obligations [Line Items] | |||
| Guarantee obligations maximum exposure | 30,000,000 | ||
| Electric provider obligation to Public Utility Commission of Texas | 5,000,000 | ||
| Indemnity agreements amount | 25,000,000 | ||
|
Con Edison Development [Member]
|
|||
| Guarantor Obligations [Line Items] | |||
| Percentage of variable interests | 50.00% | ||
| Number of guaranteed payments | 2 | ||
|
Con Edison Development [Member] | Guarantee One [Member]
|
|||
| Guarantor Obligations [Line Items] | |||
| Guarantee obligations maximum exposure | 63,000,000 | ||
|
Con Edison Development [Member] | Guarantee Two [Member]
|
|||
| Guarantor Obligations [Line Items] | |||
| Guarantee obligations maximum exposure | 31,000,000 | ||
|
Construction and Operation of Solar Energy Facilities [Member]
|
|||
| Guarantor Obligations [Line Items] | |||
| Guarantees issued | $ 3,000,000 |
| X | ||||||||||
|
- Definition
Description of explosion and fire incident. No definition available.
|
| X | ||||||||||
|
- Definition
Electric obligation to state utility. No definition available.
|
| X | ||||||||||
|
- Definition
Maximum Amount Reimbursable Under Indemnity Agreement No definition available.
|
| X | ||||||||||
|
- Definition
Number Of Guaranteed Payments No definition available.
|
| X | ||||||||||
|
- Definition
Number Of Lawsuits No definition available.
|
| X | ||||||||||
|
- Definition
Number of people died in explosion and fire incident. No definition available.
|
| X | ||||||||||
|
- Definition
Number of people injured in explosion and fire incident. No definition available.
|
| X | ||||||||||
|
- Definition
Number Of Persons Died In Steam Ruptured No definition available.
|
| X | ||||||||||
|
- Definition
Parental Guarantees Issued No definition available.
|
| X | ||||||||||
|
- Definition
Percentage of estimated costs on projects. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy. No definition available.
|
| X | ||||||||||
|
- Definition
The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The parent entity's interest in net assets of the subsidiary, expressed as a percentage. No definition available.
|
| X | ||||||||||
|
- Definition
Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Other Material Contingencies - Total Guarantees (Detail) (USD $)
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | $ 2,547,000,000 | $ 1,331,000,000 |
|
NY Transco [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 1,361,000,000 | |
|
Energy Transactions [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 901,000,000 | |
|
Renewable Electric Production Projects [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 255,000,000 | |
|
Other [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 30,000,000 | |
|
0 - 3 years [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 2,413,000,000 | |
|
0 - 3 years [Member] | NY Transco [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 1,361,000,000 | |
|
0 - 3 years [Member] | Energy Transactions [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 774,000,000 | |
|
0 - 3 years [Member] | Renewable Electric Production Projects [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 248,000,000 | |
|
0 - 3 years [Member] | Other [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 30,000,000 | |
|
4 - 10 years [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 31,000,000 | |
|
4 - 10 years [Member] | Energy Transactions [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 31,000,000 | |
|
Greater than 10 years [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 103,000,000 | |
|
Greater than 10 years [Member] | Energy Transactions [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 96,000,000 | |
|
Greater than 10 years [Member] | Renewable Electric Production Projects [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | $ 7,000,000 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Electricity Purchase Agreements - Summary of Significant Terms of Electricity Purchase Agreements (Detail) (CECONY [Member])
|
12 Months Ended |
|---|---|
|
Dec. 31, 2014
MW
|
|
|
Brooklyn Navy Yard [Member]
|
|
| Long-term Contract for Purchase of Electric Power [Line Items] | |
| Plant Output (MW) | 322 |
| Contracted Output (MW) | 291 |
| Contract Start Date | November 1996 |
| Contract Term (Years) | 40 years |
|
Linden Cogeneration [Member]
|
|
| Long-term Contract for Purchase of Electric Power [Line Items] | |
| Plant Output (MW) | 1,035 |
| Contracted Output (MW) | 607 |
| Contract Start Date | May 1992 |
| Contract Term (Years) | 25 years |
|
Indeck Corinth [Member]
|
|
| Long-term Contract for Purchase of Electric Power [Line Items] | |
| Plant Output (MW) | 147 |
| Contracted Output (MW) | 131 |
| Contract Start Date | July 1995 |
| Contract Term (Years) | 20 years |
|
Indian Point [Member]
|
|
| Long-term Contract for Purchase of Electric Power [Line Items] | |
| Plant Output (MW) | 2,311 |
| Contracted Output (MW) | 500 |
| Contract Start Date | August 2001 |
| Contract Term (Years) | 16 years |
|
Astoria Energy [Member]
|
|
| Long-term Contract for Purchase of Electric Power [Line Items] | |
| Plant Output (MW) | 640 |
| Contracted Output (MW) | 500 |
| Contract Start Date | May 2006 |
| Contract Term (Years) | 10 years |
| X | ||||||||||
|
- Definition
Long Term Contract For Purchase Of Electric Power Date Of Contract Expiration Beginning Date No definition available.
|
| X | ||||||||||
|
- Definition
Long Term Contract For Purchase Of Electric Power Megawatts No definition available.
|
| X | ||||||||||
|
- Definition
Power Plant Output No definition available.
|
| X | ||||||||||
|
- Definition
Term of power purchase agreement years. No definition available.
|
| X | ||||||||||
|
- Details
|
|
Electricity Purchase Agreements - Summary of Estimated Capacity and Other Fixed Payments (Detail) (CECONY [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Fixed payment under the contracts | $ 1,312 | $ 1,282 | $ 1,164 |
|
2015 [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Fixed payment under the contracts | 252 | ||
|
2016 [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Fixed payment under the contracts | 186 | ||
|
2017 [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Fixed payment under the contracts | 135 | ||
|
Year 2018 [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Fixed payment under the contracts | 62 | ||
|
2019 [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Fixed payment under the contracts | 53 | ||
|
All Years Thereafter [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Fixed payment under the contracts | $ 820 | ||
| X | ||||||||||
|
- Definition
Fixed Payments for Long Term Service Arrangements No definition available.
|
| X | ||||||||||
|
- Details
|
|
Electricity Purchase Agreements - Summary of Capacity, Energy and Other Fixed Payments (Detail) (CECONY [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Capacity, energy and other fixed payments | $ 1,312 | $ 1,282 | $ 1,164 |
|
Brooklyn Navy Yard [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Capacity, energy and other fixed payments | 133 | 118 | 93 |
|
Linden Cogeneration [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Capacity, energy and other fixed payments | 381 | 346 | 297 |
|
Indeck Corinth [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Capacity, energy and other fixed payments | 80 | 79 | 66 |
|
Indian Point [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Capacity, energy and other fixed payments | 247 | 220 | 204 |
|
Astoria Energy [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Capacity, energy and other fixed payments | 230 | 183 | 181 |
|
Selkirk [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Capacity, energy and other fixed payments | 144 | 215 | 196 |
|
Independence [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Capacity, energy and other fixed payments | $ 97 | $ 121 | $ 127 |
| X | ||||||||||
|
- Definition
Fixed Payments for Long Term Service Arrangements No definition available.
|
| X | ||||||||||
|
- Details
|
|
Leases - Schedule of Capital Leases (Detail) (Common [Member], USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Leases | ||
| Utility Plant | $ 3 | $ 3 |
|
CECONY [Member]
|
||
| Leases | ||
| Utility Plant | $ 1 | $ 2 |
| X | ||||||||||
|
- Definition
Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Leases - Additional Information (Detail) (USD $)
|
1 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
|
Jan. 31, 2013
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Operating Leased Assets [Line Items] | ||||
| Accumulated amortization | $ 1,800,000 | $ 1,000,000 | ||
| Lease In/Lease Out total investment | 259,000,000 | |||
| Lease In/Lease Out total financed by equity | 93,000,000 | |||
| Lease In/Lease Out total financed by long-term debt | 166,000,000 | |||
| Company's net investment in LILO transactions | 0 | (76,000,000) | ||
| Gross investment in leverage leases | 228,000,000 | |||
| Deferred tax liabilities | 304,000,000 | |||
| Estimated charge after-tax | 150,000,000 | |||
| Gain from LILO transaction termination | 55,000,000 | |||
| Decrease in net income | 1,000,000 | 95,000,000 | ||
| Defray of interest charges relating to potential tax liability | 447,000,000 | |||
| Refund from IRS | 10,000,000 | |||
| Settlement of tax and interest | 38,000,000 | |||
|
Transaction One [Member]
|
||||
| Operating Leased Assets [Line Items] | ||||
| Returned deposit from Internal Revenue Service (IRS) | 125,000,000 | |||
|
Transaction Two [Member]
|
||||
| Operating Leased Assets [Line Items] | ||||
| Returned deposit from Internal Revenue Service (IRS) | 48,000,000 | |||
|
CECONY [Member]
|
||||
| Operating Leased Assets [Line Items] | ||||
| Accumulated amortization | $ 800,000 | $ 600,000 | ||
| X | ||||||||||
|
- Definition
After Tax Estimated Liability For State Administrative Settlement No definition available.
|
| X | ||||||||||
|
- Definition
Amount Deposited With IRS To Defray Potential Interest Costs No definition available.
|
| X | ||||||||||
|
- Definition
Capital Leases Accumulated Amortization No definition available.
|
| X | ||||||||||
|
- Definition
Gain Loss On Contract Termination After Tax No definition available.
|
| X | ||||||||||
|
- Definition
Increase Decrease In Net Income Loss No definition available.
|
| X | ||||||||||
|
- Definition
Lease in lease out total financed by equity. No definition available.
|
| X | ||||||||||
|
- Definition
Lease In Lease Out Total Financed By Non Recourse Long Term Debt No definition available.
|
| X | ||||||||||
|
- Definition
Lease in lease out total investment. No definition available.
|
| X | ||||||||||
|
- Definition
Leveraged Lease Gross Investment In Leveraged Leases Disclosure Investment In Leveraged Leases Gross No definition available.
|
| X | ||||||||||
|
- Definition
Amount of deferred tax liability attributable to taxable temporary differences from leasing arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount the liability recorded for the income tax examination increased or decreased in the current year/accounting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of the additional liability or refund received or expected based on a final settlement with a taxing authority. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net investment in arrangements meeting the criteria for classification as leveraged leases including deferred taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The amount of cash received during the period as refunds for the overpayment of taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Leases - Future Minimum Lease Commitments (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
|---|---|
| Capital Leased Assets [Line Items] | |
| 2015 | $ 1 |
| 2016 | 1 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 0 |
| All years thereafter | 0 |
| Total | 2 |
| Less: amount representing interest | 1 |
| Present value of net minimum lease payment | 1 |
|
CECONY [Member]
|
|
| Capital Leased Assets [Line Items] | |
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 0 |
| All years thereafter | 0 |
| Total | 2 |
| Less: amount representing interest | 1 |
| Present value of net minimum lease payment | $ 1 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of minimum lease payments for capital leases. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of minimum lease payments for capital leases due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of minimum lease payments for capital leases due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of minimum lease payments for capital leases due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of minimum lease payments for capital leases due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of minimum lease payments for capital leases due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of minimum lease payments for capital leases due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount necessary to reduce net minimum lease payments to present value for capital leases. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Leases - Future Minimum Rental Payments for Operating Leases (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
|---|---|
| Operating Leased Assets [Line Items] | |
| 2015 | $ 18 |
| 2016 | 17 |
| 2017 | 16 |
| 2018 | 16 |
| 2019 | 14 |
| All years thereafter | 72 |
| Total | 153 |
|
CECONY [Member]
|
|
| Operating Leased Assets [Line Items] | |
| 2015 | 14 |
| 2016 | 13 |
| 2017 | 12 |
| 2018 | 12 |
| 2019 | 10 |
| All years thereafter | 51 |
| Total | $ 112 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Future minimum rental payments in aggregate as of the balance sheet date under operating leases. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Future rental payments receivable within one year of the balance sheet date under an operating lease. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Future rental payments receivable within the fifth year from the balance sheet date under an operating lease. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Future rental payments receivable within the fourth year from the balance sheet date under an operating lease. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Future rental payments receivable within the third year from the balance sheet date under an operating lease. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Future rental payments receivable within the second year from the balance sheet date under an operating lease. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Future minimum lease payments receivable under operating leases for periods greater than five years following the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Leases - Schedule of Leveraged Lease Transactions Effect on Consolidated Income Statement (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|
| Operating Leased Assets [Line Items] | ||
| Increase/(decrease) in net income | $ (1) | $ (95) |
|
Non Utility Operating Revenue [Member]
|
||
| Operating Leased Assets [Line Items] | ||
| Increase/(decrease) in net income | (27) | |
|
Interest Expense [Member]
|
||
| Operating Leased Assets [Line Items] | ||
| Increase/(decrease) in net income | 13 | (131) |
|
Income Tax Benefit/(Expense) [Member]
|
||
| Operating Leased Assets [Line Items] | ||
| Increase/(decrease) in net income | $ (14) | $ 63 |
| X | ||||||||||
|
- Definition
Increase Decrease In Net Income Loss No definition available.
|
| X | ||||||||||
|
- Details
|
|
Goodwill - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Goodwill [Line Items] | ||
| Goodwill | $ 429 | $ 429 |
|
O&R [Member]
|
||
| Goodwill [Line Items] | ||
| Goodwill | 406 | 406 |
|
CECONY [Member]
|
||
| Goodwill [Line Items] | ||
| Goodwill | 245 | 245 |
|
O&R [Member]
|
||
| Goodwill [Line Items] | ||
| Goodwill | 161 | 161 |
|
Energy Services Acquired [Member]
|
||
| Goodwill [Line Items] | ||
| Goodwill | $ 23 | $ 23 |
| X | ||||||||||
|
- Definition
Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Income Tax - Schedule of Components of Income Tax (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Income Tax [Line Items] | |||
| State - Current | $ 59 | $ 151 | $ 29 |
| State - Deferred | 61 | (70) | 97 |
| Federal - Current | (9) | 285 | (13) |
| Federal - Deferred | 463 | 115 | 493 |
| Amortization of investment tax credits | (6) | (5) | (6) |
| Total income tax expense | 568 | 476 | 600 |
|
CECONY [Member]
|
|||
| Income Tax [Line Items] | |||
| State - Current | 66 | 111 | 53 |
| State - Deferred | 65 | (14) | 53 |
| Federal - Current | 158 | 187 | 110 |
| Federal - Deferred | 271 | 241 | 318 |
| Amortization of investment tax credits | (5) | (5) | (5) |
| Total income tax expense | $ 555 | $ 520 | $ 529 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount deducted from an entities' taxes, reflecting a percentage of an amount invested in certain assets spread over the useful life of those assets; includes deferred investment tax credits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Income Tax - Schedule of Differences on Deferred Tax Assets and Liabilities (Detail) (USD $)
|
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|
| Income Tax Contingency [Line Items] | ||
| Property basis differences | $ 7,510,000,000 | $ 7,012,000,000 |
| Unrecognized pension and other postretirement costs | 1,968,000,000 | 1,109,000,000 |
| Regulatory asset - future income tax | 910,000,000 | 871,000,000 |
| Environmental remediation costs | 376,000,000 | 381,000,000 |
| Deferred storm costs | 129,000,000 | 179,000,000 |
| Equity investments | 168,000,000 | 21,000,000 |
| Other regulatory assets | 347,000,000 | 402,000,000 |
| Unamortized investment tax credits | 126,000,000 | 43,000,000 |
| Total deferred tax liabilities and investment tax credits | 11,534,000,000 | 10,018,000,000 |
| Accrued pension and other postretirement costs | 1,306,000,000 | 458,000,000 |
| Regulatory liabilities | 615,000,000 | 604,000,000 |
| Superfund and other environmental costs | 306,000,000 | 301,000,000 |
| Asset retirement obligations | 77,000,000 | 58,000,000 |
| Loss carryforwards | 21,000,000 | 12,000,000 |
| Loss carryforwards, valuation reserve | (11,000,000) | (12,000,000) |
| Other | 272,000,000 | 253,000,000 |
| Total deferred tax assets | 2,586,000,000 | 1,674,000,000 |
| Net deferred tax liabilities and investment tax credits | 8,948,000,000 | 8,344,000,000 |
| Deferred income taxes and investment tax credits - noncurrent | 9,076,000,000 | 8,466,000,000 |
| Deferred tax assets - current | (128,000,000) | (122,000,000) |
| Net deferred tax liabilities and investment tax credits | 8,948,000,000 | 8,344,000,000 |
|
CECONY [Member]
|
||
| Income Tax Contingency [Line Items] | ||
| Property basis differences | 6,938,000,000 | 6,424,000,000 |
| Unrecognized pension and other postretirement costs | 1,872,000,000 | 1,060,000,000 |
| Regulatory asset - future income tax | 863,000,000 | 825,000,000 |
| Environmental remediation costs | 333,000,000 | 337,000,000 |
| Deferred storm costs | 91,000,000 | 136,000,000 |
| Other regulatory assets | 300,000,000 | 364,000,000 |
| Unamortized investment tax credits | 37,000,000 | 42,000,000 |
| Total deferred tax liabilities and investment tax credits | 10,434,000,000 | 9,188,000,000 |
| Accrued pension and other postretirement costs | 1,155,000,000 | 364,000,000 |
| Regulatory liabilities | 574,000,000 | 569,000,000 |
| Superfund and other environmental costs | 264,000,000 | 256,000,000 |
| Asset retirement obligations | 75,000,000 | 58,000,000 |
| Other | 203,000,000 | 209,000,000 |
| Total deferred tax assets | 2,271,000,000 | 1,456,000,000 |
| Net deferred tax liabilities and investment tax credits | 8,163,000,000 | 7,732,000,000 |
| Deferred income taxes and investment tax credits - noncurrent | 8,257,000,000 | 7,832,000,000 |
| Deferred tax assets - current | (94,000,000) | (100,000,000) |
| Net deferred tax liabilities and investment tax credits | $ 8,163,000,000 | $ 7,732,000,000 |
| X | ||||||||||
|
- Definition
Deferred income taxes and credits, Gross No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Assets Asset Retirement Obligations No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Assets, Pension and other postretirement costs No definition available.
|
| X | ||||||||||
|
- Definition
Deferred tax assets superfund and environmental costs. No definition available.
|
| X | ||||||||||
|
- Definition
Deferred tax liabilities environmental redemption costs. No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Liabilities Equity Method Investments No definition available.
|
| X | ||||||||||
|
- Definition
Deferred tax liabilities other regulatory assets. No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Liabilities Pension And Other Postretirement Costs No definition available.
|
| X | ||||||||||
|
- Definition
Deferred tax liabilities storm costs. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of deferred income tax expense (benefit) and income tax credits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences derived regulatory assets and liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred tax liability attributable to taxable temporary differences net of deferred tax asset attributable to deductible temporary differences and carryforwards after valuation allowances. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred tax liability attributable to taxable temporary differences from investments in unconsolidated subsidiaries and investments in other affiliates which are not controlled nor consolidated. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred tax liability attributable to taxable temporary differences from regulatory assets and liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Income Tax - Schedule of Income Tax Reconciliation (Detail)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Income Tax Contingency [Line Items] | |||
| Federal | 35.00% | 35.00% | 35.00% |
| State income tax | 5.00% | 4.00% | 4.00% |
| Cost of removal | (5.00%) | (5.00%) | (4.00%) |
| Manufacturing deduction | (1.00%) | ||
| Other | (1.00%) | (2.00%) | (1.00%) |
| Effective tax rate | 34.00% | 31.00% | 34.00% |
|
CECONY [Member]
|
|||
| Income Tax Contingency [Line Items] | |||
| Federal | 35.00% | 35.00% | 35.00% |
| State income tax | 5.00% | 5.00% | 4.00% |
| Cost of removal | (5.00%) | (5.00%) | (4.00%) |
| Other | (1.00%) | (1.00%) | (1.00%) |
| Effective tax rate | 34.00% | 34.00% | 34.00% |
| X | ||||||||||
|
- Definition
Effective Income Tax Rate Reconciliation, cost of removal No definition available.
|
| X | ||||||||||
|
- Definition
Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for qualified production activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Income Tax - Additional Information (Detail) (USD $)
|
1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 1 Months Ended | |||
|---|---|---|---|---|---|---|---|---|
|
Mar. 31, 2014
|
Feb. 28, 2014
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Jan. 31, 2015
Subsequent Event [Member]
|
Dec. 31, 2014
CECONY [Member]
|
Jan. 31, 2015
CECONY [Member]
Subsequent Event [Member]
|
Dec. 31, 2014
New York City [Member]
|
|
| Operating Loss Carryforwards [Line Items] | ||||||||
| Net operating loss carryforward expire date | 2019 through 2034 | |||||||
| Deferred tax asset, loss carryforward | $ 21,000,000 | $ 12,000,000 | ||||||
| Deferred tax asset, valuation allowance | 11,000,000 | |||||||
| Corporate franchise tax rate | 6.50% | 7.10% | ||||||
| Decrease in accumulated deferred tax liabilities | 74,000,000 | 69,000,000 | ||||||
| Decrease in regulatory asset | 11,000,000 | 10,000,000 | ||||||
| Increase in regulatory liability | 62,000,000 | 59,000,000 | ||||||
| Expired depreciation bonus percentage | 50.00% | |||||||
| Income tax refund requested | 224,000,000 | 128,000,000 | ||||||
| Increase in estimated prior year liabilities | 27,000,000 | 253,000,000 | 2,000,000 | |||||
| Effective income tax rate reconciliation ,uncertainty of taxes | 26,000,000 | 2,000,000 | ||||||
| Effective income tax rate reconciliation, uncertainty net of federal taxes | 17,000,000 | 1,000,000 | ||||||
| Interest charges related to uncertain tax positions | 121,000,000 | |||||||
| Reduced interest expenses | 10,000,000 | |||||||
| Interest charges related to uncertain tax position, LILO transaction | 131,000,000 | |||||||
| Amount of interest and penalties in their consolidated balance sheets | 0 | 0 | ||||||
| Unrecognized tax benefits amount | 34,000,000 | 2,000,000 | ||||||
| Unrecognized tax benefits, net of federal taxes | $ 22,000,000 | $ 1,000,000 | ||||||
| X | ||||||||||
|
- Definition
Expired depreciation bonus percentage. No definition available.
|
| X | ||||||||||
|
- Definition
Income tax reconciliation tax contingencies net of federal taxes. No definition available.
|
| X | ||||||||||
|
- Definition
Income Tax Refund Requested No definition available.
|
| X | ||||||||||
|
- Definition
Increase Decrease In Deferred Tax Liabilities No definition available.
|
| X | ||||||||||
|
- Definition
Increase Decrease In Regulatory Assets No definition available.
|
| X | ||||||||||
|
- Definition
Interest Charges On Uncertain Tax Position No definition available.
|
| X | ||||||||||
|
- Definition
Lease In/Lease Out Transactions, Interest Paid No definition available.
|
| X | ||||||||||
|
- Definition
Net Operating Loss Carryforward Expiration Period Description No definition available.
|
| X | ||||||||||
|
- Definition
Reversal Of Interest Accrual Related To Uncertain Tax Position No definition available.
|
| X | ||||||||||
|
- Definition
Unrecognized Tax Benefits that Would Impact Effective Tax Rate Net Of Federal Taxes No definition available.
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax rates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of estimated penalties accrued as of the balance sheet date arising from income tax examinations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in income tax contingencies. Including, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in regulated liabilities. Regulated liabilities are created when regulatory agency permits an entity to defer revenues to the balance sheet. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Income Tax - Summary of Unrecognized Tax Benefits (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Income Tax Contingency [Line Items] | |||
| Balance at January 1 | $ 9 | $ 86 | $ 130 |
| Additions based on tax positions related to the current year | 5 | 12 | |
| Additions based on tax positions of prior years | 27 | 253 | |
| Reductions for tax positions of prior years | (2) | (86) | (57) |
| Settlements | (249) | 1 | |
| Balance at December 31 | 34 | 9 | 86 |
|
CECONY [Member]
|
|||
| Income Tax Contingency [Line Items] | |||
| Balance at January 1 | 74 | 114 | |
| Additions based on tax positions related to the current year | 11 | ||
| Additions based on tax positions of prior years | 2 | ||
| Reductions for tax positions of prior years | (74) | (52) | |
| Settlements | 1 | ||
| Balance at December 31 | $ 2 | $ 74 | |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Stock-Based Compensation - Additional Information (Detail) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock option awards, LTIP | 5,000,000 | ||
| Stock options vesting period | 3 years | ||
| Income tax benefit | $ 12,000,000 | $ 11,000,000 | $ 8,000,000 |
| Number of units issued | 37,972 | ||
| LTIP Weighted Average Price | $ 55.51 | ||
| Maximum employer contribution match | 1 | ||
| Amount employee contribution for employer match | 9 | ||
| Maximum employee investment per year | 25,000 | ||
| Maximum percentage allowed to invest | 20.00% | ||
| Shares purchased on the open market | 708,276 | 864,281 | 665,718 |
| Weighted average share price per share, on shares purchased on open market | $ 56.23 | $ 57.24 | $ 59.72 |
|
Time Based Awards [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Total expense recognized in future periods | 2,000,000 | ||
| Weighted average period | 1 year | ||
|
CECONY [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Income tax benefit | 10,000,000 | 10,000,000 | 7,000,000 |
|
CECONY [Member] | Time Based Awards [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Total expense recognized in future periods | 2,000,000 | ||
| Weighted average period | 1 year | ||
|
Employee Stock Option [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Income tax benefit | 1,000,000 | 10,000,000 | |
|
Restricted Stock Units [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock options vesting period | 3 years | ||
|
TSR Portion [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Adjustment percentage used for Performance awards | 50.00% | ||
| Factor used for adjustment of Performance awards, low end | 0.00% | ||
| Factor used for adjustment of Performance awards, high end | 200.00% | ||
|
Non-TSR Portion [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Adjustment percentage used for Performance awards | 50.00% | ||
| Factor used for adjustment of Performance awards, low end | 0.00% | ||
| Factor used for adjustment of Performance awards, high end | 200.00% | ||
|
Non-TSR Portion [Member] | Management Employees [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Factor used for adjustment of Performance awards, low end | 0.00% | ||
| Factor used for adjustment of Performance awards, high end | 120.00% | ||
|
Performance-Based Restricted Stock [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Common stock received upon vesting | One share | ||
| Compensation expense to be recognized | 25,000,000 | ||
| Weighted average period | 1 year | ||
|
Performance-Based Restricted Stock [Member] | CECONY [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Compensation expense to be recognized | $ 19,000,000 | ||
| Weighted average period | 1 year | ||
|
Maximum [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock option vesting period | 10 years | ||
| X | ||||||||||
|
- Definition
LTIP weighted average price. No definition available.
|
| X | ||||||||||
|
- Definition
Share-based Compensation Arrangement by Share-based Payment Award, contribution amount by employee for matching No definition available.
|
| X | ||||||||||
|
- Definition
Share-based Compensation Arrangement by Share-based Payment Award, Maximum employee contribution per year No definition available.
|
| X | ||||||||||
|
- Definition
Share-based Compensation Arrangement by Share-based Payment Award, Maximum employer contribution No definition available.
|
| X | ||||||||||
|
- Definition
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares, LTIP Plan No definition available.
|
| X | ||||||||||
|
- Definition
Share-based Compensation Arrangement by Share-based Payment Award, Performance RSU's, adjustment percentage No definition available.
|
| X | ||||||||||
|
- Definition
Share-based Compensation Arrangement by Share-based Payment Award, Performance RSU's, Factor used, high range No definition available.
|
| X | ||||||||||
|
- Definition
Share-based Compensation Arrangement by Share-based Payment Award, Performance RSU's, Factor used, low range No definition available.
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Stock Options Expiration Period No definition available.
|
| X | ||||||||||
|
- Definition
Unrecognized Share Based Compensation Restricted Stock and Unit Expense Weighted Average Amortization Period, Remaining Term No definition available.
|
| X | ||||||||||
|
- Definition
Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of shares issued pursuant to the terms of a deferred compensation arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Unrecognized cost of unvested share-based compensation awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average of per share prices paid for shares purchased on the open market for issuance to employees under the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of shares purchased on the open market during the period for issuance to employees under the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Stock-Based Compensation - Stock-Based Compensation Expense (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | $ 29 | $ 27 | $ 19 |
| Income tax benefit | 12 | 11 | 8 |
|
Performance-Based Restricted Stock [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | 22 | 20 | 14 |
|
Time-Based Restricted Stock [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | 2 | 2 | 1 |
|
Non-Employee Director Deferred Stock Compensation [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | 2 | 2 | 1 |
|
Employee Stock [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | 3 | 3 | 3 |
|
CECONY [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | 26 | 25 | 18 |
| Income tax benefit | 10 | 10 | 7 |
|
CECONY [Member] | Performance-Based Restricted Stock [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | 19 | 18 | 13 |
|
CECONY [Member] | Time-Based Restricted Stock [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | 2 | 2 | 1 |
|
CECONY [Member] | Non-Employee Director Deferred Stock Compensation [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | 2 | 2 | 1 |
|
CECONY [Member] | Employee Stock [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | $ 3 | $ 3 | $ 3 |
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Compensation Cost Net Of Income Tax No definition available.
|
| X | ||||||||||
|
- Definition
The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Stock-Based Compensation - Summary of Status of Stock Options (Detail) (USD $)
|
12 Months Ended |
|---|---|
|
Dec. 31, 2014
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Outstanding Shares, Beginning Balance | 481,310 |
| Exercised, Shares | (251,460) |
| Forfeited, Shares | 0 |
| Outstanding Shares, Ending Balance | 229,850 |
| Weighted Average Exercise Price Outstanding, Beginning Balance | $ 43.38 |
| Weighted Average Exercise Price, Exercised | $ 43.75 |
| Weighted Average Exercise Price, Forfeited | $ 0 |
| Weighted Average Exercise Price Outstanding, Ending Balance | $ 42.99 |
|
CECONY [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Outstanding Shares, Beginning Balance | 381,010 |
| Exercised, Shares | (189,660) |
| Forfeited, Shares | 0 |
| Outstanding Shares, Ending Balance | 191,350 |
| Weighted Average Exercise Price Outstanding, Beginning Balance | $ 43.34 |
| Weighted Average Exercise Price, Exercised | $ 43.68 |
| Weighted Average Exercise Price, Forfeited | $ 0 |
| Weighted Average Exercise Price Outstanding, Ending Balance | $ 43.00 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
|
| X | ||||||||||
|
- Definition
Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. No definition available.
|
| X | ||||||||||
|
- Definition
Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Stock-Based Compensation - Summary of Status of Stock Options (Parenthetical) (Detail)
|
12 Months Ended |
|---|---|
|
Dec. 31, 2014
|
|
| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | |
| Weighted average remaining contractual life | 1 year |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Stock-Based Compensation - Summary of Stock Options (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|
| Aggregate intrinsic value | ||
| Options outstanding | $ 5 | $ 6 |
| Options exercised | 4 | 2 |
| Cash received by Con Edison for payment of exercise price | 11 | 5 |
|
CECONY [Member]
|
||
| Aggregate intrinsic value | ||
| Options outstanding | 4 | 5 |
| Options exercised | 3 | 2 |
| Cash received by Con Edison for payment of exercise price | $ 8 | $ 4 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Stock-Based Compensation - Assumptions Used to Calculate Fair Value (Detail)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | |||
| Risk-free interest rate, Minimum | 0.23% | 0.13% | 0.15% |
| Risk-free interest rate, Maximum | 3.07% | 5.17% | 3.39% |
| Expected term | 3 years | 3 years | 3 years |
| Expected share price volatility | 13.14% | 13.52% | 15.27% |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The maximum risk-free interest rate assumption that is used in valuing an option on its own shares. No definition available.
|
| X | ||||||||||
|
- Definition
The minimum risk-free interest rate assumption that is used in valuing an option on its own shares. No definition available.
|
|
Stock-Based Compensation - Assumptions Used to Calculate Fair Value (Parenthetical) (Detail)
|
12 Months Ended |
|---|---|
|
Dec. 31, 2014
|
|
| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | |
| Expected volatility calculation period | 3 years |
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Stock Volatility Term No definition available.
|
| X | ||||||||||
|
- Details
|
|
Stock-Based Compensation - Summary of Changes in Status of Performance RSUs' (Detail) (Performance-Based Restricted Stock [Member], USD $)
|
12 Months Ended |
|---|---|
|
Dec. 31, 2014
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Non-vested Units, Beginning Balance | 1,121,598 |
| Granted, Units | 428,310 |
| Vested, Units | (411,704) |
| Forfeited, Units | (37,597) |
| Non-vested Units, Ending Balance | 1,100,607 |
|
CECONY [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Non-vested Units, Beginning Balance | 897,052 |
| Granted, Units | 342,001 |
| Vested, Units | (323,483) |
| Forfeited, Units | (35,047) |
| Non-vested Units, Ending Balance | 880,523 |
|
TSR Portion [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Weighted Average Grant Date Fair Value Non-vested, Beginning Balance | $ 49.32 |
| Weighted Average Grant Date Fair Value, Granted | $ 25.34 |
| Weighted Average Grant Date Fair Value, Vested | $ 43.84 |
| Weighted Average Grant Date Fair Value, Forfeited | $ 40.90 |
| Weighted Average Grant Date Fair Value Non-vested, Ending Balance | $ 42.33 |
|
TSR Portion [Member] | CECONY [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Weighted Average Grant Date Fair Value Non-vested, Beginning Balance | $ 49.38 |
| Weighted Average Grant Date Fair Value, Granted | $ 25.86 |
| Weighted Average Grant Date Fair Value, Vested | $ 43.93 |
| Weighted Average Grant Date Fair Value, Forfeited | $ 40.84 |
| Weighted Average Grant Date Fair Value Non-vested, Ending Balance | $ 42.58 |
|
Non-TSR Portion [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Weighted Average Grant Date Fair Value Non-vested, Beginning Balance | $ 55.31 |
| Weighted Average Grant Date Fair Value, Granted | $ 53.65 |
| Weighted Average Grant Date Fair Value, Vested | $ 50.05 |
| Weighted Average Grant Date Fair Value, Forfeited | $ 55.97 |
| Weighted Average Grant Date Fair Value Non-vested, Ending Balance | $ 56.61 |
|
Non-TSR Portion [Member] | CECONY [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Weighted Average Grant Date Fair Value Non-vested, Beginning Balance | $ 55.42 |
| Weighted Average Grant Date Fair Value, Granted | $ 53.71 |
| Weighted Average Grant Date Fair Value, Vested | $ 50.08 |
| Weighted Average Grant Date Fair Value, Forfeited | $ 55.95 |
| Weighted Average Grant Date Fair Value Non-vested, Ending Balance | $ 56.70 |
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Stock-Based Compensation - Summary of Changes in Status of Performance RSUs' (Parenthetical) (Detail) (Performance-Based Restricted Stock [Member])
|
12 Months Ended |
|---|---|
|
Dec. 31, 2014
|
|
|
TSR Portion [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Adjustment percentage used for Performance awards | 50.00% |
|
Non-TSR Portion [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Adjustment percentage used for Performance awards | 50.00% |
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement Percentage of RSU No definition available.
|
| X | ||||||||||
|
- Details
|
|
Stock-Based Compensation - Summary of Changes in Status of Time-Based Awards (Detail) (Time Based Awards [Member], USD $)
|
12 Months Ended |
|---|---|
|
Dec. 31, 2014
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Non-vested Units, Beginning Balance | 66,580 |
| Granted, Units | 22,990 |
| Vested, Units | (20,900) |
| Forfeited, Units | (3,247) |
| Non-vested Units, Ending Balance | 65,423 |
| Weighted Average Grant Date Fair Value Non-vested, Beginning Balance | $ 56.92 |
| Weighted Average Grant Date Fair Value, Granted | $ 53.65 |
| Weighted Average Grant Date Fair Value, Vested | $ 50.74 |
| Weighted Average Grant Date Fair Value, Forfeited | $ 58.06 |
| Weighted Average Grant Date Fair Value Non-vested, Ending Balance | $ 57.65 |
|
CECONY [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Non-vested Units, Beginning Balance | 63,030 |
| Granted, Units | 21,790 |
| Vested, Units | (19,800) |
| Forfeited, Units | (2,847) |
| Non-vested Units, Ending Balance | 62,173 |
| Weighted Average Grant Date Fair Value Non-vested, Beginning Balance | $ 56.93 |
| Weighted Average Grant Date Fair Value, Granted | $ 53.65 |
| Weighted Average Grant Date Fair Value, Vested | $ 50.75 |
| Weighted Average Grant Date Fair Value, Forfeited | $ 58.27 |
| Weighted Average Grant Date Fair Value Non-vested, Ending Balance | $ 57.64 |
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Financial Information by Business Segment - Financial Data for Business Segments (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Segment Reporting Information [Line Items] | |||
| Operating revenues | $ 12,919 | $ 12,354 | $ 12,188 |
| Depreciation and amortization | 1,071 | 1,024 | 955 |
| Operating income | 2,209 | 2,244 | 2,339 |
| Interest charges | 591 | 719 | 604 |
| Income taxes on operating income | 589 | 504 | 594 |
| Total assets | 44,308 | 40,647 | 41,209 |
| Construction expenditures | 2,721 | 2,648 | 2,538 |
|
CECONY [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 10,786 | 10,430 | 10,187 |
| Depreciation and amortization | 991 | 946 | 894 |
| Operating income | 2,139 | 2,060 | 2,093 |
| Interest charges | 537 | 521 | 545 |
| Income taxes on operating income | 562 | 531 | 514 |
| Total assets | 39,637 | 36,258 | 36,885 |
| Construction expenditures | 2,132 | 2,135 | 1,909 |
|
CECONY [Member] | Electric Transmission [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Depreciation and amortization | 781 | 749 | 710 |
| Operating income | 1,712 | 1,595 | 1,693 |
| Interest charges | 412 | 402 | 423 |
| Income taxes on operating income | 425 | 380 | 393 |
| Total assets | 30,421 | 27,673 | 28,339 |
| Construction expenditures | 1,500 | 1,471 | 1,375 |
|
CECONY [Member] | Gas [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Depreciation and amortization | 132 | 130 | 120 |
| Operating income | 314 | 362 | 346 |
| Interest charges | 89 | 83 | 82 |
| Income taxes on operating income | 88 | 112 | 99 |
| Total assets | 6,530 | 6,008 | 5,925 |
| Construction expenditures | 549 | 536 | 426 |
|
CECONY [Member] | Steam [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Depreciation and amortization | 78 | 67 | 64 |
| Operating income | 113 | 103 | 54 |
| Interest charges | 36 | 36 | 40 |
| Income taxes on operating income | 49 | 39 | 22 |
| Total assets | 2,686 | 2,577 | 2,621 |
| Construction expenditures | 83 | 128 | 108 |
|
O&R [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Depreciation and amortization | 61 | 56 | 53 |
| Operating income | 128 | 120 | 123 |
| Interest charges | 35 | 37 | 31 |
| Income taxes on operating income | 35 | 20 | 28 |
| Total assets | 2,837 | 2,545 | 2,671 |
| Construction expenditures | 142 | 135 | 137 |
|
O&R [Member] | Electric Transmission [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Depreciation and amortization | 46 | 41 | 38 |
| Operating income | 103 | 87 | 83 |
| Interest charges | 24 | 25 | 19 |
| Income taxes on operating income | 29 | 13 | 17 |
| Total assets | 2,042 | 1,898 | 1,960 |
| Construction expenditures | 105 | 98 | 98 |
|
O&R [Member] | Gas [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Depreciation and amortization | 15 | 15 | 15 |
| Operating income | 25 | 33 | 40 |
| Interest charges | 10 | 11 | 10 |
| Income taxes on operating income | 6 | 7 | 11 |
| Total assets | 794 | 645 | 706 |
| Construction expenditures | 37 | 37 | 39 |
|
O&R [Member] | Other [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Interest charges | 1 | 1 | 2 |
| Total assets | 1 | 2 | 5 |
|
Competitive Energy Businesses [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Depreciation and amortization | 19 | 23 | 8 |
| Operating income | (60) | 63 | 125 |
| Interest charges | (8) | 135 | 1 |
| Income taxes on operating income | (8) | (41) | 52 |
| Total assets | 1,026 | 1,314 | 1,061 |
| Construction expenditures | 447 | 378 | 492 |
|
Other [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Depreciation and amortization | (1) | ||
| Operating income | 2 | 1 | (2) |
| Interest charges | 27 | 26 | 27 |
| Income taxes on operating income | (6) | ||
| Total assets | 808 | 530 | 592 |
|
Operating Segments [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 12,919 | 12,354 | 12,188 |
|
Operating Segments [Member] | CECONY [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 10,786 | 10,430 | 10,187 |
|
Operating Segments [Member] | CECONY [Member] | Electric Transmission [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 8,437 | 8,131 | 8,176 |
|
Operating Segments [Member] | CECONY [Member] | Gas [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 1,721 | 1,616 | 1,415 |
|
Operating Segments [Member] | CECONY [Member] | Steam [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 628 | 683 | 596 |
|
Operating Segments [Member] | O&R [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 892 | 833 | 795 |
|
Operating Segments [Member] | O&R [Member] | Electric Transmission [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 680 | 628 | 592 |
|
Operating Segments [Member] | O&R [Member] | Gas [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 212 | 205 | 203 |
|
Operating Segments [Member] | Competitive Energy Businesses [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 1,244 | 1,096 | 1,213 |
|
Operating Segments [Member] | Other [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | (3) | (5) | (7) |
|
Inter-Segment Revenues [Member] | CECONY [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | (106) | (103) | (97) |
|
Inter-Segment Revenues [Member] | CECONY [Member] | Electric Transmission [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 16 | 16 | 15 |
|
Inter-Segment Revenues [Member] | CECONY [Member] | Gas [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 6 | 5 | 5 |
|
Inter-Segment Revenues [Member] | CECONY [Member] | Steam [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 84 | 82 | 77 |
|
Inter-Segment Revenues [Member] | Competitive Energy Businesses [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | (10) | 5 | 8 |
|
Inter-Segment Revenues [Member] | Other [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | $ 10 | $ (5) | $ (8) |
| X | ||||||||||
|
- Definition
Operating Income Tax Expense Benefit No definition available.
|
| X | ||||||||||
|
- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate costs related to construction and development services during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Interest and debt related expenses associated with nonoperating financing activities of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net result for the period of deducting operating expenses from operating revenues. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Financial Information by Business Segment - Financial Data for Business Segments (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Segment Reporting Information [Line Items] | |||
| Income taxes on non-operating income | $ (21) | $ (28) | $ 6 |
|
CECONY [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Income taxes on non-operating income | $ (7) | $ (11) | $ 15 |
| X | ||||||||||
|
- Definition
Income tax (benefit) applicable to non-operating income. No definition available.
|
| X | ||||||||||
|
- Details
|
|
Derivative Instruments and Hedging Activities - Fair Values of Commodity Derivatives Including Offsetting of Assets and Liabilities (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | $ (163) | $ 53 |
| Gross Amounts Offset | 140 | (3) |
| Net Amounts of Assets/(Liabilities) | (23) | 50 |
|
Fair Value of Derivative Assets, Current [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | 111 | 134 |
| Gross Amounts Offset | (67) | (77) |
| Net Amounts of Assets/(Liabilities) | 44 | 57 |
|
Fair Value of Derivative Assets, Non-current [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | 34 | 32 |
| Gross Amounts Offset | (23) | (24) |
| Net Amounts of Assets/(Liabilities) | 11 | 8 |
|
Fair Value of Derivative Assets [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | 145 | 166 |
| Gross Amounts Offset | (90) | (101) |
| Net Amounts of Assets/(Liabilities) | 55 | 65 |
|
Fair Value of Derivative Liabilities, Current [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | (242) | (82) |
| Gross Amounts Offset | 139 | 72 |
| Net Amounts of Assets/(Liabilities) | (103) | (10) |
|
Fair Value of Derivative Liabilities, Non-current [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | (66) | (31) |
| Gross Amounts Offset | 91 | 26 |
| Net Amounts of Assets/(Liabilities) | 25 | (5) |
|
Fair Value of Derivative Liabilities [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | (308) | (113) |
| Gross Amounts Offset | 230 | 98 |
| Net Amounts of Assets/(Liabilities) | (78) | (15) |
|
CECONY [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | (90) | (10) |
| Gross Amounts Offset | 45 | 5 |
| Net Amounts of Assets/(Liabilities) | (45) | (5) |
|
CECONY [Member] | Fair Value of Derivative Assets, Current [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | 26 | 27 |
| Gross Amounts Offset | (15) | (19) |
| Net Amounts of Assets/(Liabilities) | 11 | 8 |
|
CECONY [Member] | Fair Value of Derivative Assets, Non-current [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | 22 | 14 |
| Gross Amounts Offset | (20) | (13) |
| Net Amounts of Assets/(Liabilities) | 2 | 1 |
|
CECONY [Member] | Fair Value of Derivative Assets [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | 48 | 41 |
| Gross Amounts Offset | (35) | (32) |
| Net Amounts of Assets/(Liabilities) | 13 | 9 |
|
CECONY [Member] | Fair Value of Derivative Liabilities, Current [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | (96) | (32) |
| Gross Amounts Offset | 48 | 21 |
| Net Amounts of Assets/(Liabilities) | (48) | (11) |
|
CECONY [Member] | Fair Value of Derivative Liabilities, Non-current [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | (42) | (19) |
| Gross Amounts Offset | 32 | 16 |
| Net Amounts of Assets/(Liabilities) | (10) | (3) |
|
CECONY [Member] | Fair Value of Derivative Liabilities [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | (138) | (51) |
| Gross Amounts Offset | 80 | 37 |
| Net Amounts of Assets/(Liabilities) | $ (58) | $ (14) |
| X | ||||||||||
|
- Definition
Derivative Asset (Liability), Gross Amount Offset in Balance Sheet No definition available.
|
| X | ||||||||||
|
- Definition
Gross Amounts of Recognized Assets Liabilities No definition available.
|
| X | ||||||||||
|
- Definition
Fair value of the assets less the liabilities of a derivative or group of derivatives. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Derivative Instruments and Hedging Activities - Fair Values of Commodity Derivatives Including Offsetting of Assets and Liabilities (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Derivatives, Fair Value [Line Items] | ||
| Margin deposits | $ 27 | $ 17 |
|
CECONY [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Margin deposits | $ 25 | $ 16 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The amount of cash or securities placed with a broker or counterparty as security for a trading or derivatives securities position which was partially obtained with funds provided by the broker dealer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Derivative Instruments and Hedging Activities - Realized and Unrealized Gains or Losses on Commodity Derivatives (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | $ (9) | $ 14 |
| Total deferred gains/(losses) | (56) | 35 |
| Net deferred gains/(losses) | (65) | 49 |
| Pre-tax gain/(loss) recognized in income | ||
| Total pre-tax gain/(loss) recognized in income | (123) | 72 |
|
Deferred Derivative Gains - Current [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | (10) | 14 |
|
Deferred Derivative Gains, Long-term [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | 1 | |
|
Deferred Derivative Losses, Current [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | (75) | 47 |
|
Recoverable Energy Costs - Current [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | 36 | (39) |
|
Deferred Derivative Losses, Noncurrent [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | (17) | 27 |
|
CECONY [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | (6) | 11 |
| Total deferred gains/(losses) | (61) | 14 |
| Net deferred gains/(losses) | (67) | 25 |
|
CECONY [Member] | Deferred Derivative Gains - Current [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | (7) | 11 |
|
CECONY [Member] | Deferred Derivative Gains, Long-term [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | 1 | |
|
CECONY [Member] | Deferred Derivative Losses, Current [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | (70) | 38 |
|
CECONY [Member] | Recoverable Energy Costs - Current [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | 26 | (37) |
|
CECONY [Member] | Deferred Derivative Losses, Noncurrent [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | (17) | 13 |
|
Purchased Power Costs [Member]
|
||
| Pre-tax gain/(loss) recognized in income | ||
| Total pre-tax gain/(loss) recognized in income | (37) | 90 |
|
Gas Purchased for Resale [Member]
|
||
| Pre-tax gain/(loss) recognized in income | ||
| Total pre-tax gain/(loss) recognized in income | (115) | (27) |
|
Non-utility Revenue [Member]
|
||
| Pre-tax gain/(loss) recognized in income | ||
| Total pre-tax gain/(loss) recognized in income | $ 29 | $ 9 |
| X | ||||||||||
|
- Definition
Deferred Derivative Gains Losses No definition available.
|
| X | ||||||||||
|
- Definition
Deferred gain/(loss), liability No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Net deferred gain/(loss) No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Derivative Instruments and Hedging Activities - Realized and Unrealized Gains or Losses on Commodity Derivatives (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|
|
Non Utility Operating Revenue [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Unrealized gain/(loss) on derivatives | $ 4 | |
|
Purchased Power Costs [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Unrealized gain/(loss) on derivatives | $ 132 | $ 74 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Derivative Instruments and Hedging Activities - Hedged Volume of Derivative Transactions (Detail)
|
12 Months Ended |
|---|---|
|
Dec. 31, 2014
MWh
|
|
|
Electric Energy Derivative [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| MWHs | 17,792,555 |
|
Electric Capacity Derivative [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| MWs | 7,706 |
|
Natural Gas Derivative [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Dths | 66,793,011 |
|
CECONY [Member] | Electric Energy Derivative [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| MWHs | 5,543,250 |
|
CECONY [Member] | Electric Capacity Derivative [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| MWs | 2,100 |
|
CECONY [Member] | Natural Gas Derivative [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Dths | 62,065,000 |
| X | ||||||||||
|
- Definition
Dths No definition available.
|
| X | ||||||||||
|
- Definition
MWHS No definition available.
|
| X | ||||||||||
|
- Definition
MW-Months No definition available.
|
| X | ||||||||||
|
- Details
|
|
Derivative Instruments and Hedging Activities - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 31, 2014
|
|
| Investment Holdings [Line Items] | |
| Energy supply and hedging activities credit exposure total | $ 148 |
| Makeup of net credit exposure independent system operators | 45 |
| Makeup of net credit exposure with commodity exchange brokers | 79 |
| Makeup of net credit exposure with investment-grade counterparties | 20 |
| Makeup of net credit exposure non-investment grade/non-rated counterparties | 4 |
|
CECONY [Member]
|
|
| Investment Holdings [Line Items] | |
| Energy supply and hedging activities credit exposure total | $ 25 |
| X | ||||||||||
|
- Definition
Credit Exposure Independent System Operators No definition available.
|
| X | ||||||||||
|
- Definition
Credit exposure nonrated counterparties No definition available.
|
| X | ||||||||||
|
- Definition
Maximum Potential Future Exposure On Credit Risk Derivatives With Commodity Exchange Brokers No definition available.
|
| X | ||||||||||
|
- Definition
Maximum Potential Future Exposure On Credit Risk Derivatives With Investment Grade Counterparties No definition available.
|
| X | ||||||||||
|
- Definition
Maximum potential amount of future undiscounted payments that could be required under the credit derivative, before reduction for potential recoveries under recourse or collateralization provisions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Derivative Instruments and Hedging Activities - Aggregate Fair Value of Companies' Derivative Instruments with Credit-Risk-Related Contingent Features (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
|---|---|
| Derivatives, Fair Value [Line Items] | |
| Aggregate fair value - net liabilities | $ 78 |
| Collateral posted | 1 |
|
Downgrade One Level from Current Ratings [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Derivatives in net liability position additional collateral | 6 |
|
Downgrade to Below Investment Grade from Current Ratings [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Derivatives in net liability position additional collateral | 105 |
|
CECONY [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Aggregate fair value - net liabilities | 58 |
|
CECONY [Member] | Downgrade One Level from Current Ratings [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Derivatives in net liability position additional collateral | 2 |
|
CECONY [Member] | Downgrade to Below Investment Grade from Current Ratings [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Derivatives in net liability position additional collateral | $ 63 |
| X | ||||||||||
|
- Definition
The aggregate fair value of additional assets that would be required to be posted as collateral for derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fair value of credit risk derivative asset after deduction of credit risk derivative liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Derivative Instruments and Hedging Activities - Aggregate Fair Value of Companies' Derivative Instruments with Credit-Risk-Related Contingent Features (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
|---|---|
| Derivatives, Fair Value [Line Items] | |
| Collateral posted | $ 1 |
|
Downgrade to Below Investment Grade from Current Ratings [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Derivatives in net asset position additional collateral | 15 |
|
Additional Collateral Required Due To Loss Of Unsecured Credit [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Collateral posted | 16 |
|
Additional Collateral Required Due To Loss Of Unsecured Credit [Member] | CECONY [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Collateral posted | $ 3 |
| X | ||||||||||
|
- Definition
The additional collateral that would be required for derivative instruments that are net assets. No definition available.
|
| X | ||||||||||
|
- Definition
The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | $ 361 | $ 336 |
| Total liabilities | 78 | 17 |
|
CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | 299 | 262 |
| Total liabilities | 58 | 14 |
|
Level 1 [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | 166 | 144 |
| Total liabilities | 18 | 5 |
|
Level 1 [Member] | CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | 156 | 137 |
| Total liabilities | 16 | 5 |
|
Level 2 [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | 194 | 243 |
| Total liabilities | 246 | 86 |
|
Level 2 [Member] | CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | 109 | 116 |
| Total liabilities | 91 | 27 |
|
Level 3 [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | 28 | 11 |
| Total liabilities | 8 | 2 |
|
Level 3 [Member] | CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | 13 | 6 |
|
Commodity [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 82 | 82 |
| Derivative liabilities | 78 | 15 |
|
Commodity [Member] | CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 38 | 25 |
| Derivative liabilities | 58 | 14 |
|
Commodity [Member] | Level 1 [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 3 | 3 |
| Derivative liabilities | 18 | 5 |
|
Commodity [Member] | Level 1 [Member] | CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 1 | 3 |
| Derivative liabilities | 16 | 5 |
|
Commodity [Member] | Level 2 [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 78 | 130 |
| Derivative liabilities | 246 | 84 |
|
Commodity [Member] | Level 2 [Member] | CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 3 | 13 |
| Derivative liabilities | 91 | 27 |
|
Commodity [Member] | Level 3 [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 28 | 11 |
| Derivative liabilities | 8 | 2 |
|
Commodity [Member] | Level 3 [Member] | CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 13 | 6 |
|
Other [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 279 | 254 |
|
Other [Member] | CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 261 | 237 |
|
Other [Member] | Level 1 [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 163 | 141 |
|
Other [Member] | Level 1 [Member] | CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 155 | 134 |
|
Other [Member] | Level 2 [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 116 | 113 |
|
Other [Member] | Level 2 [Member] | CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 106 | 103 |
|
Interest Rate Contract [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | 2 | |
|
Interest Rate Contract [Member] | Level 2 [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | 2 | |
|
Netting Adjustments [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | (27) | (62) |
| Total liabilities | (194) | (76) |
|
Netting Adjustments [Member] | CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | 21 | 3 |
| Total liabilities | (49) | (18) |
|
Netting Adjustments [Member] | Commodity [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | (27) | (62) |
| Derivative liabilities | (194) | (76) |
|
Netting Adjustments [Member] | Commodity [Member] | CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 21 | 3 |
| Derivative liabilities | $ (49) | $ (18) |
| X | ||||||||||
|
- Definition
Derivative Assets Commodity Total No definition available.
|
| X | ||||||||||
|
- Definition
Derivative Liabilities Commodity Total No definition available.
|
| X | ||||||||||
|
- Definition
Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Parenthetical) (Detail) (USD $)
|
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|
| Fair Value Disclosures [Abstract] | ||
| Transfers between levels 1,2 and 3 | $ 0 | $ 0 |
| X | ||||||||||
|
- Definition
Fair value transfers between levels amount. No definition available.
|
| X | ||||||||||
|
- Details
|
|
Fair Value Measurements - Schedule of Commodity Derivatives (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 31, 2014
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Valuation Techniques | Discounted Cash Flow |
|
Electricity [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Valuation Techniques | Discounted Cash Flow |
|
Natural Gas [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Valuation Techniques | Discounted Cash Flow |
|
Transmission Congestion Contracts / Financial Transmission Rights [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Valuation Techniques | Discounted Cash Flow |
|
Minimum [Member] | Discount to Adjust Auction Prices for Inter-Zonal Forward Price Curves [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range in percentage | 9.60% |
|
Minimum [Member] | Discount to Adjust Auction Prices for Historical Monthly Realized Settlements [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range in percentage | 32.30% |
|
Minimum [Member] | Inter-Zonal Forward Price Curves Adjusted for Historical Zonal Losses [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range | (2.66) |
|
Minimum [Member] | Forward Energy Prices [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range | 22.59 |
|
Minimum [Member] | Forward Capacity Prices [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range | 1.00 |
|
Minimum [Member] | Forward Gas Prices [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range | (1.64) |
|
Maximum [Member] | Discount to Adjust Auction Prices for Inter-Zonal Forward Price Curves [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range in percentage | 57.90% |
|
Maximum [Member] | Discount to Adjust Auction Prices for Historical Monthly Realized Settlements [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range in percentage | 56.10% |
|
Maximum [Member] | Inter-Zonal Forward Price Curves Adjusted for Historical Zonal Losses [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range | 16.49 |
|
Maximum [Member] | Forward Energy Prices [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range | 120 |
|
Maximum [Member] | Forward Capacity Prices [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range | 8.80 |
|
Maximum [Member] | Forward Gas Prices [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range | 5.00 |
|
Level 3 [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Fair Value of commodity derivatives | $ 20 |
|
Level 3 [Member] | Electricity [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Fair Value of commodity derivatives | 1 |
|
Level 3 [Member] | Natural Gas [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Fair Value of commodity derivatives | 2 |
|
Level 3 [Member] | Transmission Congestion Contracts / Financial Transmission Rights [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Fair Value of commodity derivatives | 17 |
|
CECONY [Member] | Transmission Congestion Contracts [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Valuation Techniques | Discounted Cash Flow |
|
CECONY [Member] | Minimum [Member] | Discount to Adjust Auction Prices for Inter-Zonal Forward Price Curves [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range in percentage | 9.60% |
|
CECONY [Member] | Minimum [Member] | Discount to Adjust Auction Prices for Historical Monthly Realized Settlements [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range in percentage | 32.30% |
|
CECONY [Member] | Maximum [Member] | Discount to Adjust Auction Prices for Inter-Zonal Forward Price Curves [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range in percentage | 57.90% |
|
CECONY [Member] | Maximum [Member] | Discount to Adjust Auction Prices for Historical Monthly Realized Settlements [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range in percentage | 56.10% |
|
CECONY [Member] | Level 3 [Member] | Transmission Congestion Contracts [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Fair Value of commodity derivatives | $ 13 |
| X | ||||||||||
|
- Definition
Commodity Contracts Derivatives Fair Value No definition available.
|
| X | ||||||||||
|
- Definition
Fair Value Measurements With Unobservable Inputs Reconciliation Recurring Basis Asset Foreign Exchange Gains Losses No definition available.
|
| X | ||||||||||
|
- Definition
Fair Value Measurement With Unobservable Inputs Range No definition available.
|
| X | ||||||||||
|
- Definition
Fair Value Measurement With Unobservable Inputs Reconciliation Price No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Description of the inputs and valuation technique(s) used to measure fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Fair Value Measurements - Reconciliation of Beginning and Ending Net Balances for Assets and Liabilities Measured at Level 3 Fair Value (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Beginning Balance | $ 9 | $ (5) |
| Included in Earnings | 30 | 7 |
| Included in Regulatory Assets and Liabilities | 7 | 18 |
| Purchases | 22 | 17 |
| Settlements | (48) | (28) |
| Ending Balance | 20 | 9 |
|
CECONY [Member]
|
||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Beginning Balance | 6 | 10 |
| Included in Earnings | 2 | 7 |
| Included in Regulatory Assets and Liabilities | 7 | (1) |
| Purchases | 16 | 13 |
| Settlements | (18) | (23) |
| Ending Balance | $ 13 | $ 6 |
| X | ||||||||||
|
- Definition
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Included In regulatory Assets And Liabilities No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of gain (loss) recognized in the income statement for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of settlement of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Fair Value Measurements - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|
|
Non-utility Revenues [Member]
|
||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Fair value, assets measured on recurring basis, change in unrealized gain (loss) | $ (2) | |
|
Purchased Power Costs [Member]
|
||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Fair value, assets measured on recurring basis, change in unrealized gain (loss) | 2 | 3 |
|
Competitive Energy Businesses [Member] | Non-utility Revenues [Member]
|
||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Gain (loss) on Level 3 energy derivative liabilities | (2) | |
|
Competitive Energy Businesses [Member] | Purchased Power Costs [Member]
|
||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Gain (loss) on Level 3 energy derivative liabilities | $ 27 | $ 5 |
| X | ||||||||||
|
- Definition
Amount of unrealized (holding) gain (loss) which is included in the statement of income (or changes in net assets) related to those assets still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of gain (loss) recognized on the income statement for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Variable Interest Entities - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 31, 2014
|
|
| Variable Interest Entity [Line Items] | |
| Net proceeds on sale | $ 108 |
| Gain on sale, pretax | 45 |
| Non controlling interest of third party | 9 |
|
Noncontrolling Interest [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Non controlling interest of third party | 9 |
|
Variable Interest Entity, Not Primary Beneficiary [Member] | Copper Mountain Solar 3 [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Percentage of variable interests | 50.00% |
|
Variable Interest Entity, Not Primary Beneficiary [Member] | California Solar [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Percentage of variable interests | 50.00% |
|
Variable Interest Entity, Not Primary Beneficiary [Member] | Broken Bow II [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Percentage of variable interests | 50.00% |
|
Variable Interest Entity, Not Primary Beneficiary [Member] | Nevada [Member] | Copper Mountain Solar 3 [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Generating capacity | 250 |
|
Variable Interest Entity, Not Primary Beneficiary [Member] | Nebraska [Member] | Broken Bow II [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Generating capacity | 75 |
|
Variable Interest Entity, Primary Beneficiary [Member] | Texas Solar 4 [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Percentage of variable interests | 80.00% |
| Purchase of membership interest, amount | 49 |
| Net assets | 58 |
|
Variable Interest Entity, Primary Beneficiary [Member] | Texas Solar 4 [Member] | Noncontrolling Interest [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Non controlling interest of third party | 9 |
|
Variable Interest Entity, Primary Beneficiary [Member] | Texas [Member] | Texas Solar 4 [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Generating capacity | 40 |
|
California Solar [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Percentage of variable interests sold | 50.00% |
| Net proceeds on sale | 108 |
| Gain on sale, pretax | 45 |
| Gain on sale, net of tax | $ 26 |
|
California Solar [Member] | California [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Generating capacity | 110 |
|
CECONY [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Number of potential VIEs, long-term electricity purchase agreements | 3 |
| X | ||||||||||
|
- Definition
Gain Loss On Investments Net Of Tax No definition available.
|
| X | ||||||||||
|
- Definition
Generating Capacity No definition available.
|
| X | ||||||||||
|
- Definition
Number of potential variable interest entities. No definition available.
|
| X | ||||||||||
|
- Definition
Percentage Of Membership Interests Sold No definition available.
|
| X | ||||||||||
|
- Definition
The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale. No definition available.
|
| X | ||||||||||
|
- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow associated with the deconsolidation of a previously consolidated subsidiary or the sale of investment in consolidated subsidiaries (generally greater than 50 percent). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net carrying amount of the consolidated Variable Interest Entity's assets and liabilities included in the reporting entity's statement of financial position. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Variable Interest Entities - Schedule of Sale and Deconsolidation of a Variable Interest Entity (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|
| Variable Interest Entity [Line Items] | ||
| Proceeds from sale, net of transaction costs of $1 | $ 108 | |
| Non-utility property, less accumulated depreciation | (388) | (605) |
| Long-term debt, including current portion | 12,191 | 10,974 |
| Gain on sale of solar electric production projects | (45) | |
|
California Solar [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Proceeds from sale, net of transaction costs of $1 | 108 | |
| Non-utility property, less accumulated depreciation | (341) | |
| Other assets, including working capital | (31) | |
| Long-term debt, including current portion | 217 | |
| Other liabilities | 9 | |
| Gain on sale of solar electric production projects | (45) | |
| Equity method investment upon deconsolidation | $ (83) |
| X | ||||||||||
|
- Definition
Tangible assets that are held by an entity for use other than utility production; net of accumulated depreciation. No definition available.
|
| X | ||||||||||
|
- Definition
This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale. No definition available.
|
| X | ||||||||||
|
- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate carrying amounts, as of the balance sheet date, of assets not separately disclosed in the balance sheet. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate carrying amount, as of the balance sheet date, of liabilities not separately disclosed in the balance sheet. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow associated with the deconsolidation of a previously consolidated subsidiary or the sale of investment in consolidated subsidiaries (generally greater than 50 percent). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Variable Interest Entities - Schedule of Sale and Deconsolidation of a Variable Interest Entity (Parenthetical) (Detail) (California Solar [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 31, 2014
|
|
|
California Solar [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Transaction costs | $ 1 |
| X | ||||||||||
|
- Definition
Transaction Costs No definition available.
|
| X | ||||||||||
|
- Details
|
|
Variable Interest Entities - Schedule of Assets and Liabilities Included in Consolidated Balance Sheet (Detail) (Variable Interest Entity, Primary Beneficiary [Member], Texas Solar 4 [Member], USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
|---|---|
| Variable Interest Entity [Line Items] | |
| Assets | $ 135 |
| Liabilities | 77 |
|
Restricted Cash [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Assets | 13 |
|
Non-utility Property, less Accumulated Depreciation [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Assets | 108 |
|
Other Assets [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Assets | 14 |
|
Long-term Debt Due within One Year [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Liabilities | 66 |
|
Other Liabilities [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Liabilities | $ 11 |
| X | ||||||||||
|
- Definition
The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Variable Interest Entities - Summary of VIEs (Detail) (USD $)
|
12 Months Ended |
|---|---|
|
Dec. 31, 2014
MW
|
|
|
Variable Interest Entity, Not Primary Beneficiary [Member] | Pilesgrove [Member] | New Jersey [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Generating Capacity Owned | 9 |
| Year of Initial Investment | 2010 |
| Maximum Exposure to Loss (In Millions) | $ 26,000,000 |
|
Variable Interest Entity, Not Primary Beneficiary [Member] | Mesquite Solar 1 [Member] | Arizona [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Generating Capacity Owned | 83 |
| Power Purchase Agreement Term in Years | 20 years |
| Year of Initial Investment | 2013 |
| Maximum Exposure to Loss (In Millions) | 111,000,000 |
|
Variable Interest Entity, Not Primary Beneficiary [Member] | Copper Mountain Solar 2 [Member] | Nevada [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Generating Capacity Owned | 75 |
| Power Purchase Agreement Term in Years | 25 years |
| Year of Initial Investment | 2013 |
| Maximum Exposure to Loss (In Millions) | 80,000,000 |
|
Variable Interest Entity, Not Primary Beneficiary [Member] | Copper Mountain Solar 3 [Member] | Nevada [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Generating Capacity Owned | 128 |
| Power Purchase Agreement Term in Years | 20 years |
| Year of Initial Investment | 2014 |
| Maximum Exposure to Loss (In Millions) | 175,000,000 |
|
Variable Interest Entity, Not Primary Beneficiary [Member] | California Solar [Member] | California [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Generating Capacity Owned | 55 |
| Power Purchase Agreement Term in Years | 25 years |
| Year of Initial Investment | 2012 |
| Maximum Exposure to Loss (In Millions) | 81,000,000 |
|
Variable Interest Entity, Not Primary Beneficiary [Member] | Broken Bow II [Member] | Nebraska [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Generating Capacity Owned | 37 |
| Power Purchase Agreement Term in Years | 25 years |
| Year of Initial Investment | 2014 |
| Maximum Exposure to Loss (In Millions) | 57,000,000 |
|
Variable Interest Entity, Primary Beneficiary [Member] | Texas Solar 4 [Member] | Texas [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Generating Capacity Owned | 32 |
| Power Purchase Agreement Term in Years | 25 years |
| Year of Initial Investment | 2014 |
| Maximum Exposure to Loss (In Millions) | $ 58,000,000 |
| X | ||||||||||
|
- Definition
Generating capacity of plant owned thru equity method investment in entity. No definition available.
|
| X | ||||||||||
|
- Definition
Variable interest entity initial investment year. No definition available.
|
| X | ||||||||||
|
- Definition
Period covered by the long-term purchase commitment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
|
| X | ||||||||||
|
- Definition
The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Variable Interest Entities - Summary of VIEs (Parenthetical) (Detail)
|
12 Months Ended |
|---|---|
|
Dec. 31, 2014
|
|
|
Variable Interest Entity, Primary Beneficiary [Member] | Texas Solar 4 [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Percentage of variable interests | 80.00% |
|
Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Percentage of variable interests | 50.00% |
|
Minimum [Member] | Solar Renewable Energy Credit Hedge [Member] | Pilesgrove [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Renewable Energy Credit | 3 years |
|
Maximum [Member] | Solar Renewable Energy Credit Hedge [Member] | Pilesgrove [Member]
|
|
| Variable Interest Entity [Line Items] | |
| Renewable Energy Credit | 5 years |
| X | ||||||||||
|
- Definition
Renewable energy credit. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Asset Retirement Obligations - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|
| Regulatory Liabilities [Line Items] | ||
| Accrued liability - asset retirement obligations | $ 188 | $ 143 |
| Increase in liabilities for asset retirement obligations due to changes in estimated cash flows | 60 | |
| Asset retirement obligations, accretion expense | 6 | |
| Asset retirement obligations, liabilities settled | 21 | |
| Asset retirement obligations, reductions | 16 | 17 |
|
CECONY [Member]
|
||
| Regulatory Liabilities [Line Items] | ||
| Accrued liability - asset retirement obligations | 185 | 143 |
| Increase in liabilities for asset retirement obligations due to changes in estimated cash flows | 57 | |
| Asset retirement obligations, accretion expense | 6 | |
| Asset retirement obligations, liabilities settled | 21 | |
| Asset retirement obligations, reductions | $ 16 | $ 17 |
| X | ||||||||||
|
- Definition
Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Net Increase or Decrease in the asset retirement obligation during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of the Increase or Decrease in the amount of the asset retirement obligation during the current period for changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Related Party Transactions - Summary of Costs of Administrative and Other Services Provided and Received (Detail) (CECONY [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
|
CECONY [Member]
|
|||
| Related Party Transaction [Line Items] | |||
| Cost of services provided | $ 90 | $ 84 | $ 83 |
| Cost of services received | $ 57 | $ 52 | $ 49 |
| X | ||||||||||
|
- Definition
Cost of services received. No definition available.
|
| X | ||||||||||
|
- Definition
Total costs related to services rendered by an entity during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Related Party Transactions - Additional Information (Detail) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
|
CECONY [Member]
|
|||
| Related Party Transaction [Line Items] | |||
| Sale of natural gas | $ 80,000,000 | $ 72,000,000 | $ 54,000,000 |
| Funding limit of CECONY to O&R | 250,000,000 | ||
|
O&R [Member]
|
|||
| Related Party Transaction [Line Items] | |||
| Outstanding loans to O&R | $ 0 | $ 0 | |
| X | ||||||||||
|
- Definition
Maximum Amount Of Funding No definition available.
|
| X | ||||||||||
|
- Definition
Outstanding Loan No definition available.
|
| X | ||||||||||
|
- Definition
Sales Of Natural Gas Propane Ngls And Condensate And Affiliates No definition available.
|
| X | ||||||||||
|
- Details
|
|
Schedule I - Condensed Financial Information - Condensed Statement of Income and Comprehensive Income (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Schedule Of Condensed Consolidating Statement Of Operation [Line Items] | |||
| Interest expense | $ (591) | $ (719) | $ (604) |
| NET INCOME FOR COMMON STOCK | 1,092 | 1,062 | 1,138 |
| Comprehensive Income for Common Stock | 1,072 | 1,090 | 1,143 |
| Net Income Per Common Share - Basic | $ 3.73 | $ 3.62 | $ 3.88 |
| Net Income Per Common Share - Diluted | $ 3.71 | $ 3.61 | $ 3.86 |
| DIVIDENDS DECLARED PER SHARE OF COMMON STOCK | $ 2.52 | $ 2.46 | $ 2.42 |
| Average Number Of Shares Outstanding-Basic | 292.9 | 292.9 | 292.9 |
| Average Number Of Shares Outstanding-Diluted | 294.0 | 294.4 | 294.5 |
|
Consolidated Edison Inc [Member]
|
|||
| Schedule Of Condensed Consolidating Statement Of Operation [Line Items] | |||
| Equity in earnings of subsidiaries | 1,101 | 1,062 | 1,154 |
| Other income (deductions), net of taxes | 19 | 29 | 12 |
| Interest expense | (28) | (29) | (28) |
| NET INCOME FOR COMMON STOCK | 1,092 | 1,062 | 1,138 |
| Comprehensive Income for Common Stock | $ 1,072 | $ 1,090 | $ 1,143 |
| Net Income Per Common Share - Basic | $ 3.73 | $ 3.62 | $ 3.88 |
| Net Income Per Common Share - Diluted | $ 3.71 | $ 3.61 | $ 3.86 |
| DIVIDENDS DECLARED PER SHARE OF COMMON STOCK | $ 2.52 | $ 2.46 | $ 2.42 |
| Average Number Of Shares Outstanding-Basic | 292.9 | 292.9 | 292.9 |
| Average Number Of Shares Outstanding-Diluted | 294.0 | 294.4 | 294.5 |
| X | ||||||||||
|
- Definition
Comprehensive Income Available to Common Stockholders, Net of Tax No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after tax of income (loss) of subsidiary attributable to the parent entity. No definition available.
|
| X | ||||||||||
|
- Definition
Interest and debt related expenses associated with nonoperating financing activities of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net amount of other income and expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) net gains or losses on securities, (d) unusual costs, (e) gains or losses on foreign exchange transactions, and (f) miscellaneous other income and expense items. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Schedule I - Condensed Financial Information - Condensed Statement of Cash Flows (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Condensed Cash Flow Statements, Captions [Line Items] | |||
| Net Income | $ 1,092 | $ 1,062 | $ 1,138 |
| Common stock dividends | 739 | 721 | 709 |
| Change in Assets: | |||
| Special deposits | 312 | (257) | (13) |
| Income taxes receivable | (224) | ||
| Other - net | 4 | 34 | 40 |
| Net Cash Flows from Operating Activities | 2,831 | 2,552 | 2,599 |
| INVESTING ACTIVITIES | |||
| Net Cash Flows Used in Investing Activities | (2,759) | (2,659) | (2,523) |
| FINANCING ACTIVITIES | |||
| Net proceeds of short-term debt | (651) | 912 | 539 |
| Retirement of long-term debt | (480) | (709) | (305) |
| Common stock dividends | 739 | 721 | 709 |
| NET CASH FLOWS (USED IN)/FROM FINANCING ACTIVITIES | (47) | 387 | (330) |
| NET CHANGE FOR THE PERIOD | 25 | 280 | (254) |
| BALANCE AT BEGINNING OF PERIOD | 674 | 394 | 648 |
| BALANCE AT END OF PERIOD | 699 | 674 | 394 |
|
Consolidated Edison Inc [Member]
|
|||
| Condensed Cash Flow Statements, Captions [Line Items] | |||
| Net Income | 1,092 | 1,062 | 1,138 |
| Common stock dividends | (739) | (721) | (709) |
| Equity in earnings of subsidiaries | (1,101) | (1,062) | (1,154) |
| Change in Assets: | |||
| Special deposits | 314 | (264) | |
| Income taxes receivable | (224) | ||
| Other - net | (199) | 166 | (208) |
| Net Cash Flows from Operating Activities | 642 | 680 | 503 |
| INVESTING ACTIVITIES | |||
| Contributions to subsidiaries | (1) | (100) | |
| Net Cash Flows Used in Investing Activities | (1) | (100) | |
| FINANCING ACTIVITIES | |||
| Net proceeds of short-term debt | 101 | 58 | 115 |
| Retirement of long-term debt | (2) | (1) | (1) |
| Issuance of common shares for stock plans, net of repurchases | (10) | (8) | (9) |
| Common stock dividends | (739) | (721) | (709) |
| NET CASH FLOWS (USED IN)/FROM FINANCING ACTIVITIES | (650) | (672) | (604) |
| NET CHANGE FOR THE PERIOD | (9) | 8 | (201) |
| BALANCE AT BEGINNING OF PERIOD | 12 | 4 | 205 |
| BALANCE AT END OF PERIOD | 3 | 12 | 4 |
|
CECONY [Member]
|
|||
| Condensed Cash Flow Statements, Captions [Line Items] | |||
| Net Income | 1,058 | 1,020 | 1,014 |
| Change in Assets: | |||
| Other - net | 35 | (88) | (40) |
| Net Cash Flows from Operating Activities | 2,430 | 2,643 | 2,346 |
| INVESTING ACTIVITIES | |||
| Net Cash Flows Used in Investing Activities | (2,304) | (2,417) | (1,958) |
| FINANCING ACTIVITIES | |||
| Net proceeds of short-term debt | (760) | 789 | 421 |
| Retirement of long-term debt | (475) | (700) | (300) |
| NET CASH FLOWS (USED IN)/FROM FINANCING ACTIVITIES | (114) | 54 | (407) |
| NET CHANGE FOR THE PERIOD | 12 | 280 | (19) |
| BALANCE AT BEGINNING OF PERIOD | 633 | 353 | 372 |
| BALANCE AT END OF PERIOD | 645 | 633 | 353 |
|
CECONY [Member] | Consolidated Edison Inc [Member]
|
|||
| Condensed Cash Flow Statements, Captions [Line Items] | |||
| Common stock dividends | 712 | 728 | 682 |
| FINANCING ACTIVITIES | |||
| Common stock dividends | 712 | 728 | 682 |
|
O&R [Member] | Consolidated Edison Inc [Member]
|
|||
| Condensed Cash Flow Statements, Captions [Line Items] | |||
| Common stock dividends | 40 | 38 | 34 |
| FINANCING ACTIVITIES | |||
| Common stock dividends | 40 | 38 | 34 |
|
Competitive Energy Businesses [Member] | Consolidated Edison Inc [Member]
|
|||
| Condensed Cash Flow Statements, Captions [Line Items] | |||
| Common stock dividends | 8 | 12 | 11 |
| FINANCING ACTIVITIES | |||
| Common stock dividends | $ 8 | $ 12 | $ 11 |
| X | ||||||||||
|
- Definition
Equity in earnings of subsidiaries No definition available.
|
| X | ||||||||||
|
- Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The net cash inflow or outflow for the increase (decrease) in the beginning and end of period deposits balances. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in income taxes receivable, which represents the amount due from tax authorities for refunds of overpayments or recoveries of income taxes paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in other amounts due to the reporting entity, which are not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of cash inflow (outflow) of financing activities, excluding discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from parent as a source of financing that is recorded as additional paid in capital. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from the additional capital contribution to the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net cash inflow or outflow for borrowing having initial term of repayment within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Schedule I - Condensed Financial Information - Condensed Balance Sheet (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|---|---|
| CURRENT ASSETS | ||||
| Cash and temporary cash investments | $ 699 | $ 674 | $ 394 | $ 648 |
| Special deposits | 8 | 327 | ||
| Accounts receivable - other | 1,201 | 1,251 | ||
| Income taxes receivable | 224 | |||
| Prepayments | 163 | 136 | ||
| Other current assets | 278 | 235 | ||
| TOTAL CURRENT ASSETS | 3,854 | 3,891 | ||
| Investments in subsidiaries and others | 816 | 461 | ||
| Goodwill | 429 | 429 | ||
| Other noncurrent assets | 9,811 | 7,859 | ||
| TOTAL ASSETS | 44,308 | 40,647 | 41,209 | |
| CURRENT LIABILITIES | ||||
| Long-term debt due within one year | 560 | 485 | ||
| Notes payable | 800 | 1,451 | ||
| Accrued taxes | 72 | 476 | ||
| Other current liabilities | 508 | 478 | ||
| TOTAL CURRENT LIABILITIES | 3,781 | 4,730 | ||
| LONG-TERM DEBT | 11,631 | 10,489 | ||
| Shareholders' Equity | ||||
| Common Shareholders' Equity | 12,576 | 12,245 | ||
| TOTAL LIABILITIES AND SHAREHOLDER'S EQUITY | 44,308 | 40,647 | ||
|
Consolidated Edison Inc [Member]
|
||||
| CURRENT ASSETS | ||||
| Cash and temporary cash investments | 3 | 12 | 4 | 205 |
| Special deposits | 1 | 315 | ||
| Accounts receivable - other | 185 | |||
| Income taxes receivable | 224 | |||
| Accounts receivable from affiliated companies | 381 | 950 | ||
| Prepayments | 5 | 2 | ||
| Other current assets | 4 | |||
| TOTAL CURRENT ASSETS | 618 | 1,464 | ||
| Investments in subsidiaries and others | 12,277 | 11,954 | ||
| Goodwill | 406 | 406 | ||
| Deferred income tax | 18 | 14 | ||
| Other noncurrent assets | 11 | 4 | ||
| TOTAL ASSETS | 13,330 | 13,842 | ||
| CURRENT LIABILITIES | ||||
| Long-term debt due within one year | 2 | 2 | ||
| Notes payable | 274 | 173 | ||
| Accounts payable to affiliated companies | 147 | 148 | ||
| Accrued taxes | 13 | 426 | ||
| Other current liabilities | 10 | 538 | ||
| TOTAL CURRENT LIABILITIES | 446 | 1,287 | ||
| Total Liabilities | 446 | 1,287 | ||
| LONG-TERM DEBT | 308 | 310 | ||
| Shareholders' Equity | ||||
| Common stock, including additional paid-in capital | 5,023 | 5,027 | ||
| Retained earnings | 7,553 | 7,218 | ||
| Common Shareholders' Equity | 12,576 | 12,245 | ||
| TOTAL LIABILITIES AND SHAREHOLDER'S EQUITY | $ 13,330 | $ 13,842 |
| X | ||||||||||
|
- Definition
Total value of common stock equity No definition available.
|
| X | ||||||||||
|
- Definition
Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment within one year or during the operating cycle, if shorter. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership, due within 1 year (or 1 business cycle). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate carrying amount, as of the balance sheet date, of current assets not separately disclosed in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate carrying amount of current liabilities (due within one year or within the normal operating cycle if longer) not separately disclosed in the balance sheet. Includes costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered and of liabilities not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Schedule II - Valuation and Qualifying Accounts - Valuation and Qualifying Accounts (Detail) (Allowance For Uncollectible Accounts [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Valuation and Qualifying Accounts Disclosure [Line Items] | |||
| Balance at Beginning of Period | $ 103 | $ 105 | $ 97 |
| Charged To Costs And Expenses | 98 | 86 | 96 |
| Charged To Other Accounts | 0 | 0 | 0 |
| Deductions | 95 | 88 | 88 |
| Balance At End of Period | 106 | 103 | 105 |
|
CECONY [Member]
|
|||
| Valuation and Qualifying Accounts Disclosure [Line Items] | |||
| Balance at Beginning of Period | 95 | 96 | 88 |
| Charged To Costs And Expenses | 91 | 82 | 90 |
| Charged To Other Accounts | 0 | 0 | 0 |
| Deductions | 88 | 83 | 82 |
| Balance At End of Period | $ 98 | $ 95 | $ 96 |
| X | ||||||||||
|
- Definition
Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to costs and expenses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to accounts other than costs and expenses in a given period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|