| 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
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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| NET INCOME | $ 1,062 | $ 1,141 | $ 1,062 |
| OTHER COMPREHENSIVE INCOME/(LOSS), NET OF TAXES | |||
| Pension plan liability adjustments, net | 28 | 5 | (18) |
| TOTAL OTHER COMPREHENSIVE INCOME/(LOSS), NET OF TAXES | 28 | 5 | (18) |
| COMPREHENSIVE INCOME | 1,090 | 1,146 | 1,044 |
| Cumulative preferred dividends | (3) | (11) | |
| COMPREHENSIVE INCOME FOR COMMON STOCK | 1,090 | 1,143 | 1,033 |
|
CECONY [Member]
|
|||
| NET INCOME | 1,020 | 1,017 | 989 |
| OTHER COMPREHENSIVE INCOME/(LOSS), NET OF TAXES | |||
| Pension plan liability adjustments, net | 3 | (1) | (2) |
| TOTAL OTHER COMPREHENSIVE INCOME/(LOSS), NET OF TAXES | 3 | (1) | (2) |
| COMPREHENSIVE INCOME | 1,023 | 1,016 | 987 |
| Cumulative preferred dividends | $ (3) | $ (11) | |
| 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
|
|
Consolidated Statement of Comprehensive Income (Parenthetical) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Pension plan liability adjustments, taxes | $ 20 | $ 4 | $ (12) |
|
CECONY [Member]
|
|||
| Pension plan liability adjustments, taxes | $ 2 | $ (1) | $ (1) |
| X | ||||||||||
|
- Definition
Amount of tax (expense) benefit, after 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
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 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 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 assets used in operating activities not separately disclosed in the statement of cash flows. May include changes in other current assets, other noncurrent assets, or a combination of other current and noncurrent assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| 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) from financing activities, including 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) from investing activities, including 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, including 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 | ||||||||||
|
- 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 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 cash inflow from a 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
The cash outflow for a 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 value of common stock equity No definition available.
|
| 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
Total Other Assets 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 equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| 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
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
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
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
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 | ||||||||||
|
- 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
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, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Accounts receivable - customers, allowance for uncollectible accounts | $ 93 | $ 94 |
| Other receivables, allowance for uncollectible accounts | 10 | 10 |
| Non-utility property, accumulated depreciation | 90 | 68 |
| Intangible assets, accumulated amortization | 4 | 4 |
|
CECONY [Member]
|
||
| Accounts receivable - customers, allowance for uncollectible accounts | 87 | 87 |
| Other receivables, allowance for uncollectible accounts | 8 | 9 |
| Non-utility property, accumulated depreciation | $ 25 | $ 25 |
| X | ||||||||||
|
- Definition
A provision for other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. No definition available.
|
| 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
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]
|
Repurchased Con Edison Stock [Member]
CECONY [Member]
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BALANCE at Dec. 31, 2010 | $ 11,061 | $ 9,923 | $ 31 | $ 589 | $ 4,915 | $ 4,234 | $ 7,220 | $ 6,132 | $ (1,001) | $ (64) | $ (64) | $ (40) | $ (6) | $ (962) |
| BALANCE (In Shares) at Dec. 31, 2010 | 291,616,334 | 235,488,094 | 23,210,700 | |||||||||||
| Net income for common stock | 1,051 | 978 | 1,051 | |||||||||||
| NET INCOME | 1,062 | 989 | 989 | |||||||||||
| Common stock dividend to parent | (703) | (681) | (703) | (681) | ||||||||||
| Issuance of common shares - dividend reinvestment and employee stock plans | 132 | 1 | 76 | 55 | ||||||||||
| Cumulative preferred dividends | (11) | (11) | (11) | |||||||||||
| Issuance of common shares - dividend reinvestment and employee stock plans (In Shares) | 1,272,187 | (1,538,166) | ||||||||||||
| Common stock repurchases | (87) | (87) | ||||||||||||
| Common stock repurchases (In Shares) | 1,521,541 | |||||||||||||
| Other comprehensive income | (18) | (2) | (18) | (2) | ||||||||||
| BALANCE at Dec. 31, 2011 | 11,436 | 10,218 | 32 | 589 | 4,991 | 4,234 | 7,568 | 6,429 | (1,033) | (64) | (64) | (58) | (8) | (962) |
| 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 dividend to parent | (709) | (682) | (709) | (682) | ||||||||||
| Issuance of common shares - dividend reinvestment and employee stock plans | (1) | (4) | 3 | |||||||||||
| Cumulative preferred dividends | (3) | (3) | (3) | |||||||||||
| Issuance of common shares - dividend reinvestment and employee stock plans (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 | 10,552 | 32 | 589 | 4,991 | 4,234 | 7,997 | 6,761 | (1,037) | (61) | (61) | (53) | (9) | (962) |
| BALANCE (In Shares) at Dec. 31, 2012 | 292,871,896 | 235,488,094 | 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 dividend to parent | (721) | (728) | (721) | (728) | ||||||||||
| Issuance of common shares - dividend reinvestment and employee stock plans | 7 | 4 | 3 | |||||||||||
| Issuance of common shares - dividend reinvestment and employee stock plans (In Shares) | 500 | (500) | ||||||||||||
| Other comprehensive income | 28 | 3 | 28 | 3 | ||||||||||
| BALANCE at Dec. 31, 2013 | $ 12,245 | $ 10,847 | $ 32 | $ 589 | $ 4,995 | $ 4,234 | $ 8,338 | $ 7,053 | $ (1,034) | $ (61) | $ (61) | $ (25) | $ (6) | $ (962) |
| BALANCE (In Shares) at Dec. 31, 2013 | 292,872,396 | 235,488,094 | 292,872,396 | 235,488,094 | 23,210,200 |
| X | ||||||||||
|
- Definition
Total value of common stock equity No definition available.
|
| 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
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
Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Consolidated Statement of Capitalization (USD $)
In Millions, except Share data, unless otherwise specified |
Dec. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| TOTAL COMMON SHAREHOLDERS' EQUITY BEFORE ACCUMULATED OTHER COMPREHENSIVE LOSS | $ 12,270 | $ 11,922 |
| TOTAL COMMON SHAREHOLDERS' EQUITY BEFORE ACCUMULATED OTHER COMPREHENSIVE LOSS (in shares) | 292,872,396 | 292,871,896 |
| Pension plan liability adjustments, net of taxes | (22) | (50) |
| 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 | (25) | (53) |
| TOTAL COMMON SHAREHOLDERS' EQUITY (SEE STATEMENT OF COMMON SHAREHOLDER'S EQUITY) | 12,245 | 11,869 |
|
CECONY [Member]
|
||
| TOTAL COMMON SHAREHOLDERS' EQUITY BEFORE ACCUMULATED OTHER COMPREHENSIVE LOSS | 10,853 | 10,561 |
| TOTAL COMMON SHAREHOLDERS' EQUITY BEFORE ACCUMULATED OTHER COMPREHENSIVE LOSS (in shares) | 235,488,094 | 235,488,094 |
| Pension plan liability adjustments, net of taxes | (3) | (6) |
| 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 | (6) | (9) |
| TOTAL COMMON SHAREHOLDERS' EQUITY (SEE STATEMENT OF COMMON SHAREHOLDER'S EQUITY) | $ 10,847 | $ 10,552 |
| 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.
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- Definition
Total value of common stock equity No definition available.
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- Definition
Common stock equity before accumulated comprehensive income loss. No definition available.
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- Definition
Common Stock Equity Shares No definition available.
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- 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
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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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Consolidated Statement of Capitalization (Parenthetical) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
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Dec. 31, 2013
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Dec. 31, 2012
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| Pension plan liability adjustments, tax | $ (10) | $ (30) |
| Unrealized gains/(losses) on derivatives qualified as cash flow hedges, tax and reclassification adjustment | (2) | (2) |
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CECONY [Member]
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| Pension plan liability adjustments, tax | (2) | (4) |
| Unrealized gains/(losses) on derivatives qualified as cash flow hedges, tax and reclassification adjustment | $ (2) | $ (2) |
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- Definition
Pension plan liability adjustments, Tax No definition available.
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- Definition
Unrealized Gains Losses On Derivatives Qualified As Cash Flow Hedges Tax And Reclassification Adjustment No definition available.
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General
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12 Months Ended |
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Dec. 31, 2013
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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 participates in infrastructure projects. |
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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 participates in infrastructure projects. |
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- Definition
Description of Activities of Parent Company No definition available.
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Summary of Significant Accounting Policies
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Dec. 31, 2013
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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 accounting principles generally accepted in the United States of America. 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 public utility regulatory commissions 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 public utility regulatory commission. 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 (AFDC). 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 AFDC 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 AFDC rates for CECONY were 4.0 percent, 6.5 percent and 6.9 percent for 2013, 2012, and 2011, respectively. The AFDC rates for O&R were 5.7 percent, 7.0 percent and 6.6 percent for 2013, 2012, and 2011, 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 rate for CECONY was 3.2 percent for 2013 and 3.1 percent for 2012, and 2011. The average depreciation rates for O&R were 2.8 percent, 2.9 percent and 2.8 percent for 2013, 2012, and 2011, respectively. The estimated lives for utility plant for CECONY range from 5 to 80 years for electric, 5 to 85 years for gas, 5 to 70 years for steam and 5 to 50 years for general plant. For O&R, the estimated lives for utility plant range from 5 to 75 years for electric, 5 to 75 years for gas and 5 to 50 years for general plant. At December 31, 2013 and 2012, 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, 2013 was $948 million, including $897 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 and consists primarily of land, gas storage and solar facilities that are currently not used within electric, gas or steam utility operations. 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 In accordance with the accounting rules for goodwill and intangible assets, Con Edison is required to test goodwill for impairment 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 In accordance with the accounting rules for impairment or disposal of long-lived assets, the Companies evaluate 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 2013, 2012 or 2011. 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. 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 commissions. 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 are generally deferred for charge or refund to customers during the next billing cycle (normally within one or two months). In addition, CECONY recovers the costs of its electric demand management programs, in excess of the costs reflected in rates, as part of recoverable energy costs. 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) or accounted for as leveraged leases in accordance with the accounting rules for leases. See Note J for a discussion of investments in Lease In/Lease Out transactions. Utilities’ investments are recorded at fair value and include the deferred income plan and supplemental retirement income plan 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 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 of the group pays or receives an amount 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 In accordance with the accounting rules for earnings per 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, 2013 and 2012 exclude immaterial amounts of performance share awards which were not included because of their anti-dilutive effect. No such exclusions were required for the computation of diluted EPS for the year ended December 31, 2011. Estimates The preparation of financial statements in conformity with generally accepted accounting principles 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 For 2013, 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 accounting principles generally accepted in the United States of America. 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 public utility regulatory commissions 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 public utility regulatory commission. 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 (AFDC). 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 AFDC 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 AFDC rates for CECONY were 4.0 percent, 6.5 percent and 6.9 percent for 2013, 2012, and 2011, respectively. The AFDC rates for O&R were 5.7 percent, 7.0 percent and 6.6 percent for 2013, 2012, and 2011, 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 rate for CECONY was 3.2 percent for 2013 and 3.1 percent for 2012, and 2011. The average depreciation rates for O&R were 2.8 percent, 2.9 percent and 2.8 percent for 2013, 2012, and 2011, respectively. The estimated lives for utility plant for CECONY range from 5 to 80 years for electric, 5 to 85 years for gas, 5 to 70 years for steam and 5 to 50 years for general plant. For O&R, the estimated lives for utility plant range from 5 to 75 years for electric, 5 to 75 years for gas and 5 to 50 years for general plant. At December 31, 2013 and 2012, 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, 2013 was $948 million, including $897 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 and consists primarily of land, gas storage and solar facilities that are currently not used within electric, gas or steam utility operations. 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 In accordance with the accounting rules for goodwill and intangible assets, Con Edison is required to test goodwill for impairment 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 In accordance with the accounting rules for impairment or disposal of long-lived assets, the Companies evaluate 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 2013, 2012 or 2011. 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. 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 commissions. 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 are generally deferred for charge or refund to customers during the next billing cycle (normally within one or two months). In addition, CECONY recovers the costs of its electric demand management programs, in excess of the costs reflected in rates, as part of recoverable energy costs. 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) or accounted for as leveraged leases in accordance with the accounting rules for leases. See Note J for a discussion of investments in Lease In/Lease Out transactions. Utilities’ investments are recorded at fair value and include the deferred income plan and supplemental retirement income plan 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 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 of the group pays or receives an amount 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 In accordance with the accounting rules for earnings per 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, 2013 and 2012 exclude immaterial amounts of performance share awards which were not included because of their anti-dilutive effect. No such exclusions were required for the computation of diluted EPS for the year ended December 31, 2011. Estimates The preparation of financial statements in conformity with generally accepted accounting principles 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 For 2013, changes to accumulated other comprehensive income (OCI) for Con Edison and CECONY are as follows:
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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 | Note B – Regulatory Matters Rate Plans CECONY — Electric In March 2010, the NYSPSC adopted a November 2009 Joint Proposal among CECONY, NYSPSC staff and other parties, with respect to the company’s May 2009 request to the NYSPSC for an increase in the rates the company charged its customers for electric delivery service. The Joint Proposal included a rate plan that provided for electric base rate increases of $420 million, effective April 2010 and 2011, and $287 million, effective April 2012, with an additional $134 million to be collected through a surcharge in the rate year ending March 2013. In March 2012, the NYSPSC issued an order requiring that the $134 million surcharge that was to have been collected from customers during the rate year ending March 2013 instead be offset using certain CECONY regulatory liabilities that would have otherwise been refundable to or applied for the benefit of customers after the rate year. The rate plan reflected the following major items:
In February 2014, the NYSPSC adopted a December 2013 Joint Proposal among CECONY, NYSPSC staff and other parties. The Joint Proposal includes an electric rate plan that covers the two-year period January 2014 through December 2015 and is designed to produce a reduction in annual revenues of $76 million in the rate year ending December 2014 and an increase in annual revenues of $124 million in the rate year ending December 2015. The impact of these base rate changes is being deferred which will result in a $30 million regulatory liability at December 31, 2015. The rate plan reflects the following major items with respect to CECONY’s rates for electric delivery service:
O&R — Electric In July 2008, the NYSPSC adopted a Joint Proposal among O&R, the NYSPSC staff and other parties for the rates O&R charged its New York customers for electric service from July 2008 through June 2011. The rate plan approved by the NYSPSC provided for electric rate increases of $15.6 million, $15.6 million and $5.7 million effective July 1, 2008, 2009 and 2010, respectively, and the collection of an additional $9.9 million during the 12-month period beginning July 1, 2010. The rate plan reflected the following major items:
In June 2011, the NYSPSC adopted an order granting O&R an electric rate increase, effective July 1, 2011, of $26.6 million. The NYSPSC ruling reflected the following major items:
In June 2012, the NYSPSC adopted a February 2012 Joint Proposal among O&R, NYSPSC staff and the Utility Intervention Unit of the New York State Department of State Division of Consumer Protection with respect to the company’s rates for electric delivery service rendered in New York. The Joint Proposal includes a rate plan that covers the three-year period from July 2012 through June 2015. The rate plan provides for electric base rate increases of $19.4 million, $8.8 million and $15.2 million, effective July 2012, 2013 and 2014, respectively, which is being implemented, at the NYSPSC’s option, with increases of $15.2 million effective July 2012 and 2013 and an increase of $13.1 million, together with a surcharge of $2.1 million, effective July 2014. The rate plan reflects the following major items:
In May 2010, O&R’s New Jersey regulated utility subsidiary, Rockland Electric Company (RECO), the Division of Rate Counsel, staff of the New Jersey Board of Public Utilities (NJBPU) and certain other parties entered into a stipulation of settlement with respect to the company’s August 2009 request to increase the rates that it can charge its customers for electric delivery service. The stipulation, which was approved by the Board of the NJBPU, provided for an electric rate increase, effective May 17, 2010, of $9.8 million. The stipulation reflected a return on common equity of 10.3 percent and a common equity ratio of approximately 50 percent. The stipulation continued current provisions with respect to recovery from customers of the cost of purchased power and did not provide for reconciliation of actual expenses to amounts reflected in electric rates for pension and other postretirement benefit costs. The stipulation required RECO to file a base rate case by December 1, 2013. In November 2013, RECO filed a request with the NJBPU for a net increase in the rates it charges for electric service, effective September 2014, of $19.3 million. The filing reflects a return on common equity of 10.25 percent and a common equity ratio of 52.2 percent. The filing proposes the recovery over a three-year period of $25.4 million of costs incurred in response to major storm events in 2011 and 2012 that had been deferred for recovery and the continuation of the current provisions with respect to recovery from customers of the cost of purchased power. CECONY — Gas In September 2010, the NYSPSC adopted a May 2010 Joint Proposal among CECONY, the staff of the NYSPSC and other parties, with respect to the company’s rates for gas delivery service. The Joint Proposal included a gas rate plan that provided for base rate increases of $47.1 million, $47.9 million and $46.7 million, effective October 2010, 2011 and 2012, respectively. The rate plan reflected the following major items:
In February 2014, the NYSPSC adopted a December 2013 Joint Proposal among CECONY, NYSPSC staff and other parties. The Joint Proposal includes a gas rate plan that covers the three-year period January 2014 through December 2016 and is designed to produce a reduction in annual revenues of $55 million in the rate year ending December 2014 and increases in annual revenues of $39 million and $57 million in the rate years ending December 2015 and 2016, respectively. The impact of these base rate changes is being deferred which will result in a $32 million regulatory liability at December 31, 2016. The rate plan reflects the following major items with respect to CECONY’s rates for gas delivery service:
O&R — Gas In October 2009, the NYSPSC adopted a June 2009 Joint Proposal among O&R, NYSPSC staff and other parties. As approved, the Joint Proposal established a gas rate plan that increased base rates $9 million in each of the rate years ended October 2010 and 2011 and $4.6 million in rate year ended October 2012, with an additional $4.3 million to be collected through a surcharge in the rate year ended October 2012. The rate plan reflected the following major items:
CECONY — Steam In September 2010 the NYSPSC adopted a May 2010 Joint Proposal among CECONY, NYSPSC staff and other parties, with respect to the company’s rates for steam service. The Joint Proposal included a steam rate plan that provided for rate increases of $49.5 million, effective October 2010 and 2011, and $17.8 million, effective October 2012, with an additional $31.7 million to be collected through a surcharge in the rate year ending September 2013. The rate plan reflected the following major items:
In 2013 the NYSPSC approved the phase-in, over a period of seven years, of an increase in the allocation to steam customers of the fuel costs for the company’s East River Repowering Project (ERRP, which cogenerates electricity and steam) that are above the market value of the electric energy generated by ERRP. In February 2014, the NYSPSC adopted a December 2013 Joint Proposal among CECONY, NYSPSC staff and other parties. The Joint Proposal includes a steam rate plan that covers the three-year period January 2014 through December 2016 and is designed to produce a reduction in annual revenues of $22 million in the rate year ending December 2014 and increases in annual revenues of $20 million in each of the rate years ending December 2015 and 2016. The impact of these base rate changes is being deferred which will result in an $8 million regulatory liability at December 31, 2016. The rate plan reflects the following major items with respect to CECONY’s rates for steam service:
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, 2013, the company had collected an estimated $1,389 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, 2013, the company had a $40 million regulatory liability relating to this matter. Included in the $40 million regulatory liability is $16 million the company recovered from vendors, arrested employees and insurers relating to this matter. Pursuant to the December 2013 Joint Proposal (discussed above in this Note B), the company will apply $15 million of these recovered amounts for the benefit of customers to offset a like amount of regulatory assets. The company currently estimates that any additional amount the NYSPSC requires the company to refund to customers could range in amount from $25 million 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, 2013, CECONY and O&R incurred response and restoration costs for Superstorm Sandy of $483 million and $91 million, respectively (including capital expenditures of $147 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. O&R expects to request recovery of deferred storm costs for its New York electric operations, which are also subject to NYSPSC review, when it next files with the NYSPSC for a new electric rate plan. The November 2013 electric rate request RECO filed with the NJBPU includes a proposal for recovery over a three-year period of its deferred storm costs of $27 million. In March 2013, the NJBPU established a proceeding to review the prudency of costs incurred by New Jersey utilities in response to major storm events in 2011 and 2012. See “Rate Plans — CECONY-Electric and O&R-Electric,” above.
Regulatory Assets and Liabilities Regulatory assets and liabilities at December 31, 2013 and 2012 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, in accordance with CECONY’s March 2010 rate plan. “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. At December 31, 2013, CECONY has deferred the net margin on the unbilled revenues for the future benefit of customers by recording a regulatory liability of $133 million for the difference between the unbilled revenues and energy cost liabilities. |
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| Regulatory Matters | Note B – Regulatory Matters Rate Plans CECONY — Electric In March 2010, the NYSPSC adopted a November 2009 Joint Proposal among CECONY, NYSPSC staff and other parties, with respect to the company’s May 2009 request to the NYSPSC for an increase in the rates the company charged its customers for electric delivery service. The Joint Proposal included a rate plan that provided for electric base rate increases of $420 million, effective April 2010 and 2011, and $287 million, effective April 2012, with an additional $134 million to be collected through a surcharge in the rate year ending March 2013. In March 2012, the NYSPSC issued an order requiring that the $134 million surcharge that was to have been collected from customers during the rate year ending March 2013 instead be offset using certain CECONY regulatory liabilities that would have otherwise been refundable to or applied for the benefit of customers after the rate year. The rate plan reflected the following major items:
In February 2014, the NYSPSC adopted a December 2013 Joint Proposal among CECONY, NYSPSC staff and other parties. The Joint Proposal includes an electric rate plan that covers the two-year period January 2014 through December 2015 and is designed to produce a reduction in annual revenues of $76 million in the rate year ending December 2014 and an increase in annual revenues of $124 million in the rate year ending December 2015. The impact of these base rate changes is being deferred which will result in a $30 million regulatory liability at December 31, 2015. The rate plan reflects the following major items with respect to CECONY’s rates for electric delivery service:
O&R — Electric In July 2008, the NYSPSC adopted a Joint Proposal among O&R, the NYSPSC staff and other parties for the rates O&R charged its New York customers for electric service from July 2008 through June 2011. The rate plan approved by the NYSPSC provided for electric rate increases of $15.6 million, $15.6 million and $5.7 million effective July 1, 2008, 2009 and 2010, respectively, and the collection of an additional $9.9 million during the 12-month period beginning July 1, 2010. The rate plan reflected the following major items:
In June 2011, the NYSPSC adopted an order granting O&R an electric rate increase, effective July 1, 2011, of $26.6 million. The NYSPSC ruling reflected the following major items:
In June 2012, the NYSPSC adopted a February 2012 Joint Proposal among O&R, NYSPSC staff and the Utility Intervention Unit of the New York State Department of State Division of Consumer Protection with respect to the company’s rates for electric delivery service rendered in New York. The Joint Proposal includes a rate plan that covers the three-year period from July 2012 through June 2015. The rate plan provides for electric base rate increases of $19.4 million, $8.8 million and $15.2 million, effective July 2012, 2013 and 2014, respectively, which is being implemented, at the NYSPSC’s option, with increases of $15.2 million effective July 2012 and 2013 and an increase of $13.1 million, together with a surcharge of $2.1 million, effective July 2014. The rate plan reflects the following major items:
In May 2010, O&R’s New Jersey regulated utility subsidiary, Rockland Electric Company (RECO), the Division of Rate Counsel, staff of the New Jersey Board of Public Utilities (NJBPU) and certain other parties entered into a stipulation of settlement with respect to the company’s August 2009 request to increase the rates that it can charge its customers for electric delivery service. The stipulation, which was approved by the Board of the NJBPU, provided for an electric rate increase, effective May 17, 2010, of $9.8 million. The stipulation reflected a return on common equity of 10.3 percent and a common equity ratio of approximately 50 percent. The stipulation continued current provisions with respect to recovery from customers of the cost of purchased power and did not provide for reconciliation of actual expenses to amounts reflected in electric rates for pension and other postretirement benefit costs. The stipulation required RECO to file a base rate case by December 1, 2013. In November 2013, RECO filed a request with the NJBPU for a net increase in the rates it charges for electric service, effective September 2014, of $19.3 million. The filing reflects a return on common equity of 10.25 percent and a common equity ratio of 52.2 percent. The filing proposes the recovery over a three-year period of $25.4 million of costs incurred in response to major storm events in 2011 and 2012 that had been deferred for recovery and the continuation of the current provisions with respect to recovery from customers of the cost of purchased power. CECONY — Gas In September 2010, the NYSPSC adopted a May 2010 Joint Proposal among CECONY, the staff of the NYSPSC and other parties, with respect to the company’s rates for gas delivery service. The Joint Proposal included a gas rate plan that provided for base rate increases of $47.1 million, $47.9 million and $46.7 million, effective October 2010, 2011 and 2012, respectively. The rate plan reflected the following major items:
In February 2014, the NYSPSC adopted a December 2013 Joint Proposal among CECONY, NYSPSC staff and other parties. The Joint Proposal includes a gas rate plan that covers the three-year period January 2014 through December 2016 and is designed to produce a reduction in annual revenues of $55 million in the rate year ending December 2014 and increases in annual revenues of $39 million and $57 million in the rate years ending December 2015 and 2016, respectively. The impact of these base rate changes is being deferred which will result in a $32 million regulatory liability at December 31, 2016. The rate plan reflects the following major items with respect to CECONY’s rates for gas delivery service:
O&R — Gas In October 2009, the NYSPSC adopted a June 2009 Joint Proposal among O&R, NYSPSC staff and other parties. As approved, the Joint Proposal established a gas rate plan that increased base rates $9 million in each of the rate years ended October 2010 and 2011 and $4.6 million in rate year ended October 2012, with an additional $4.3 million to be collected through a surcharge in the rate year ended October 2012. The rate plan reflected the following major items:
CECONY — Steam In September 2010 the NYSPSC adopted a May 2010 Joint Proposal among CECONY, NYSPSC staff and other parties, with respect to the company’s rates for steam service. The Joint Proposal included a steam rate plan that provided for rate increases of $49.5 million, effective October 2010 and 2011, and $17.8 million, effective October 2012, with an additional $31.7 million to be collected through a surcharge in the rate year ending September 2013. The rate plan reflected the following major items:
In 2013 the NYSPSC approved the phase-in, over a period of seven years, of an increase in the allocation to steam customers of the fuel costs for the company’s East River Repowering Project (ERRP, which cogenerates electricity and steam) that are above the market value of the electric energy generated by ERRP. In February 2014, the NYSPSC adopted a December 2013 Joint Proposal among CECONY, NYSPSC staff and other parties. The Joint Proposal includes a steam rate plan that covers the three-year period January 2014 through December 2016 and is designed to produce a reduction in annual revenues of $22 million in the rate year ending December 2014 and increases in annual revenues of $20 million in each of the rate years ending December 2015 and 2016. The impact of these base rate changes is being deferred which will result in an $8 million regulatory liability at December 31, 2016. The rate plan reflects the following major items with respect to CECONY’s rates for steam service:
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, 2013, the company had collected an estimated $1,389 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, 2013, the company had a $40 million regulatory liability relating to this matter. Included in the $40 million regulatory liability is $16 million the company recovered from vendors, arrested employees and insurers relating to this matter. Pursuant to the December 2013 Joint Proposal (discussed above in this Note B), the company will apply $15 million of these recovered amounts for the benefit of customers to offset a like amount of regulatory assets. The company currently estimates that any additional amount the NYSPSC requires the company to refund to customers could range in amount from $25 million 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, 2013, CECONY and O&R incurred response and restoration costs for Superstorm Sandy of $483 million and $91 million, respectively (including capital expenditures of $147 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. O&R expects to request recovery of deferred storm costs for its New York electric operations, which are also subject to NYSPSC review, when it next files with the NYSPSC for a new electric rate plan. The November 2013 electric rate request RECO filed with the NJBPU includes a proposal for recovery over a three-year period of its deferred storm costs of $27 million. In March 2013, the NJBPU established a proceeding to review the prudency of costs incurred by New Jersey utilities in response to major storm events in 2011 and 2012. See “Rate Plans — CECONY-Electric and O&R-Electric,” above.
Regulatory Assets and Liabilities Regulatory assets and liabilities at December 31, 2013 and 2012 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, in accordance with CECONY’s March 2010 rate plan. “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. At December 31, 2013, CECONY has deferred the net margin on the unbilled revenues for the future benefit of customers by recording a regulatory liability of $133 million for the difference between the unbilled revenues and energy cost liabilities. |
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- Definition
Public Utilities disclosure of Regulatory Matters Pending No definition available.
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Capitalization
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Dec. 31, 2013
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| Capitalization | Note C – Capitalization Common Stock At December 31, 2013 and 2012, 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 2014-2018 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 are:
Fair values of long-term debt have been estimated primarily using available market information. For Con Edison, $11,446 million and $636 million of the fair value of long-term debt at December 31, 2013 are classified as Level 2 and Level 3, respectively. For CECONY, $10,161 million and $636 million of the fair value of long-term debt at December 31, 2013 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, 2013 and 2012, long-term debt of Con Edison included $22 million and $25 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 believe that they were in compliance with their significant debt covenants at December 31, 2013. 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 with respect to the debt to which such provisions applied. The failure to comply with debt covenants would, except as otherwise provided, constitute an event of default with respect to 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, 2013 and 2012, 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 2014-2018 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 are:
Fair values of long-term debt have been estimated primarily using available market information. For Con Edison, $11,446 million and $636 million of the fair value of long-term debt at December 31, 2013 are classified as Level 2 and Level 3, respectively. For CECONY, $10,161 million and $636 million of the fair value of long-term debt at December 31, 2013 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, 2013 and 2012, long-term debt of Con Edison included $22 million and $25 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 believe that they were in compliance with their significant debt covenants at December 31, 2013. 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 with respect to the debt to which such provisions applied. The failure to comply with debt covenants would, except as otherwise provided, constitute an event of default with respect to 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
Tabular disclosure of the capitalization of the entity 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Short-Term Borrowing
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12 Months Ended |
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Dec. 31, 2013
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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, 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 was 0.2 percent for both Con Edison and CECONY. At December 31, 2012, Con Edison had $539 million of commercial paper outstanding of which $421 million was outstanding under CECONY’s program. The weighted average interest rate was 0.3 percent for both Con Edison and CECONY. At December 31, 2013 and 2012, $26 million (including $11 million for CECONY) and $131 million (including $121 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, 2013 this ratio was 0.50 to 1 for Con Edison and CECONY); having liens on its assets in an aggregate amount exceeding 5 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. 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, 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 was 0.2 percent for both Con Edison and CECONY. At December 31, 2012, Con Edison had $539 million of commercial paper outstanding of which $421 million was outstanding under CECONY’s program. The weighted average interest rate was 0.3 percent for both Con Edison and CECONY. At December 31, 2013 and 2012, $26 million (including $11 million for CECONY) and $131 million (including $121 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, 2013 this ratio was 0.50 to 1 for Con Edison and CECONY); having liens on its assets in an aggregate amount exceeding 5 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. 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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Dec. 31, 2013
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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’ net periodic benefit costs for 2013, 2012, and 2011 were as follows:
Funded Status The funded status at December 31, 2013, 2012, and 2011 was as follows:
The decrease in the pension plan’s projected benefit obligation (due primarily to increased discount rates) and an increase in actual return on plan assets, were the primary drivers in the decreased pension liability at Con Edison and CECONY of $2,829 million and $2,672 million, respectively, compared with December 31, 2012. For Con Edison, this decrease in pension liability resulted in a decrease to regulatory assets of $2,799 million for unrecognized net losses and unrecognized prior service costs associated with the Utilities consistent with the accounting rules for regulated operations and a credit to OCI of $24 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 decrease in pension liability resulted in a decrease to regulatory assets of $2,677 million for unrecognized net losses and unrecognized prior service costs consistent with the accounting rules for regulated operations, a credit 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 $619 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 $586 million and $2 million, respectively, for CECONY. At December 31, 2013 and 2012, Con Edison’s investments include $201 million and $164 million, respectively, held in external trust accounts for benefit payments pursuant to the supplemental retirement plans. Included in these amounts for CECONY were $183 million and $148 million, respectively. See Note P. The accumulated benefit obligations for the supplemental retirement plans for Con Edison and CECONY were $234 million and $199 million as of December 31, 2013 and $231 million and $193 million as of December 31, 2012, 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, 2013, the Companies expect to make contributions to the pension plan during 2014 of $575 million (of which $536 million is to be contributed by CECONY). The Companies’ policy is to fund their accounting cost to the extent tax deductible. Plan Assets The asset allocations for the pension plan at the end of 2013, 2012, and 2011, and the target allocation for 2014 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 2014 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 established by the accounting rules which define the levels within the hierarchy as follows:
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 fair values of the pension plan assets at December 31, 2012 by asset category are as follows:
The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2012 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:
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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’ net periodic benefit costs for 2013, 2012, and 2011 were as follows:
Funded Status The funded status at December 31, 2013, 2012, and 2011 was as follows:
The decrease in the pension plan’s projected benefit obligation (due primarily to increased discount rates) and an increase in actual return on plan assets, were the primary drivers in the decreased pension liability at Con Edison and CECONY of $2,829 million and $2,672 million, respectively, compared with December 31, 2012. For Con Edison, this decrease in pension liability resulted in a decrease to regulatory assets of $2,799 million for unrecognized net losses and unrecognized prior service costs associated with the Utilities consistent with the accounting rules for regulated operations and a credit to OCI of $24 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 decrease in pension liability resulted in a decrease to regulatory assets of $2,677 million for unrecognized net losses and unrecognized prior service costs consistent with the accounting rules for regulated operations, a credit 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 $619 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 $586 million and $2 million, respectively, for CECONY. At December 31, 2013 and 2012, Con Edison’s investments include $201 million and $164 million, respectively, held in external trust accounts for benefit payments pursuant to the supplemental retirement plans. Included in these amounts for CECONY were $183 million and $148 million, respectively. See Note P. The accumulated benefit obligations for the supplemental retirement plans for Con Edison and CECONY were $234 million and $199 million as of December 31, 2013 and $231 million and $193 million as of December 31, 2012, 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, 2013, the Companies expect to make contributions to the pension plan during 2014 of $575 million (of which $536 million is to be contributed by CECONY). The Companies’ policy is to fund their accounting cost to the extent tax deductible. Plan Assets The asset allocations for the pension plan at the end of 2013, 2012, and 2011, and the target allocation for 2014 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 2014 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 established by the accounting rules which define the levels within the hierarchy as follows:
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 fair values of the pension plan assets at December 31, 2012 by asset category are as follows:
The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2012 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:
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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, 2013
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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 2013, 2012, and 2011 were as follows:
Funded Status The funded status of the programs at December 31, 2013, 2012, and 2011 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 its postretirement health benefit obligation of $306 million as of December 31, 2012, which was recorded as an actuarial gain. The decrease in the value of the other postretirement benefit plan obligation (due primarily to increased discount rates) and an increase in actual return on plan assets, were the primary drivers in the decreased liability for other postretirement benefits at Con Edison and CECONY of $125 million and $95 million, respectively, compared with December 31, 2012. For Con Edison, this decreased liability resulted in a decrease to regulatory assets of $148 million for unrecognized net losses and unrecognized prior service costs associated with the Utilities consistent with the accounting rules for regulated operations and a credit to OCI of $4 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 decrease in liability resulted in a decrease to regulatory assets of $120 million for unrecognized net losses and unrecognized prior service costs associated with the company consistent with the accounting rules for regulated operations and an immaterial change to OCI for unrecognized net losses and 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 $59 million and $(19) 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 $52 million and $(15) 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, 2013 was 5.75 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, 2013 was 5.50 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, 2014:
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, 2013, Con Edison expects to make a contribution of $7 million, nearly all of which is for CECONY, to the other postretirement benefit plans in 2014. Plan Assets The asset allocations for CECONY’s other postretirement benefit plans at the end of 2013, 2012 and 2011, and the target allocation for 2014 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, 2013 by asset category (see description of levels in Note E) 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 fair values of the plan assets at December 31, 2012 by asset category (see description of levels in Note E) are as follows:
The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2012 classified as Level 3 in the fair value hierarchy.
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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 2013, 2012, and 2011 were as follows:
Funded Status The funded status of the programs at December 31, 2013, 2012, and 2011 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 its postretirement health benefit obligation of $306 million as of December 31, 2012, which was recorded as an actuarial gain. The decrease in the value of the other postretirement benefit plan obligation (due primarily to increased discount rates) and an increase in actual return on plan assets, were the primary drivers in the decreased liability for other postretirement benefits at Con Edison and CECONY of $125 million and $95 million, respectively, compared with December 31, 2012. For Con Edison, this decreased liability resulted in a decrease to regulatory assets of $148 million for unrecognized net losses and unrecognized prior service costs associated with the Utilities consistent with the accounting rules for regulated operations and a credit to OCI of $4 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 decrease in liability resulted in a decrease to regulatory assets of $120 million for unrecognized net losses and unrecognized prior service costs associated with the company consistent with the accounting rules for regulated operations and an immaterial change to OCI for unrecognized net losses and 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 $59 million and $(19) 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 $52 million and $(15) 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, 2013 was 5.75 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, 2013 was 5.50 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, 2014:
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, 2013, Con Edison expects to make a contribution of $7 million, nearly all of which is for CECONY, to the other postretirement benefit plans in 2014. Plan Assets The asset allocations for CECONY’s other postretirement benefit plans at the end of 2013, 2012 and 2011, and the target allocation for 2014 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, 2013 by asset category (see description of levels in Note E) 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 fair values of the plan assets at December 31, 2012 by asset category (see description of levels in Note E) are as follows:
The table below provides a reconciliation of the beginning and ending net balances for assets at December 31, 2012 classified as Level 3 in the fair value hierarchy.
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| X | ||||||||||
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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, 2013
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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 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, 2013 and 2012 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. 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, 2013 and 2012 were as follows:
In 2013, CECONY estimated that for its manufactured gas plant sites, its aggregate undiscounted potential liability for the investigation and remediation of coal tar and/or other manufactured gas plant-related environmental contaminants could range up to $2.4 billion. In 2013, O&R estimated that for its manufactured gas plant sites, each of which has been investigated, the aggregate undiscounted potential liability for the remediation of such contaminants could range up to $167 million. 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. In 2013, Con Edison and CECONY estimated that their aggregate undiscounted potential liabilities for these suits and additional suits that may be brought over the next 15 years were $8 million and $7 million, respectively. The estimates were based upon a combination of modeling, historical data analysis and risk factor assessment. Actual experience may be materially different. 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, 2013 and 2012 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 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, 2013 and 2012 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. 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, 2013 and 2012 were as follows:
In 2013, CECONY estimated that for its manufactured gas plant sites, its aggregate undiscounted potential liability for the investigation and remediation of coal tar and/or other manufactured gas plant-related environmental contaminants could range up to $2.4 billion. In 2013, O&R estimated that for its manufactured gas plant sites, each of which has been investigated, the aggregate undiscounted potential liability for the remediation of such contaminants could range up to $167 million. 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. In 2013, Con Edison and CECONY estimated that their aggregate undiscounted potential liabilities for these suits and additional suits that may be brought over the next 15 years were $8 million and $7 million, respectively. The estimates were based upon a combination of modeling, historical data analysis and risk factor assessment. Actual experience may be materially different. 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, 2013 and 2012 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, 2013
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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 90 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. At December 31, 2013, the company has accrued its estimated liability for the suits of $50 million and an insurance receivable in the same amount. 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 $1,331 million and $859 million at December 31, 2013 and 2012, respectively. A summary, by type and term, of Con Edison’s total guarantees at December 31, 2013 is as follows:
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. Solar Energy Projects — Con Edison and Con Edison Development guarantee payments associated with the investment in solar energy facilities on behalf of their wholly-owned subsidiaries. In addition, Con Edison Development has entered into a guarantee ($80 million maximum) on behalf of an entity 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, 2013. |
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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 90 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. At December 31, 2013, the company has accrued its estimated liability for the suits of $50 million and an insurance receivable in the same amount. 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 $1,331 million and $859 million at December 31, 2013 and 2012, respectively. A summary, by type and term, of Con Edison’s total guarantees at December 31, 2013 is as follows:
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. Solar Energy Projects — Con Edison and Con Edison Development guarantee payments associated with the investment in solar energy facilities on behalf of their wholly-owned subsidiaries. In addition, Con Edison Development has entered into a guarantee ($80 million maximum) on behalf of an entity 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, 2013. |
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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, 2013
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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, 2013, 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 2013, 2012, and 2011 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, 2013, 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 2013, 2012, and 2011 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, 2013
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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, 2013 and 2012:
The accumulated amortization of the capital leases for Con Edison and CECONY was $1 million and $0.6 million, respectively at December 31, 2013, and $1 million and $0.4 million, respectively at December 31, 2012. 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 return for 1997, the Internal Revenue Service (IRS) disallowed tax losses in connection with the 1997 LILO transaction and assessed the company a $0.3 million income tax deficiency. On audits of Con Edison’s 1998 through 2011 tax returns, the IRS disallowed $574 million of tax losses taken with respect to both LILO transactions. In December 2005, Con Edison paid the $0.3 million deficiency asserted by the IRS for the tax year 1997 with respect to the 1997 LILO transaction. In April 2006, the company paid interest of $0.2 million associated with the deficiency and commenced an action in the United States Court of Federal Claims, entitled Consolidated Edison Company of New York, Inc. v. United States, to obtain a refund of tax and interest. A trial was completed in November 2007. In October 2009, the court issued a decision in favor of the company concluding that the 1997 LILO transaction was, in substance, a true lease that possessed economic substance, the loans relating to the lease constituted bona fide indebtedness, and the deductions for the 1997 LILO transactions claimed by the company in its 1997 federal income tax return are allowable. In January 2013, the United States Court of Appeals for the Federal Circuit reversed the October 2009 trial court decision and disallowed the tax losses claimed by the company relating to the 1997 LILO transaction. In March 2013, the Court of Appeals denied the company’s request to grant rehearing en banc of the January 2013 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, 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 with respect to the LILO transactions (see “Uncertain Tax Positions” in Note L). In June 2013, the 1999 LILO transaction was terminated, as a result of which the company realized a $29 million gain (after-tax) and received net cash proceeds of $108 million. In August 2013, the 1997 LILO transaction was terminated, resulting in a $26 million gain (after-tax) and net cash proceeds of $92 million. The effect on Con Edison’s consolidated income statement is as follows:
The transactions did not impact earnings in 2012 or 2011. 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 certain tax years, primarily relating to tax liability from the LILO transactions. In 2014, the company expects to apply the remainder of its January 2013 deposit against its federal and state tax liabilities 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, 2013 and 2012:
The accumulated amortization of the capital leases for Con Edison and CECONY was $1 million and $0.6 million, respectively at December 31, 2013, and $1 million and $0.4 million, respectively at December 31, 2012. 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 return for 1997, the Internal Revenue Service (IRS) disallowed tax losses in connection with the 1997 LILO transaction and assessed the company a $0.3 million income tax deficiency. On audits of Con Edison’s 1998 through 2011 tax returns, the IRS disallowed $574 million of tax losses taken with respect to both LILO transactions. In December 2005, Con Edison paid the $0.3 million deficiency asserted by the IRS for the tax year 1997 with respect to the 1997 LILO transaction. In April 2006, the company paid interest of $0.2 million associated with the deficiency and commenced an action in the United States Court of Federal Claims, entitled Consolidated Edison Company of New York, Inc. v. United States, to obtain a refund of tax and interest. A trial was completed in November 2007. In October 2009, the court issued a decision in favor of the company concluding that the 1997 LILO transaction was, in substance, a true lease that possessed economic substance, the loans relating to the lease constituted bona fide indebtedness, and the deductions for the 1997 LILO transactions claimed by the company in its 1997 federal income tax return are allowable. In January 2013, the United States Court of Appeals for the Federal Circuit reversed the October 2009 trial court decision and disallowed the tax losses claimed by the company relating to the 1997 LILO transaction. In March 2013, the Court of Appeals denied the company’s request to grant rehearing en banc of the January 2013 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, 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 with respect to the LILO transactions (see “Uncertain Tax Positions” in Note L). In June 2013, the 1999 LILO transaction was terminated, as a result of which the company realized a $29 million gain (after-tax) and received net cash proceeds of $108 million. In August 2013, the 1997 LILO transaction was terminated, resulting in a $26 million gain (after-tax) and net cash proceeds of $92 million. The effect on Con Edison’s consolidated income statement is as follows:
The transactions did not impact earnings in 2012 or 2011. 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 certain tax years, primarily relating to tax liability from the LILO transactions. In 2014, the company expects to apply the remainder of its January 2013 deposit against its federal and state tax liabilities 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, 2013
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| Goodwill | Note K – Goodwill In 2013 and 2012, 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 2013 and 2012, Con Edison completed impairment tests for the goodwill of $23 million related to two energy services companies acquired by Con Edison Solutions and an interest in a gas storage company acquired by Con Edison Development, and determined that the goodwill was not impaired. |
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CECONY [Member]
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| Goodwill | Note K – Goodwill In 2013 and 2012, 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 2013 and 2012, Con Edison completed impairment tests for the goodwill of $23 million related to two energy services companies acquired by Con Edison Solutions and an interest in a gas storage company acquired by Con Edison Development, and determined that the goodwill was not impaired. |
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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, 2013
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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:
In 2013, Con Edison applied its entire amount of federal and New York State net operating loss carryforwards of $529 million and $213 million, respectively. For New York City income tax purposes, Con Edison has a net operating loss carryforward available from the years 1999 through 2013 for which a deferred tax asset of $12 million has been recognized and will not expire until the years 2019 through 2033. A full valuation allowance 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 is not expected to have a material impact on the Companies’ financial position, results of operations or liquidity. 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. The Companies’ 2011 and 2010 federal income tax returns reflect, among other things, an incremental current deduction for the costs of certain repairs to utility plant (the “repair allowance deductions”). Prior to 2009, the Companies capitalized such costs and included these costs in depreciation expense in federal income tax returns. In 2012, with respect to the repair allowance deductions, Con Edison and CECONY recorded liabilities for uncertain tax positions of $72 million and $66 million, respectively. In 2013, the IRS accepted the Companies’ repair allowance deductions. As a result of this settlement, Con Edison and CECONY reduced their estimated liabilities for prior year uncertain tax positions by $72 million and $66 million, respectively, with a corresponding increase to accumulated deferred income tax liabilities. In addition, as a result of the January 2013 Court of Appeals decision (see “Lease In/Lease Out Transactions” in Note J), Con Edison increased its estimated prior year liabilities for federal and state uncertain tax positions by $249 million, with a corresponding reduction to accumulated deferred income tax liabilities. In June 2013, Con Edison entered into a closing agreement with the IRS regarding the 1997 and 1999 LILO transactions, as a result of which Con Edison decreased its estimated prior year liabilities for federal and state uncertain tax positions by $249 million, with a corresponding increase to its current income tax liability. These changes to the Companies’ estimated liabilities for uncertain tax positions had no impact on income tax expense for the year ended December 31, 2013. During the third quarter of 2013, the IRS completed its audits of the Companies’ federal income tax returns for the tax years 1998 through 2011 and Con Edison and CECONY recognized income tax benefits of approximately $13 million and $7 million, respectively, including $6 million that favorably affected Con Edison’s effective tax rate in 2013. Any adjustments to the federal income tax returns would result in changes to the Companies’ state income tax returns. The Companies’ state income tax returns for their primary jurisdiction, New York, for years beginning with 2006 remain open for examination. A reconciliation of the beginning and ending amounts of unrecognized tax benefits for Con Edison and CECONY follows:
At December 31, 2013, the Companies’ estimated liabilities for uncertain tax positions ($9 million for Con Edison and an immaterial amount for CECONY) were classified on their respective consolidated balance sheets as a noncurrent liability ($9 million for Con Edison) and as a current liability (an immaterial amount for CECONY). As of December 31, 2013, the Companies reasonably expect to resolve an immaterial amount of their uncertain tax positions within the next 12 months. 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 2013, Con Edison recognized $121 million of interest expense ($131 million related to the LILO transactions, less a reduction of $10 million in accrued interest expense primarily associated with repair allowance deductions and reversing other uncertain tax positions in 2013). In 2012 and 2011, the Companies recognized an immaterial amount of interest and no penalties for uncertain tax positions in their consolidated income statements. At December 31, 2013 and 2012, the Companies recognized an immaterial amount of interest and no penalties in their consolidated balance sheets. At December 31, 2013, the total amount of unrecognized tax benefits that, if recognized, would affect the Companies’ effective tax rate is $9 million for Con Edison and an immaterial amount for 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:
In 2013, Con Edison applied its entire amount of federal and New York State net operating loss carryforwards of $529 million and $213 million, respectively. For New York City income tax purposes, Con Edison has a net operating loss carryforward available from the years 1999 through 2013 for which a deferred tax asset of $12 million has been recognized and will not expire until the years 2019 through 2033. A full valuation allowance 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 is not expected to have a material impact on the Companies’ financial position, results of operations or liquidity. 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. The Companies’ 2011 and 2010 federal income tax returns reflect, among other things, an incremental current deduction for the costs of certain repairs to utility plant (the “repair allowance deductions”). Prior to 2009, the Companies capitalized such costs and included these costs in depreciation expense in federal income tax returns. In 2012, with respect to the repair allowance deductions, Con Edison and CECONY recorded liabilities for uncertain tax positions of $72 million and $66 million, respectively. In 2013, the IRS accepted the Companies’ repair allowance deductions. As a result of this settlement, Con Edison and CECONY reduced their estimated liabilities for prior year uncertain tax positions by $72 million and $66 million, respectively, with a corresponding increase to accumulated deferred income tax liabilities. In addition, as a result of the January 2013 Court of Appeals decision (see “Lease In/Lease Out Transactions” in Note J), Con Edison increased its estimated prior year liabilities for federal and state uncertain tax positions by $249 million, with a corresponding reduction to accumulated deferred income tax liabilities. In June 2013, Con Edison entered into a closing agreement with the IRS regarding the 1997 and 1999 LILO transactions, as a result of which Con Edison decreased its estimated prior year liabilities for federal and state uncertain tax positions by $249 million, with a corresponding increase to its current income tax liability. These changes to the Companies’ estimated liabilities for uncertain tax positions had no impact on income tax expense for the year ended December 31, 2013. During the third quarter of 2013, the IRS completed its audits of the Companies’ federal income tax returns for the tax years 1998 through 2011 and Con Edison and CECONY recognized income tax benefits of approximately $13 million and $7 million, respectively, including $6 million that favorably affected Con Edison’s effective tax rate in 2013. Any adjustments to the federal income tax returns would result in changes to the Companies’ state income tax returns. The Companies’ state income tax returns for their primary jurisdiction, New York, for years beginning with 2006 remain open for examination. A reconciliation of the beginning and ending amounts of unrecognized tax benefits for Con Edison and CECONY follows:
At December 31, 2013, the Companies’ estimated liabilities for uncertain tax positions ($9 million for Con Edison and an immaterial amount for CECONY) were classified on their respective consolidated balance sheets as a noncurrent liability ($9 million for Con Edison) and as a current liability (an immaterial amount for CECONY). As of December 31, 2013, the Companies reasonably expect to resolve an immaterial amount of their uncertain tax positions within the next 12 months. 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 2013, Con Edison recognized $121 million of interest expense ($131 million related to the LILO transactions, less a reduction of $10 million in accrued interest expense primarily associated with repair allowance deductions and reversing other uncertain tax positions in 2013). In 2012 and 2011, the Companies recognized an immaterial amount of interest and no penalties for uncertain tax positions in their consolidated income statements. At December 31, 2013 and 2012, the Companies recognized an immaterial amount of interest and no penalties in their consolidated balance sheets. At December 31, 2013, the total amount of unrecognized tax benefits that, if recognized, would affect the Companies’ effective tax rate is $9 million for Con Edison and an immaterial amount for 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, 2013
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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 1996 Stock Option Plan, under which no new awards may be issued, provided for awards of stock options to officers and employees. The last awards under the 1996 Stock Option Plan expired in 2013. The Long Term Incentive Plan, approved by Con Edison’s shareholders in 2003 (the 2003 LTIP), and the Long Term Incentive Plan, 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 to fulfill their stock-based compensation obligations for 2014. 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, 2013, 2012, and 2011:
Stock Options The Companies last issued stock options in 2006. The stock options generally vested over a three-year period and have a term of ten 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 continuous service period in which the options vested. Awards to employees eligible for retirement were expensed in the month awarded. 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. There were no options granted in 2013 and 2012. A summary of changes in the status of stock options awarded as of December 31, 2013 is as follows:
The changes in the fair value of all outstanding options from their grant dates to December 31, 2013 and 2012 (aggregate intrinsic value) for Con Edison were $6 million and $8 million, respectively. The changes in the fair value of all outstanding options from their grant dates to December 31, 2013 and 2012 (aggregate intrinsic value) for CECONY were $5 million and $6 million, respectively. The aggregate intrinsic value of options exercised in 2013 and 2012 were $2 million and $5 million, respectively, and the cash received by Con Edison for payment of the exercise price was $5 million and $14 million, respectively. The weighted average remaining contractual life of options outstanding is one year as of December 31, 2013.
The following table summarizes stock options outstanding at December 31, 2013 for each plan year for the Companies:
The income tax benefit Con Edison realized from stock options exercised in the years ended December 31, 2013, 2012 and 2011 was $10 million, an immaterial amount and $2 million, respectively. Restricted Stock and Stock Units Restricted stock and stock unit awards under the LTIP have been made as follows: (i) time-based awards to certain employees; (ii) awards that provide for adjustment of the number of units (performance-restricted stock units or Performance RSUs) to certain officers and employees; and (iii) awards to non-employee directors. Restricted stock and stock units awarded represent 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. 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, 2013 is as follows:
The total expense to be recognized by the Companies in future periods for unvested time-based awards outstanding as of December 31, 2013 for Con Edison was $2 million, including $1 million for CECONY, and is expected to be recognized over a weighted average period of one year. 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 150 percent for management employees and from 0 to 200 percent for officers, 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 for officers based on determinations made in connection with CECONY’s Executive Incentive Plan, CECONY’s Management Variable Pay Plan for non-officers, or, for certain officers, the O&R Annual Team Incentive Plan or goals relating to Con Edison’s competitive energy businesses (the EIP portion). Performance RSU awards generally vest when the performance period ends. For the TSR portion of Performance RSUs, the Companies use a Monte Carlo simulation model to estimate the fair value of the awards. The fair value is recomputed each reporting period as of the earlier of the reporting date and the vesting date. For the EIP portion of Performance RSUs, the fair value of the awards is determined using the market price as of the earlier of the reporting date or the vesting date multiplied by the average EIP 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:
The risk-free rate is based on the U.S. Treasury zero-coupon yield curve on the date of grant. The expected term of the Performance RSUs is three years, which equals the vesting period. The Companies do not expect significant forfeitures to occur. The expected volatility is calculated using daily closing stock prices over a period of three years, which approximates the expected term of the awards. A summary of changes in the status of the Performance RSUs’ TSR portion during the year ended December 31, 2013 is as follows:
A summary of changes in the status of the Performance RSUs’ EIP portion during the year ended December 31, 2013 is as follows:
The total expense to be recognized by Con Edison in future periods for unvested Performance RSUs outstanding as of December 31, 2013 is $18 million, including $15 million for CECONY and is expected to be recognized over a weighted average period of one year for both Con Edison and CECONY. 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 retainers and meeting fees into additional stock units, which are deferred until the director’s termination of service or another date specified by the director. Directors may elect to receive dividend equivalents earned on stock units either in deferred stock units or cash payments. 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, 2013, approximately 32,114 units were issued at a weighted average grant date price of $59.16. Stock Purchase Plan The Stock Purchase Plan 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 2013, 2012, and 2011, 864,281, 665,718 and 721,520 shares were purchased under the Stock Purchase Plan at a weighted average price of $57.24, $59.72 and $52.50 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 1996 Stock Option Plan, under which no new awards may be issued, provided for awards of stock options to officers and employees. The last awards under the 1996 Stock Option Plan expired in 2013. The Long Term Incentive Plan, approved by Con Edison’s shareholders in 2003 (the 2003 LTIP), and the Long Term Incentive Plan, 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 to fulfill their stock-based compensation obligations for 2014. 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, 2013, 2012, and 2011:
Stock Options The Companies last issued stock options in 2006. The stock options generally vested over a three-year period and have a term of ten 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 continuous service period in which the options vested. Awards to employees eligible for retirement were expensed in the month awarded. 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. There were no options granted in 2013 and 2012. A summary of changes in the status of stock options awarded as of December 31, 2013 is as follows:
The changes in the fair value of all outstanding options from their grant dates to December 31, 2013 and 2012 (aggregate intrinsic value) for Con Edison were $6 million and $8 million, respectively. The changes in the fair value of all outstanding options from their grant dates to December 31, 2013 and 2012 (aggregate intrinsic value) for CECONY were $5 million and $6 million, respectively. The aggregate intrinsic value of options exercised in 2013 and 2012 were $2 million and $5 million, respectively, and the cash received by Con Edison for payment of the exercise price was $5 million and $14 million, respectively. The weighted average remaining contractual life of options outstanding is one year as of December 31, 2013.
The following table summarizes stock options outstanding at December 31, 2013 for each plan year for the Companies:
The income tax benefit Con Edison realized from stock options exercised in the years ended December 31, 2013, 2012 and 2011 was $10 million, an immaterial amount and $2 million, respectively. Restricted Stock and Stock Units Restricted stock and stock unit awards under the LTIP have been made as follows: (i) time-based awards to certain employees; (ii) awards that provide for adjustment of the number of units (performance-restricted stock units or Performance RSUs) to certain officers and employees; and (iii) awards to non-employee directors. Restricted stock and stock units awarded represent 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. 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, 2013 is as follows:
The total expense to be recognized by the Companies in future periods for unvested time-based awards outstanding as of December 31, 2013 for Con Edison was $2 million, including $1 million for CECONY, and is expected to be recognized over a weighted average period of one year. 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 150 percent for management employees and from 0 to 200 percent for officers, 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 for officers based on determinations made in connection with CECONY’s Executive Incentive Plan, CECONY’s Management Variable Pay Plan for non-officers, or, for certain officers, the O&R Annual Team Incentive Plan or goals relating to Con Edison’s competitive energy businesses (the EIP portion). Performance RSU awards generally vest when the performance period ends. For the TSR portion of Performance RSUs, the Companies use a Monte Carlo simulation model to estimate the fair value of the awards. The fair value is recomputed each reporting period as of the earlier of the reporting date and the vesting date. For the EIP portion of Performance RSUs, the fair value of the awards is determined using the market price as of the earlier of the reporting date or the vesting date multiplied by the average EIP 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:
The risk-free rate is based on the U.S. Treasury zero-coupon yield curve on the date of grant. The expected term of the Performance RSUs is three years, which equals the vesting period. The Companies do not expect significant forfeitures to occur. The expected volatility is calculated using daily closing stock prices over a period of three years, which approximates the expected term of the awards. A summary of changes in the status of the Performance RSUs’ TSR portion during the year ended December 31, 2013 is as follows:
A summary of changes in the status of the Performance RSUs’ EIP portion during the year ended December 31, 2013 is as follows:
The total expense to be recognized by Con Edison in future periods for unvested Performance RSUs outstanding as of December 31, 2013 is $18 million, including $15 million for CECONY and is expected to be recognized over a weighted average period of one year for both Con Edison and CECONY. 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 retainers and meeting fees into additional stock units, which are deferred until the director’s termination of service or another date specified by the director. Directors may elect to receive dividend equivalents earned on stock units either in deferred stock units or cash payments. 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, 2013, approximately 32,114 units were issued at a weighted average grant date price of $59.16. Stock Purchase Plan The Stock Purchase Plan 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 2013, 2012, and 2011, 864,281, 665,718 and 721,520 shares were purchased under the Stock Purchase Plan at a weighted average price of $57.24, $59.72 and $52.50 per share, respectively. |
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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, 2013
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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, 2013
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| Derivative Instruments and Hedging Activities | Note O — Derivative Instruments and Hedging Activities Under the accounting rules for derivatives and hedging, derivatives are recognized on the balance sheet at fair value, unless an exception is available under the accounting rules. Certain qualifying derivative contracts have been designated as normal purchases or normal sales contracts. These contracts are not reported at fair value under the accounting rules. Energy Price Hedging 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. Effective January 1, 2013, the Companies adopted Accounting Standards Updates (ASUs) No. 2011-11, “Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities” and No. 2013-01, “Balance Sheet (Topic 210): Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities”. The amendments require the Companies to disclose certain quantitative information concerning financial and derivative instruments that are offset in the balance sheet and a description of the rights of setoff, including the nature of such rights, associated with recognized assets and liabilities that are subject to an enforceable master netting arrangement or similar agreement. The Companies enter into master agreements for their commodity derivatives. These agreements typically provide setoff in the event of contract termination. In such case, generally the non-defaulting or non-affected party’s payable will be set-off by the other party’s payable. The non-defaulting party will customarily notify the defaulting party within a specific time period and come to an agreement on the early termination amount.
The fair values of the Companies’ commodity derivatives including the offsetting of assets and liabilities at December 31, 2013 were:
The fair values of the Companies’ commodity derivatives including the offsetting of assets and liabilities at December 31, 2012 were:
Credit Exposure 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, 2013, Con Edison and CECONY had $164 million and $20 million of credit exposure in connection with energy supply and hedging activities, net of collateral, respectively. Con Edison’s net credit exposure consisted of $84 million with independent system operators, $46 million with commodity exchange brokers, $33 million with investment-grade counterparties and $1 million with non-investment grade/non-rated counterparties. CECONY’s net credit exposure consisted of $17 million with commodity exchange brokers and $3 million with investment-grade counterparties. Economic Hedges The Companies enter into certain derivative instruments that do not qualify or are not designated as hedges under the accounting rules for derivatives and hedging. However, management believes these instruments represent economic hedges that mitigate exposure to fluctuations in commodity prices.
The fair values of the Companies’ commodity derivatives at December 31, 2013 were:
The fair values of the Companies’ commodity derivatives at December 31, 2012 were:
The Utilities generally recover all of their prudently incurred fuel, purchased power and gas cost, including hedging gains and losses, in accordance with rate provisions approved by the applicable state utility commissions. 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 earnings in the reporting period in which they occur.
The following table presents the changes in the fair values of commodity derivatives that have been deferred or recognized in earnings for the year ended December 31, 2013:
The following table presents the changes in the fair values of commodity derivatives that have been deferred or recognized in earnings for the year ended December 31, 2012:
As of December 31, 2013, Con Edison had 1,116 contracts, including 547 CECONY contracts, which were considered to be derivatives under the accounting rules for derivatives and hedging (excluding qualifying derivative contracts, which have been designated as normal purchases or normal sales contracts). The following table presents the number of contracts by commodity type:
The Companies also enter into electric congestion and gas basis swap contracts to hedge the congestion and transportation charges which are associated with electric and gas contracts and hedged volumes. 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 the Companies to provide collateral on derivative instruments in net liability positions. The amount of collateral to be provided will depend on the fair value of the derivative instruments and the Companies’ credit ratings. The aggregate fair value of all derivative instruments with credit-risk-related contingent features that are in a net liability position and collateral posted at December 31, 2013, 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 were:
Interest Rate Swap O&R has an interest rate swap, which terminates in October 2014, pursuant to which it pays a fixed-rate of 6.09 percent and receives a LIBOR-based variable rate. The fair value of this interest rate swap at December 31, 2013 was an unrealized loss of $2 million, which has been included in Con Edison’s consolidated balance sheet as a current liability/fair value of derivative liabilities and a regulatory asset. The increase in the fair value of the swap for the year ended December 31, 2013 was $4 million. In the event O&R’s credit rating was downgraded to BBB- or lower by S&P or Baa3 or lower by Moody’s, the swap counterparty could elect to terminate the agreement and, if it did so, the parties would then be required to settle the transaction. |
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CECONY [Member]
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| Derivative Instruments and Hedging Activities | Note O — Derivative Instruments and Hedging Activities Under the accounting rules for derivatives and hedging, derivatives are recognized on the balance sheet at fair value, unless an exception is available under the accounting rules. Certain qualifying derivative contracts have been designated as normal purchases or normal sales contracts. These contracts are not reported at fair value under the accounting rules. Energy Price Hedging 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. Effective January 1, 2013, the Companies adopted Accounting Standards Updates (ASUs) No. 2011-11, “Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities” and No. 2013-01, “Balance Sheet (Topic 210): Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities”. The amendments require the Companies to disclose certain quantitative information concerning financial and derivative instruments that are offset in the balance sheet and a description of the rights of setoff, including the nature of such rights, associated with recognized assets and liabilities that are subject to an enforceable master netting arrangement or similar agreement. The Companies enter into master agreements for their commodity derivatives. These agreements typically provide setoff in the event of contract termination. In such case, generally the non-defaulting or non-affected party’s payable will be set-off by the other party’s payable. The non-defaulting party will customarily notify the defaulting party within a specific time period and come to an agreement on the early termination amount.
The fair values of the Companies’ commodity derivatives including the offsetting of assets and liabilities at December 31, 2013 were:
The fair values of the Companies’ commodity derivatives including the offsetting of assets and liabilities at December 31, 2012 were:
Credit Exposure 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, 2013, Con Edison and CECONY had $164 million and $20 million of credit exposure in connection with energy supply and hedging activities, net of collateral, respectively. Con Edison’s net credit exposure consisted of $84 million with independent system operators, $46 million with commodity exchange brokers, $33 million with investment-grade counterparties and $1 million with non-investment grade/non-rated counterparties. CECONY’s net credit exposure consisted of $17 million with commodity exchange brokers and $3 million with investment-grade counterparties. Economic Hedges The Companies enter into certain derivative instruments that do not qualify or are not designated as hedges under the accounting rules for derivatives and hedging. However, management believes these instruments represent economic hedges that mitigate exposure to fluctuations in commodity prices.
The fair values of the Companies’ commodity derivatives at December 31, 2013 were:
The fair values of the Companies’ commodity derivatives at December 31, 2012 were:
The Utilities generally recover all of their prudently incurred fuel, purchased power and gas cost, including hedging gains and losses, in accordance with rate provisions approved by the applicable state utility commissions. 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 earnings in the reporting period in which they occur.
The following table presents the changes in the fair values of commodity derivatives that have been deferred or recognized in earnings for the year ended December 31, 2013:
The following table presents the changes in the fair values of commodity derivatives that have been deferred or recognized in earnings for the year ended December 31, 2012:
As of December 31, 2013, Con Edison had 1,116 contracts, including 547 CECONY contracts, which were considered to be derivatives under the accounting rules for derivatives and hedging (excluding qualifying derivative contracts, which have been designated as normal purchases or normal sales contracts). The following table presents the number of contracts by commodity type:
The Companies also enter into electric congestion and gas basis swap contracts to hedge the congestion and transportation charges which are associated with electric and gas contracts and hedged volumes. 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 the Companies to provide collateral on derivative instruments in net liability positions. The amount of collateral to be provided will depend on the fair value of the derivative instruments and the Companies’ credit ratings. The aggregate fair value of all derivative instruments with credit-risk-related contingent features that are in a net liability position and collateral posted at December 31, 2013, 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 were:
Interest Rate Swap O&R has an interest rate swap, which terminates in October 2014, pursuant to which it pays a fixed-rate of 6.09 percent and receives a LIBOR-based variable rate. The fair value of this interest rate swap at December 31, 2013 was an unrealized loss of $2 million, which has been included in Con Edison’s consolidated balance sheet as a current liability/fair value of derivative liabilities and a regulatory asset. The increase in the fair value of the swap for the year ended December 31, 2013 was $4 million. In the event O&R’s credit rating was downgraded to BBB- or lower by S&P or Baa3 or lower by Moody’s, the swap counterparty could elect to terminate the agreement and, if it did so, the parties would then be required to settle the transaction. |
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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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Dec. 31, 2013
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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 as of December 31, 2013 are summarized below.
Assets and liabilities measured at fair value on a recurring basis as of December 31, 2012 are summarized below.
The employees in the risk management groups of the Utilities and the competitive energy businesses 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 managers of the risk management groups report 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, 2013 and 2012 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 commissions. 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 ($2 million loss and $12 million loss) and purchased power costs ($5 million gain and $46 million loss) on the consolidated income statement for the years ended December 31, 2013 and 2012, respectively. The change in fair value relating to Level 3 commodity derivative assets and liabilities held at December 31, 2013 and 2012 is included in non-utility revenues ($2 million loss and $12 million loss), and purchased power costs ($3 million gain and $46 million gain) on the consolidated income statement for the years ended December 31, 2013 and 2012, respectively. The accounting rules for fair value measurements and disclosures require consideration of the impact of nonperformance risk (including credit risk) from a market participant perspective in the measurement of the fair value of assets and liabilities. At December 31, 2013, the Companies determined that nonperformance risk would have no material impact on their financial position or results of operations. To assess nonperformance risk, the Companies considered information such as collateral requirements, master netting arrangements, letters of credit and parent company guarantees, and applied a market-based method by using the counterparty (for an asset) or the Companies’ (for a liability) credit default swaps rates. |
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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 as of December 31, 2013 are summarized below.
Assets and liabilities measured at fair value on a recurring basis as of December 31, 2012 are summarized below.
The employees in the risk management groups of the Utilities and the competitive energy businesses 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 managers of the risk management groups report 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, 2013 and 2012 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 commissions. 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 ($2 million loss and $12 million loss) and purchased power costs ($5 million gain and $46 million loss) on the consolidated income statement for the years ended December 31, 2013 and 2012, respectively. The change in fair value relating to Level 3 commodity derivative assets and liabilities held at December 31, 2013 and 2012 is included in non-utility revenues ($2 million loss and $12 million loss), and purchased power costs ($3 million gain and $46 million gain) on the consolidated income statement for the years ended December 31, 2013 and 2012, respectively. The accounting rules for fair value measurements and disclosures require consideration of the impact of nonperformance risk (including credit risk) from a market participant perspective in the measurement of the fair value of assets and liabilities. At December 31, 2013, the Companies determined that nonperformance risk would have no material impact on their financial position or results of operations. To assess nonperformance risk, the Companies considered information such as collateral requirements, master netting arrangements, letters of credit and parent company guarantees, and applied a market-based method by using the counterparty (for an asset) or the Companies’ (for a liability) credit default swaps rates. |
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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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12 Months Ended |
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Dec. 31, 2013
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| Variable Interest Entities | Note Q – Variable Interest Entities The Companies have not identified any interests they have in any variable interest entity (VIE) that would require the Companies to include the financial position and results of operations of the VIE in the Companies’ consolidated financial statements. The accounting rules for consolidation address the consolidation of a 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 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 the 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 five potential VIEs: Sithe/Independence Power Partners, LP, Cogen Technologies Linden Venture, LP, Selkirk Cogen Partners, LP, Brooklyn Navy Yard Cogeneration Partners, LP, and Indeck Energy Services of Corinth, Inc. In 2013, requests were made of these five 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 Astoria Energy and the five potential VIEs. Con Edison has a variable interest in a non-consolidated VIE, Pilesgrove Solar, LLC (Pilesgrove), in which Con Edison Development, starting in 2010, participated with a third party to develop, construct, and operate a photovoltaic solar energy project. The project was constructed for approximately $90 million and commenced commercial operation in August 2011. Con Edison is not the primary beneficiary of this VIE since the power to direct the activities that most significantly impact the economics of Pilesgrove is shared equally between Con Edison Development and the third party. Included in the Con Edison’s consolidated balance sheet at December 31, 2013 is $25 million in assets related to Pilesgrove which represents Con Edison Development’s investment including earnings in Pilesgrove and is the current maximum exposure to loss in Pilesgrove. Con Edison has variable interests in Copper Mountain Solar 2 Holdings, LLC (CMS 2) and Mesquite Solar 1 Holdings, LLC (MS 1), non-consolidated entities in which Con Edison Development purchased a 50 percent membership interest in 2013. CMS 2 owns a project company that is developing a 150 MW (AC) solar energy project (with 92 MW currently in service) in Nevada. MS 1 owns a project company that owns a 150 MW (AC) solar energy project in Arizona. Electricity generated by the projects is sold to Pacific Gas and Electric Company pursuant to long-term power purchase agreements. Con Edison is not the primary beneficiary of these variable interest entities since the power to direct the activities that most significantly impact the economics of CMS 2 and MS 1 is shared equally between Con Edison Development and a third party. At December 31, 2013, Con Edison’s consolidated balance sheet includes $75 million and $104 million in investments (including earnings) related to CMS 2 and MS 1, respectively, which assessed in accordance with the accounting rules for variable interest entities, is Con Edison’s current maximum exposure to loss in the entities. In addition, Con Edison and Con Edison Development have issued certain guarantees to third parties in connection with the CMS 2 and MS 1 projects. See “Guarantees” in Note H. |
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CECONY [Member]
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| Variable Interest Entities | Note Q – Variable Interest Entities The Companies have not identified any interests they have in any variable interest entity (VIE) that would require the Companies to include the financial position and results of operations of the VIE in the Companies’ consolidated financial statements. The accounting rules for consolidation address the consolidation of a 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 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 the 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 five potential VIEs: Sithe/Independence Power Partners, LP, Cogen Technologies Linden Venture, LP, Selkirk Cogen Partners, LP, Brooklyn Navy Yard Cogeneration Partners, LP, and Indeck Energy Services of Corinth, Inc. In 2013, requests were made of these five 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 Astoria Energy and the five potential VIEs. Con Edison has a variable interest in a non-consolidated VIE, Pilesgrove Solar, LLC (Pilesgrove), in which Con Edison Development, starting in 2010, participated with a third party to develop, construct, and operate a photovoltaic solar energy project. The project was constructed for approximately $90 million and commenced commercial operation in August 2011. Con Edison is not the primary beneficiary of this VIE since the power to direct the activities that most significantly impact the economics of Pilesgrove is shared equally between Con Edison Development and the third party. Included in the Con Edison’s consolidated balance sheet at December 31, 2013 is $25 million in assets related to Pilesgrove which represents Con Edison Development’s investment including earnings in Pilesgrove and is the current maximum exposure to loss in Pilesgrove. Con Edison has variable interests in Copper Mountain Solar 2 Holdings, LLC (CMS 2) and Mesquite Solar 1 Holdings, LLC (MS 1), non-consolidated entities in which Con Edison Development purchased a 50 percent membership interest in 2013. CMS 2 owns a project company that is developing a 150 MW (AC) solar energy project (with 92 MW currently in service) in Nevada. MS 1 owns a project company that owns a 150 MW (AC) solar energy project in Arizona. Electricity generated by the projects is sold to Pacific Gas and Electric Company pursuant to long-term power purchase agreements. Con Edison is not the primary beneficiary of these variable interest entities since the power to direct the activities that most significantly impact the economics of CMS 2 and MS 1 is shared equally between Con Edison Development and a third party. At December 31, 2013, Con Edison’s consolidated balance sheet includes $75 million and $104 million in investments (including earnings) related to CMS 2 and MS 1, respectively, which assessed in accordance with the accounting rules for variable interest entities, is Con Edison’s current maximum exposure to loss in the entities. In addition, Con Edison and Con Edison Development have issued certain guarantees to third parties in connection with the CMS 2 and MS 1 projects. See “Guarantees” in Note H. |
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- Definition
Variable Interest Entities Disclosure [Text Block] No definition available.
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Asset Retirement Obligations
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2013
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| Asset Retirement Obligations | Note R – Asset Retirement Obligations The Companies account for retirement obligations on their assets in accordance with the accounting rules for asset retirement obligations. The Companies recorded asset retirement obligations associated with the removal of asbestos and asbestos-containing material in their buildings (other than generating station and substation building structures themselves), electric equipment, and steam and gas distribution systems. The Companies also recorded asset retirement obligations relating to gas pipelines abandoned in place. The estimates of future liabilities were developed using historical information, and where available, quoted prices from outside contractors. The Companies did not record an asset retirement obligation for the removal of asbestos associated with the generating station and substation building structures themselves. 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. The accrued liability for asset retirement obligations and the regulatory liabilities for allowance for cost of removal less salvage for the Companies at December 31, 2013 and 2012 were as follows:
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CECONY [Member]
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| Asset Retirement Obligations | Note R – Asset Retirement Obligations The Companies account for retirement obligations on their assets in accordance with the accounting rules for asset retirement obligations. The Companies recorded asset retirement obligations associated with the removal of asbestos and asbestos-containing material in their buildings (other than generating station and substation building structures themselves), electric equipment, and steam and gas distribution systems. The Companies also recorded asset retirement obligations relating to gas pipelines abandoned in place. The estimates of future liabilities were developed using historical information, and where available, quoted prices from outside contractors. The Companies did not record an asset retirement obligation for the removal of asbestos associated with the generating station and substation building structures themselves. 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. The accrued liability for asset retirement obligations and the regulatory liabilities for allowance for cost of removal less salvage for the Companies at December 31, 2013 and 2012 were as follows:
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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, 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, 2013, 2012, and 2011 were as follows:
In addition, CECONY and O&R have joint gas supply arrangements, in connection with which CECONY sold to O&R $123 million, $54 million and $81 million of natural gas for the years ended December 31, 2013, 2012, and 2011, 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, 2013 and 2012. |
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CECONY [Member]
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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, 2013, 2012, and 2011 were as follows:
In addition, CECONY and O&R have joint gas supply arrangements, in connection with which CECONY sold to O&R $123 million, $54 million and $81 million of natural gas for the years ended December 31, 2013, 2012, and 2011, 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, 2013 and 2012. |
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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, 2013
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| New Financial Accounting Standards | Note T – New Financial Accounting Standards In December 2011 and January 2013, the Financial Accounting Standards Board (FASB) issued amendments to address and clarify the scope of the balance sheet off-setting disclosure guidance within Accounting Standards Codification (ASC) 210, “Balance Sheet.” ASU No. 2011-11 and ASU No. 2013-01, “Balance Sheet (Topic 210): Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities,” provide guidance that requires a reporting entity to disclose certain quantitative information concerning financial and derivative instruments that are offset in the balance sheet and a description of the rights of setoff, including the nature of such rights, associated with recognized assets and liabilities that are subject to an enforceable master netting arrangement or similar agreement. ASU No. 2013-01 clarifies that financial instruments subject to the disclosure guidance are (1) derivatives accounted for in accordance with ASC 815, Derivatives and Hedging, (2) repurchase agreements and reverse purchase agreements and (3) securities borrowing and securities lending transactions that are either offset in accordance with ASC Section 210-20-45 or Section 815-10-45 or subject to an enforceable master netting arrangement or similar agreement. A reporting entity electing gross presentation of such assets and liabilities in its balance sheet will still be subject to the same disclosure requirements. Both ASUs are applicable for fiscal years beginning on or after January 1, 2013, interim periods within those fiscal years, and retrospectively for all comparative periods presented. The application of this guidance does not have a material impact on the Companies’ financial position, results of operations and liquidity. See Note O. In February 2013, the FASB issued amendments to improve the reporting of reclassifications out of accumulated OCI through ASU No. 2013-02, “Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.” The amendments require an entity to provide information either on the face of the financial statements or in a single footnote on significant amounts reclassified out of accumulated OCI and the related income statement line items to the extent an amount is reclassified in its entirety to net income under U.S. GAAP. For significant items not reclassified to net income in their entirety, an entity is required to cross-reference to other disclosures that provide additional information. For public entities, the amendments are effective prospectively for reporting periods beginning after December 15, 2012. The application of this guidance does not have a material impact on the Companies’ financial position, results of operations and liquidity. See Note A. In July 2013, the FASB issued ASU No. 2013-10, “Derivatives and Hedging (Topic 815): Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes (a consensus of the FASB Emerging Issues Task Force).” The new guidance permits designating the Federal Funds Effective Swap Rate as a benchmark interest rate for hedge accounting. Previously, only the U.S. Treasury and LIBOR rates were allowed under the hedge accounting rules in U.S. GAAP. The new guidance also eliminates the restriction on using different benchmark interest rates for similar hedges. The amendments are effective prospectively for qualifying new or redesignated hedging relationships entered into on or after July 17, 2013. The application of this guidance does not have a material impact on the Companies’ financial position, results of operations and liquidity. In July 2013, the FASB issued ASU No. 2013-11, “Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit when a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists (a Consensus of the FASB Emerging Issues Task Force).” The amendments require a liability related to an unrecognized tax benefit to be presented on a net basis with its associated deferred tax asset when utilization of such deferred tax assets is required or expected in the event the uncertain tax position is disallowed. Otherwise, the unrecognized tax benefit will be presented as a liability and will not be netted against deferred tax assets. For public entities, the amendments are effective prospectively for fiscal years, and interim periods within those years, beginning after December 15, 2013. The application of this guidance is not expected to have a material impact on the Companies’ financial position, results of operations and liquidity. See Note L. |
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CECONY [Member]
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| New Financial Accounting Standards | Note T – New Financial Accounting Standards In December 2011 and January 2013, the Financial Accounting Standards Board (FASB) issued amendments to address and clarify the scope of the balance sheet off-setting disclosure guidance within Accounting Standards Codification (ASC) 210, “Balance Sheet.” ASU No. 2011-11 and ASU No. 2013-01, “Balance Sheet (Topic 210): Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities,” provide guidance that requires a reporting entity to disclose certain quantitative information concerning financial and derivative instruments that are offset in the balance sheet and a description of the rights of setoff, including the nature of such rights, associated with recognized assets and liabilities that are subject to an enforceable master netting arrangement or similar agreement. ASU No. 2013-01 clarifies that financial instruments subject to the disclosure guidance are (1) derivatives accounted for in accordance with ASC 815, Derivatives and Hedging, (2) repurchase agreements and reverse purchase agreements and (3) securities borrowing and securities lending transactions that are either offset in accordance with ASC Section 210-20-45 or Section 815-10-45 or subject to an enforceable master netting arrangement or similar agreement. A reporting entity electing gross presentation of such assets and liabilities in its balance sheet will still be subject to the same disclosure requirements. Both ASUs are applicable for fiscal years beginning on or after January 1, 2013, interim periods within those fiscal years, and retrospectively for all comparative periods presented. The application of this guidance does not have a material impact on the Companies’ financial position, results of operations and liquidity. See Note O. In February 2013, the FASB issued amendments to improve the reporting of reclassifications out of accumulated OCI through ASU No. 2013-02, “Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.” The amendments require an entity to provide information either on the face of the financial statements or in a single footnote on significant amounts reclassified out of accumulated OCI and the related income statement line items to the extent an amount is reclassified in its entirety to net income under U.S. GAAP. For significant items not reclassified to net income in their entirety, an entity is required to cross-reference to other disclosures that provide additional information. For public entities, the amendments are effective prospectively for reporting periods beginning after December 15, 2012. The application of this guidance does not have a material impact on the Companies’ financial position, results of operations and liquidity. See Note A. In July 2013, the FASB issued ASU No. 2013-10, “Derivatives and Hedging (Topic 815): Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes (a consensus of the FASB Emerging Issues Task Force).” The new guidance permits designating the Federal Funds Effective Swap Rate as a benchmark interest rate for hedge accounting. Previously, only the U.S. Treasury and LIBOR rates were allowed under the hedge accounting rules in U.S. GAAP. The new guidance also eliminates the restriction on using different benchmark interest rates for similar hedges. The amendments are effective prospectively for qualifying new or redesignated hedging relationships entered into on or after July 17, 2013. The application of this guidance does not have a material impact on the Companies’ financial position, results of operations and liquidity. In July 2013, the FASB issued ASU No. 2013-11, “Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit when a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists (a Consensus of the FASB Emerging Issues Task Force).” The amendments require a liability related to an unrecognized tax benefit to be presented on a net basis with its associated deferred tax asset when utilization of such deferred tax assets is required or expected in the event the uncertain tax position is disallowed. Otherwise, the unrecognized tax benefit will be presented as a liability and will not be netted against deferred tax assets. For public entities, the amendments are effective prospectively for fiscal years, and interim periods within those years, beginning after December 15, 2013. The application of this guidance is not expected to have a material impact on the Companies’ financial position, results of operations and liquidity. See Note L. |
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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, 2013
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| Condensed Financial Information Of Parent Company Only Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule I - Condensed Financial Information | 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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- 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, 2013
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| Valuation And Qualifying Accounts [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule II - Valuation and Qualifying Accounts | Schedule II Valuation and Qualifying Accounts For the Years Ended December 31, 2013, 2012 and 2011
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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, 2013
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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. Accounting Policies The accounting policies of Con Edison and its subsidiaries conform to accounting principles generally accepted in the United States of America. 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 public utility regulatory commissions 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 public utility regulatory commission. 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 (AFDC). 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 AFDC 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 AFDC rates for CECONY were 4.0 percent, 6.5 percent and 6.9 percent for 2013, 2012, and 2011, respectively. The AFDC rates for O&R were 5.7 percent, 7.0 percent and 6.6 percent for 2013, 2012, and 2011, 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 rate for CECONY was 3.2 percent for 2013 and 3.1 percent for 2012, and 2011. The average depreciation rates for O&R were 2.8 percent, 2.9 percent and 2.8 percent for 2013, 2012, and 2011, respectively. The estimated lives for utility plant for CECONY range from 5 to 80 years for electric, 5 to 85 years for gas, 5 to 70 years for steam and 5 to 50 years for general plant. For O&R, the estimated lives for utility plant range from 5 to 75 years for electric, 5 to 75 years for gas and 5 to 50 years for general plant. At December 31, 2013 and 2012, 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, 2013 was $948 million, including $897 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 and consists primarily of land, gas storage and solar facilities that are currently not used within electric, gas or steam utility operations. 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 In accordance with the accounting rules for goodwill and intangible assets, Con Edison is required to test goodwill for impairment 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 In accordance with the accounting rules for impairment or disposal of long-lived assets, the Companies evaluate 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 2013, 2012 or 2011. |
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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. |
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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 commissions. 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 are generally deferred for charge or refund to customers during the next billing cycle (normally within one or two months). In addition, CECONY recovers the costs of its electric demand management programs, in excess of the costs reflected in rates, as part of recoverable energy costs. 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) or accounted for as leveraged leases in accordance with the accounting rules for leases. See Note J for a discussion of investments in Lease In/Lease Out transactions. Utilities’ investments are recorded at fair value and include the deferred income plan and supplemental retirement income plan 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 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 of the group pays or receives an amount 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 In accordance with the accounting rules for earnings per 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, 2013 and 2012 exclude immaterial amounts of performance share awards which were not included because of their anti-dilutive effect. No such exclusions were required for the computation of diluted EPS for the year ended December 31, 2011. |
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| Estimates | Estimates The preparation of financial statements in conformity with generally accepted accounting principles 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 For 2013, changes to accumulated other comprehensive income (OCI) for Con Edison and CECONY are as follows:
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Accumulated Other Comprehensive Income Policy [Text Block] No definition available.
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Reclassification [Policy Text Block] 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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- Definition
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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| X | ||||||||||
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- Definition
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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| X | ||||||||||
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- Definition
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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| X | ||||||||||
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- Definition
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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| X | ||||||||||
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- Definition
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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| X | ||||||||||
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- Definition
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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| X | ||||||||||
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- Definition
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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| X | ||||||||||
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- Definition
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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| X | ||||||||||
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- Definition
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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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2013
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| Accounting Policies [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Capitalized Cost of Utility Plant | At December 31, 2013 and 2012, the capitalized cost of the Companies’ utility plant, net of accumulated depreciation, was 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 | For 2013, 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 Research And Development Expense Table [Text Block] 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 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, 2013
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| Regulatory Assets and Liabilities | Regulatory Assets and Liabilities Regulatory assets and liabilities at December 31, 2013 and 2012 were comprised of the following items:
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CECONY-Electric [Member]
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| Schedule of Regulatory Liability Revenue Requirement Impact | The amounts reflected in rates were:
The amounts reflected in rates are:
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CECONY-Gas [Member]
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| Schedule of Regulatory Liability Revenue Requirement Impact | The amounts reflected in rates are:
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CECONY-Steam [Member]
|
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| Schedule of Regulatory Liability Revenue Requirement Impact | The amounts reflected in rates are:
The amounts reflected in rates are:
|
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| X | ||||||||||
|
- Definition
Schedule Of Regulatory Assets And Liabilities Table [Text Block] No definition available.
|
| X | ||||||||||
|
- Definition
Tabular disclosure of regulatory liabilities. Detailed information about liabilities that result from rate actions of a regulator. Rate actions of a regulator can impose a liability on a regulated enterprise resulting in a regulatory liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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|
Capitalization (Tables)
|
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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|
Dec. 31, 2013
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| Regulated Operations [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Long-Term Debt Maturities | Long-term Debt Long-term debt maturing in the period 2014-2018 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 are:
|
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| X | ||||||||||
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- Details
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| X | ||||||||||
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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.
|
| X | ||||||||||
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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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|
Pension Benefits (Tables) (Pension Benefits [Member])
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2013
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|
Pension Benefits [Member]
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| Companies' Net Periodic Benefit Costs | The components of the Companies’ net periodic benefit costs for 2013, 2012, and 2011 were as follows:
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| Schedule of Funded Status | The funded status at December 31, 2013, 2012, and 2011 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 2013, 2012, and 2011, and the target allocation for 2014 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, 2013 by asset category are as follows:
The fair values of the pension plan assets at December 31, 2012 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, 2013 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, 2012 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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| X | ||||||||||
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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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| X | ||||||||||
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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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| X | ||||||||||
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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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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2013
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Other Postretirement Benefits [Member]
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| Net Periodic Postretirement Benefit Costs | The components of the Companies’ net periodic postretirement benefit costs for 2013, 2012, and 2011 were as follows:
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| Schedule of Funded Status | The funded status of the programs at December 31, 2013, 2012, and 2011 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, 2014:
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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 2013, 2012 and 2011, and the target allocation for 2014 are as follows:
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| Schedule of Fair Values of Plan Assets | The fair values of the plan assets at December 31, 2013 by asset category (see description of levels in Note E) are as follows:
The fair values of the plan assets at December 31, 2012 by asset category (see description of levels in Note E) 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, 2013 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, 2012 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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| X | ||||||||||
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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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| X | ||||||||||
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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, 2013
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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, 2013 and 2012 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, 2013 and 2012 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, 2013 and 2012 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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Other Material Contingencies (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2013
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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, 2013 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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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2013
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| Regulated Operations [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of Significant Terms of Electricity Purchase Agreements | At December 31, 2013, 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 2013, 2012, and 2011 were as follows:
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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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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2013
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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, 2013 and 2012:
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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 is as follows:
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Components Of Income From Leveraged Lease Table [Text Block] No definition available.
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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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- 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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- 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, 2013
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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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- 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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| X | ||||||||||
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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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| X | ||||||||||
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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, 2013
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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, 2013, 2012, and 2011:
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| Summary of Status of Stock Options Awarded | A summary of changes in the status of stock options awarded as of December 31, 2013 is as follows:
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| Summary of Stock Options Outstanding | The following table summarizes stock options outstanding at December 31, 2013 for each plan year for the Companies:
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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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Time Based Awards [Member]
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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, 2013 is as follows:
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TSR Portion [Member]
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| Summary of Changes in Status of Performance RSUs' | A summary of changes in the status of the Performance RSUs’ TSR portion during the year ended December 31, 2013 is as follows:
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EIP Portion [Member]
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| Summary of Changes in Status of Performance RSUs' | A summary of changes in the status of the Performance RSUs’ EIP portion during the year ended December 31, 2013 is as follows:
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- Definition
Summary of changes in the status of performance RSU's No definition available.
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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 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, 2013
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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, 2013
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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 at December 31, 2013 were:
The fair values of the Companies’ commodity derivatives including the offsetting of assets and liabilities at December 31, 2012 were:
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| Fair Values of Companies' Commodity Derivatives | The fair values of the Companies’ commodity derivatives at December 31, 2013 were:
The fair values of the Companies’ commodity derivatives at December 31, 2012 were:
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| Changes in Fair Values of Commodity Derivatives | The following table presents the changes in the fair values of commodity derivatives that have been deferred or recognized in earnings for the year ended December 31, 2013:
The following table presents the changes in the fair values of commodity derivatives that have been deferred or recognized in earnings for the year ended December 31, 2012:
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| Number of Derivative Contracts by Commodity Type | The following table presents the number of contracts by commodity type:
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| Aggregate Fair Value of All Derivative Instruments with Credit-Risk-Related Contingent Features | The aggregate fair value of all derivative instruments with credit-risk-related contingent features that are in a net liability position and collateral posted at December 31, 2013, 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 were:
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Schedule of Fair Value of Derivative Assets and Liabilities Offsetting In Balance Sheet [Table Text Block] No definition available.
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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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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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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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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, 2013
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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 as of December 31, 2013 are summarized below.
Assets and liabilities measured at fair value on a recurring basis as of December 31, 2012 are summarized below.
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| Schedule of Commodity Derivatives | The managers of the risk management groups report 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, 2013 and 2012 and classified as Level 3 in the fair value hierarchy:
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Fair Value Assets Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Table [Text Block] No definition available.
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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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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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Asset Retirement Obligations (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2013
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| Asset Retirement Obligation Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accrued Liability for Asset Retirement Obligations and Regulatory Liabilities | The accrued liability for asset retirement obligations and the regulatory liabilities for allowance for cost of removal less salvage for the Companies at December 31, 2013 and 2012 were as follows:
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Schedule of Accrued Liability for Asset Retirement Obligations and Regulatory Liabilities for Allowance for Cost [Table Text Block] No definition available.
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Related Party Transactions (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2013
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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, 2013, 2012, and 2011 were as follows:
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Schedule Of Related Party Transactions Services Received And Provided By Company Table [Text Block] No definition available.
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Consolidated Statement of Capitalization - Long term Debt (Detail) (USD $)
In Millions, unless otherwise specified |
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Dec. 31, 2013
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Dec. 31, 2012
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| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| TOTAL DEBENTURES | $ 9,310 | $ 9,310 | ||||||
| TOTAL TRANSITION BONDS | 22 | 25 | ||||||
| TOTAL TAX-EXEMPT DEBT | 1,130 | 1,130 | ||||||
| Other long-term debt | 532 | 319 | ||||||
| Unamortized debt discount | (20) | (16) | ||||||
| TOTAL | 10,974 | 10,768 | ||||||
| Less: long-term debt due within one year | 485 | 706 | ||||||
| TOTAL LONG-TERM DEBT | 10,489 | 10,062 | ||||||
| TOTAL CAPITALIZATION | 22,734 | 21,931 | ||||||
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CECONY [Member]
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| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| TOTAL DEBENTURES | 8,775 | 8,775 | ||||||
| TOTAL TAX-EXEMPT DEBT | 1,086 | [1] | 1,086 | [1] | ||||
| Unamortized debt discount | (20) | [1] | (16) | [1] | ||||
| TOTAL | 9,841 | [1] | 9,845 | [1] | ||||
| Less: long-term debt due within one year | 475 | [1] | 700 | [1] | ||||
| TOTAL LONG-TERM DEBT | 9,366 | [1] | 9,145 | [1] | ||||
| TOTAL CAPITALIZATION | 20,213 | [1] | 19,697 | [1] | ||||
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Debenture Series 2002B, 4.875% Due 2013 [Member]
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| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 500 | |||||||
| Interest Rate | 4.875% | |||||||
| Maturity Date | 2013 | |||||||
|
Debenture Series 2002B, 4.875% Due 2013 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 500 | |||||||
| Interest Rate | 4.875% | |||||||
| Maturity Date | 2013 | |||||||
|
Debenture Series 2003B, 3.85% Due 2013 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 200 | |||||||
| Interest Rate | 3.85% | |||||||
| Maturity Date | 2013 | |||||||
|
Debenture Series 2003B, 3.85% Due 2013 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 200 | |||||||
| Interest Rate | 3.85% | |||||||
| Maturity Date | 2013 | |||||||
|
Debenture Series 2004A, 4.70% Due 2014 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 200 | 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 | 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 | 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 | 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 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 | |||||||
| 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 | |||||||
| Interest Rate | 3.95% | |||||||
| Maturity Date | 2043 | |||||||
|
Debenture Series 2004-1, 5.22% Due 2019 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 22 | [2] | 25 | [2] | ||||
| Interest Rate | 5.22% | [2] | ||||||
| Maturity Date | 2019 | [2] | ||||||
|
Debenture Series 1995, 0.11% Due 2015 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 44 | [1] | 44 | [1] | ||||
| Interest Rate | 0.11% | [1] | ||||||
| Maturity Date | 2015 | [1] | ||||||
|
Tax Exempt Debt Series 2004B-1, 0.11% Due 2032 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 127 | [1] | 127 | [1] | ||||
| Interest Rate | 0.11% | [1] | ||||||
| Maturity Date | 2032 | [1] | ||||||
|
Tax Exempt Debt Series 2004B-1, 0.11% Due 2032 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 127 | [1] | 127 | [1] | ||||
| Interest Rate | 0.11% | [1] | ||||||
| Maturity Date | 2032 | [1] | ||||||
|
Tax-Exempt Debt Series 1999A, 0.10% Due 2034 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 293 | [1] | 293 | [1] | ||||
| Interest Rate | 0.10% | [1] | ||||||
| Maturity Date | 2034 | [1] | ||||||
|
Tax-Exempt Debt Series 1999A, 0.10% Due 2034 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 293 | [1] | 293 | [1] | ||||
| Interest Rate | 0.10% | [1] | ||||||
| Maturity Date | 2034 | [1] | ||||||
|
Tax Exempt Debt Series 2004B-2, 0.11% Due 2035 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 20 | [1] | 20 | [1] | ||||
| Interest Rate | 0.11% | [1] | ||||||
| Maturity Date | 2035 | [1] | ||||||
|
Tax Exempt Debt Series 2004B-2, 0.11% Due 2035 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 20 | [1] | 20 | [1] | ||||
| Interest Rate | 0.11% | [1] | ||||||
| Maturity Date | 2035 | [1] | ||||||
|
Tax-Exempt Debt Series 2001B, 0.09% Due 2036 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 98 | [1] | 98 | [1] | ||||
| Interest Rate | 0.09% | [1] | ||||||
| Maturity Date | 2036 | [1] | ||||||
|
Tax-Exempt Debt Series 2001B, 0.09% Due 2036 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 98 | [1] | 98 | [1] | ||||
| Interest Rate | 0.09% | [1] | ||||||
| Maturity Date | 2036 | [1] | ||||||
|
Tax-Exempt Debt Series 2010A, 0.05% Due 2036 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 225 | [1] | 225 | [1] | ||||
| Interest Rate | 0.05% | [1] | ||||||
| Maturity Date | 2036 | [1] | ||||||
|
Tax-Exempt Debt Series 2010A, 0.05% Due 2036 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 225 | [1] | 225 | [1] | ||||
| Interest Rate | 0.05% | [1] | ||||||
| Maturity Date | 2036 | [1] | ||||||
|
Tax-Exempt Debt Series 2004A, 0.09% Due 2039 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 98 | [1] | 98 | [1] | ||||
| Interest Rate | 0.09% | [1] | ||||||
| Maturity Date | 2039 | [1] | ||||||
|
Tax-Exempt Debt Series 2004A, 0.09% Due 2039 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 98 | [1] | 98 | [1] | ||||
| Interest Rate | 0.09% | [1] | ||||||
| Maturity Date | 2039 | [1] | ||||||
|
Tax-Exempt Debt Series 2004C, 0.05% Due 2039 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 99 | 99 | ||||||
| Interest Rate | 0.05% | [1] | ||||||
| Maturity Date | 2039 | [1] | ||||||
|
Tax-Exempt Debt Series 2004C, 0.05% Due 2039 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 99 | [1] | 99 | [1] | ||||
| Interest Rate | 0.05% | [1] | ||||||
| Maturity Date | 2039 | [1] | ||||||
|
Tax-Exempt Debt Series 2005A, 0.04% Due 2039 [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | 126 | 126 | ||||||
| Interest Rate | 0.04% | [1] | ||||||
| Maturity Date | 2039 | [1] | ||||||
|
Tax-Exempt Debt Series 2005A, 0.04% Due 2039 [Member] | CECONY [Member]
|
||||||||
| Schedule of Capitalization, Long-term Debt [Line Items] | ||||||||
| Debt Instrument, Fair Value | $ 126 | [1] | $ 126 | [1] | ||||
| Interest Rate | 0.04% | [1] | ||||||
| Maturity Date | 2039 | [1] | ||||||
|
||||||||
| X | ||||||||||
|
- Definition
Debentures, Total No definition available.
|
| X | ||||||||||
|
- Definition
Tax-Exempt Debt, Total No definition available.
|
| X | ||||||||||
|
- 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.
|
| X | ||||||||||
|
- 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
|
| X | ||||||||||
|
- Definition
Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- 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
|
| X | ||||||||||
|
- 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
|
| 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
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
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
|
| X | ||||||||||
|
- 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
|
| X | ||||||||||
|
- Details
|
|
Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
Y
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Summary Of Significant Accounting Policies [Line Items] | |||
| Annual aggregate depreciation allowance | $ 948 | ||
| Impairment charges | 0 | 0 | 0 |
| Investment gains and losses recognized, time period, years | 15 | ||
| Other actuarial gains and losses recognized, time period, years | 10 | ||
| Difference between fair value and expected Market Related Value of plan assets | 20.00% | ||
|
Minimum [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives,(years) | 3 years | ||
|
Maximum [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives,(years) | 30 years | ||
|
CECONY [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| AFDC rates | 4.00% | 6.50% | 6.90% |
| Average depreciation rate | 3.20% | 3.10% | 3.10% |
| Annual aggregate depreciation allowance | $ 897 | ||
|
CECONY [Member] | Electric [Member] | Minimum [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives,(years) | 5 years | ||
|
CECONY [Member] | Electric [Member] | Maximum [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives,(years) | 80 years | ||
|
CECONY [Member] | Gas [Member] | Minimum [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives,(years) | 5 years | ||
|
CECONY [Member] | Gas [Member] | Maximum [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives,(years) | 85 years | ||
|
CECONY [Member] | Steam [Member] | Minimum [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives,(years) | 5 years | ||
|
CECONY [Member] | Steam [Member] | Maximum [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives,(years) | 70 years | ||
|
CECONY [Member] | General [Member] | Minimum [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives,(years) | 5 years | ||
|
CECONY [Member] | General [Member] | Maximum [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives,(years) | 50 years | ||
|
O&R [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| AFDC rates | 5.70% | 7.00% | 6.60% |
| Average depreciation rate | 2.80% | 2.90% | 2.80% |
|
O&R [Member] | Electric [Member] | Minimum [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives,(years) | 5 years | ||
|
O&R [Member] | Electric [Member] | Maximum [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives,(years) | 75 years | ||
|
O&R [Member] | Gas [Member] | Minimum [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives,(years) | 5 years | ||
|
O&R [Member] | Gas [Member] | Maximum [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives,(years) | 75 years | ||
|
O&R [Member] | General [Member] | Minimum [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives,(years) | 5 years | ||
|
O&R [Member] | General [Member] | Maximum [Member]
|
|||
| Summary Of Significant Accounting Policies [Line Items] | |||
| Estimated useful lives,(years) | 50 years | ||
| X | ||||||||||
|
- Definition
Actuarial gains and losses recognized, time period No definition available.
|
| X | ||||||||||
|
- Definition
Difference between fair value and expected market related value of plan assets No definition available.
|
| X | ||||||||||
|
- Definition
Investment gains and losses recognized time period No definition available.
|
| X | ||||||||||
|
- Definition
Public Utilities, Depreciation Allowance, Current Rate Plans No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- 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
|
| X | ||||||||||
|
- 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.
|
| X | ||||||||||
|
- 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
|
| X | ||||||||||
|
- Definition
Composite depreciation rate for public utility plants in service. No definition available.
|
|
Summary of Significant Accounting Policies - Capitalized Cost of Utility Plant (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Public Utility, Property, Plant and Equipment [Line Items] | ||
| General | $ 2,336 | $ 2,302 |
| Held for future use | 73 | 73 |
| Construction work in progress | 1,393 | 1,027 |
| Net Utility Plant | 27,795 | 26,301 |
|
Electric [Member]
|
||
| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Generation | 452 | 434 |
|
Electric [Member]
|
||
| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Transmission | 2,776 | 2,698 |
|
Electric Distribution [Member]
|
||
| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Distribution | 15,277 | 14,658 |
|
Gas [Member]
|
||
| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Gas | 4,469 | 4,170 |
|
Steam [Member]
|
||
| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Steam | 1,790 | 1,674 |
|
General [Member]
|
||
| Public Utility, Property, Plant and Equipment [Line Items] | ||
| General | 1,565 | 1,567 |
|
CECONY [Member]
|
||
| Public Utility, Property, Plant and Equipment [Line Items] | ||
| General | 2,154 | 2,126 |
| Held for future use | 62 | 62 |
| Construction work in progress | 1,303 | 947 |
| Net Utility Plant | 26,146 | 24,739 |
|
CECONY [Member] | Electric [Member]
|
||
| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Generation | 452 | 434 |
|
CECONY [Member] | Electric [Member]
|
||
| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Transmission | 2,597 | 2,518 |
|
CECONY [Member] | Electric Distribution [Member]
|
||
| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Distribution | 14,496 | 13,930 |
|
CECONY [Member] | Gas [Member]
|
||
| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Gas | 4,013 | 3,735 |
|
CECONY [Member] | Steam [Member]
|
||
| Public Utility, Property, Plant and Equipment [Line Items] | ||
| Steam | 1,790 | 1,674 |
|
CECONY [Member] | General [Member]
|
||
| Public Utility, Property, Plant and Equipment [Line Items] | ||
| General | $ 1,433 | $ 1,439 |
| X | ||||||||||
|
- Definition
Public Utilities Property Plant And Equipment Gas No definition available.
|
| X | ||||||||||
|
- Definition
Public Utilities Property Plant And Equipment Steam No definition available.
|
| X | ||||||||||
|
- 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
|
| 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 property, plant and equipment (PPE) related to utility distribution. No definition available.
|
| X | ||||||||||
|
- Definition
Period end amount of property, plant and equipment (PPE) related to generation or processing owned by public utility. No definition available.
|
| X | ||||||||||
|
- Definition
Period end amount of total net PPE. No definition available.
|
| X | ||||||||||
|
- Definition
Period end amount of property, plant and equipment (PPE) related to utility transmission owned by public utility. No definition available.
|
| X | ||||||||||
|
- Details
|
|
Summary of Significant Accounting Policies - Research and Development Costs (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Accounting Policies [Line Items] | |||
| Research and Development Costs | $ 18 | $ 21 | $ 23 |
|
CECONY [Member]
|
|||
| Accounting Policies [Line Items] | |||
| Research and Development Costs | $ 16 | $ 19 | $ 21 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- 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
|
|
Summary of Significant Accounting Policies - Earnings Per Common Share (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Earnings Per Share [Abstract] | |||
| Net income for common stock | $ 1,062 | $ 1,138 | $ 1,051 |
| Weighted average common shares outstanding - Basic | 292.9 | 292.9 | 292.6 |
| Add: Incremental shares attributable to effect of potentially dilutive securities | 1.5 | 1.6 | 1.8 |
| Adjusted weighted average common shares outstanding - Diluted | 294.4 | 294.5 | 294.4 |
| Net income for common stock per common share - basic | $ 3.62 | $ 3.88 | $ 3.59 |
| Net income for common stock per common share - diluted | $ 3.61 | $ 3.86 | $ 3.57 |
| X | ||||||||||
|
- Details
|
| 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
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
|
| 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 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
|
|
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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] | |||
| Accumulated OCI, net of taxes | $ (53) | ||
| OCI before reclassifications, net of tax of $15 and $1 for Con Edison and CECONY, respectively | 21 | ||
| Amounts reclassified from accumulated OCI related to pension plan liabilities, net of tax of $5 and $1 for Con Edison and CECONY, respectively | 7 | ||
| TOTAL OTHER COMPREHENSIVE INCOME/(LOSS), NET OF TAXES | 28 | 5 | (18) |
| Accumulated OCI, net of taxes | (25) | (53) | |
|
CECONY [Member]
|
|||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | |||
| Accumulated OCI, net of taxes | (9) | ||
| OCI before reclassifications, net of tax of $15 and $1 for Con Edison and CECONY, respectively | 2 | ||
| Amounts reclassified from accumulated OCI related to pension plan liabilities, net of tax of $5 and $1 for Con Edison and CECONY, respectively | 1 | ||
| TOTAL OTHER COMPREHENSIVE INCOME/(LOSS), NET OF TAXES | 3 | (1) | (2) |
| Accumulated OCI, net of taxes | $ (6) | $ (9) | |
| X | ||||||||||
|
- Details
|
| 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
Amount after tax, before reclassification adjustments of other comprehensive income (loss). No definition available.
|
| X | ||||||||||
|
- Definition
Amount after tax and reclassification adjustments of other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- 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.
|
|
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, 2013
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] | |
| OCI before reclassifications, Tax | $ 15 |
| Amounts reclassified from accumulated OCI related to pension plan liabilities, Tax | 5 |
|
CECONY [Member]
|
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] | |
| OCI before reclassifications, Tax | 1 |
| Amounts reclassified from accumulated OCI related to pension plan liabilities, Tax | $ 1 |
| X | ||||||||||
|
- Definition
Other Comprehensive Income Loss Before Reclassifications Tax No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- 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.
|
|
Regulatory Matters - Cecony - Electric - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Public Utilities, General Disclosures [Line Items] | |||
| Earnings sharing threshold limit | $ 17.5 | ||
| Deferred net regulatory assets | 126 | 126 | |
| Deferred net regulatory liability | 2,294.0 | 2,061.0 | |
| Increase in current liabilities | 9 | ||
| Regulatory liability | 40 | ||
| Deferred costs amortization period | 3 years | ||
|
February 2014 [Member] | Minimum [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Difference in property taxes | 10.00% | ||
|
February 2014 [Member] | Maximum [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Difference in property taxes | 90.00% | ||
|
CECONY-Electric [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Maximum impact on return on common equity and deferral of facility relocation expenses | Not more than a 10 basis point | ||
| Deferred net regulatory assets | 42 | 140 | |
| Deferred net regulatory liability | 39.0 | ||
| Deferred revenues | 34.0 | 59.0 | 90.0 |
| Potential operations penalties | 152 | ||
| System reliability penalty | 0 | 0 | 5 |
| Expected recovery of charges in 2014 | 20 | ||
|
CECONY-Electric [Member] | 50% of earnings [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Percentage of revenue allocated to customers | 50.00% | ||
| Percentage of revenue requirement earnings | 9.80% | ||
|
CECONY-Electric [Member] | Minimum [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Difference in property taxes | 20.00% | ||
|
CECONY-Electric [Member] | Maximum [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Difference in property taxes | 80.00% | ||
|
CECONY-Electric [Member] | T&D [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Capital expenditures | 2,300 | ||
|
CECONY-Electric [Member] | Other [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Capital expenditures | 402 | ||
|
CECONY-Electric [Member] | November 2009 Joint Proposal [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Weighted average cost of capital | 7.76% | ||
| Return on common equity | 10.15% | ||
| Long-term debt cost | 5.65% | ||
| Common equity ratio | 48.00% | ||
|
CECONY-Electric [Member] | Sale of transmission rights [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Accrued revenues | 27.0 | 45.0 | 26.0 |
| Revenues difference between actual and rate year, recoverable from customers | 120 | ||
| Decrease in annual revenue | 120 | ||
|
CECONY-Electric [Member] | February 2014 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Return on common equity | 9.20% | ||
| Common equity ratio | 48.00% | ||
| Maximum impact on return on common equity and deferral of facility relocation expenses | Not more than a 10 basis point | ||
| Decrease in annual revenue | 21 | ||
| Revenue requirement | 21 | ||
| Percent of incremental costs charge against the reserve | 98.00% | ||
| Potential operations penalties | 176.0 | ||
|
CECONY-Electric [Member] | December 2014 [Member] | February 2014 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Weighted average cost of capital | 7.05% | ||
| Capital expenditures | 1,487 | ||
| Decrease in annual revenue | 76 | ||
| Cost of long-term debt, percentage | 5.17% | ||
| Average base rate | 17,323 | ||
|
CECONY-Electric [Member] | December 2014 [Member] | February 2014 [Member] | Storm Hardening [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Capital expenditures | 180 | ||
|
CECONY-Electric [Member] | December 2015 [Member] | February 2014 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Weighted average cost of capital | 7.08% | ||
| Capital expenditures | 1,708 | ||
| Increase in annual revenues | 124 | ||
| Regulatory liability | 30 | ||
| Cost of long-term debt, percentage | 5.23% | ||
| Average base rate | 18,113 | ||
|
CECONY-Electric [Member] | December 2015 [Member] | February 2014 [Member] | Storm Hardening [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Capital expenditures | 278 | ||
|
CECONY-Electric [Member] | December 2014 and 2015 [Member] | February 2014 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Revenue requirement | 107 | ||
|
CECONY-Electric [Member] | February 2010 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Potential refund from customers | 249 | ||
| Increase in current liabilities | 36 | ||
|
CECONY-Electric [Member] | April 2010 [Member] | November 2009 Joint Proposal [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Electric base rate increase | 420.0 | ||
|
CECONY-Electric [Member] | April 2011 [Member] | November 2009 Joint Proposal [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Electric base rate increase | 420.0 | ||
|
CECONY-Electric [Member] | April 2012 [Member] | November 2009 Joint Proposal [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Electric base rate increase | 287.0 | ||
|
CECONY-Electric [Member] | March 2013 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Surcharge collected from customers | 134.0 | ||
| Deferred regulatory liabilities | 7 | ||
|
CECONY-Electric [Member] | March 2013 [Member] | 50% of earnings [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Percentage of revenue requirement earnings | 10.65% | ||
|
CECONY-Electric [Member] | March 2013 [Member] | T&D [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Deferred regulatory liabilities | 15,414 | ||
|
CECONY-Electric [Member] | March 2013 [Member] | Other [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Deferred regulatory liabilities | 1,650 | ||
|
CECONY-Electric [Member] | March 2013 [Member] | ERP [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Deferred regulatory liabilities | 115 | ||
|
CECONY-Electric [Member] | March 2013 [Member] | November 2009 Joint Proposal [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Surcharge collected from customers | 134.0 | ||
| Operations and maintenance expenses | 13 | ||
| Average base rate | 16,826 | ||
|
CECONY-Electric [Member] | March 2011 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Deferred regulatory liabilities | 8 | ||
|
CECONY-Electric [Member] | March 2011 [Member] | 50% of earnings [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Percentage of revenue requirement earnings | 11.15% | ||
|
CECONY-Electric [Member] | March 2011 [Member] | T&D [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Deferred regulatory liabilities | 13,818 | ||
| Capital expenditures | 1,200 | ||
|
CECONY-Electric [Member] | March 2011 [Member] | Other [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Deferred regulatory liabilities | 1,487 | ||
| Capital expenditures | 220 | ||
|
CECONY-Electric [Member] | March 2011 [Member] | ERP [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Capital expenditures | 125 | ||
|
CECONY-Electric [Member] | March 2011 [Member] | November 2009 Joint Proposal [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Operations and maintenance expenses | 27 | ||
| Average base rate | 14,887 | ||
|
CECONY-Electric [Member] | March 2012 [Member] | 50% of earnings [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Percentage of revenue requirement earnings | 10.65% | ||
|
CECONY-Electric [Member] | March 2012 [Member] | T&D [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Deferred regulatory liabilities | 14,742 | ||
|
CECONY-Electric [Member] | March 2012 [Member] | Other [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Deferred regulatory liabilities | 1,565 | ||
|
CECONY-Electric [Member] | March 2012 [Member] | ERP [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Deferred regulatory liabilities | 25 | ||
|
CECONY-Electric [Member] | March 2012 [Member] | November 2009 Joint Proposal [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Operations and maintenance expenses | 20 | ||
| Average base rate | $ 15,987 | ||
| X | ||||||||||
|
- Definition
Accrued Revenue No definition available.
|
| X | ||||||||||
|
- Definition
Amortization Period For Deferred Charges No definition available.
|
| X | ||||||||||
|
- Definition
Annual Revenues No definition available.
|
| X | ||||||||||
|
- Definition
Asserted Liability Including Penalties No definition available.
|
| X | ||||||||||
|
- Definition
Average Net Utility Plant Rates No definition available.
|
| X | ||||||||||
|
- Definition
Base Points Adjustment To Required Rate Of Return To Adjust For Lack Of Liquidity No definition available.
|
| X | ||||||||||
|
- Definition
Base Rate No definition available.
|
| X | ||||||||||
|
- Definition
Common Equity Ratio Percentage No definition available.
|
| X | ||||||||||
|
- Definition
Electric Base Rate Increase No definition available.
|
| X | ||||||||||
|
- Definition
Expected Recovery Of Charges No definition available.
|
| X | ||||||||||
|
- Definition
Increased Annual Revenues No definition available.
|
| X | ||||||||||
|
- Definition
Long Term Debt Issue Price Percentage No definition available.
|
| X | ||||||||||
|
- Definition
Other Regulatory Liabilities No definition available.
|
| X | ||||||||||
|
- Definition
Percentage Of Debt Securities Amortized Cost Based No definition available.
|
| X | ||||||||||
|
- Definition
Percentage Of Incremental Costs Charged Against Reserve No definition available.
|
| X | ||||||||||
|
- Definition
Percentage Of Revenue Attributable To Major Customers No definition available.
|
| X | ||||||||||
|
- Definition
Potential Penalty Expense No definition available.
|
| X | ||||||||||
|
- Definition
Property Tax Deferrals Rate Difference 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 Difference from Actual to Rate Year, Recoverable From Customers No definition available.
|
| X | ||||||||||
|
- Definition
Revenue Requirement No definition available.
|
| X | ||||||||||
|
- Definition
Revenue Requirement Earnings Percentage No definition available.
|
| X | ||||||||||
|
- Definition
Revenue Sharing Threshold Limit No definition available.
|
| X | ||||||||||
|
- Definition
Surcharge Collected From Customers No definition available.
|
| X | ||||||||||
|
- Definition
System Reliability Penalty Recognized No definition available.
|
| X | ||||||||||
|
- Definition
Weighted Average Cost Of Capital No definition available.
|
| X | ||||||||||
|
- Definition
Future cash outflow to pay for purchases of fixed assets that have occurred. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of refund payments made to customers during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| 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 increase (decrease) during the reporting period in other current operating liabilities not separately disclosed in the statement of cash flows. No definition available.
|
| X | ||||||||||
|
- Definition
Costs incurred and are directly related to generating maintenance revenues. Also includes cost of maintenance on client contracts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Regulatory Matters - Schedule of Regulatory Liability Revenue Requirement Impact (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 31, 2013
|
|
|
December 2014 [Member] | T&D [Member] | CECONY-Electric [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | $ 16,869 |
|
December 2014 [Member] | Storm Hardening [Member] | CECONY-Electric [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 89 |
|
December 2014 [Member] | Storm Hardening [Member] | CECONY-Gas [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 3 |
|
December 2014 [Member] | Other [Member] | CECONY-Electric [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 2,034 |
|
December 2014 [Member] | Gas Delivery [Member] | CECONY-Gas [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 3,899 |
|
December 2014 [Member] | Production [Member] | CECONY-Steam [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 1,752 |
|
December 2014 [Member] | Distribution [Member] | CECONY-Steam [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 6 |
|
December 2015 [Member] | T&D [Member] | CECONY-Electric [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 17,401 |
|
December 2015 [Member] | Storm Hardening [Member] | CECONY-Electric [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 177 |
|
December 2015 [Member] | Storm Hardening [Member] | CECONY-Gas [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 8 |
|
December 2015 [Member] | Other [Member] | CECONY-Electric [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 2,102 |
|
December 2015 [Member] | Gas Delivery [Member] | CECONY-Gas [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 4,258 |
|
December 2015 [Member] | Production [Member] | CECONY-Steam [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 1,732 |
|
December 2015 [Member] | Distribution [Member] | CECONY-Steam [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 11 |
|
December 2016 [Member] | Storm Hardening [Member] | CECONY-Gas [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 30 |
|
December 2016 [Member] | Gas Delivery [Member] | CECONY-Gas [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 4,698 |
|
December 2016 [Member] | Production [Member] | CECONY-Steam [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 1,720 |
|
December 2016 [Member] | Distribution [Member] | CECONY-Steam [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 25 |
|
September 2011 [Member] | Production [Member] | CECONY-Steam [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 415 |
|
September 2011 [Member] | Distribution [Member] | CECONY-Steam [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 521 |
|
September 2012 [Member] | Production [Member] | CECONY-Steam [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 426 |
|
September 2012 [Member] | Distribution [Member] | CECONY-Steam [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 534 |
|
September 2013 [Member] | Production [Member] | CECONY-Steam [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 433 |
|
September 2013 [Member] | Distribution [Member] | CECONY-Steam [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 543 |
|
March 2011 [Member] | CECONY-Electric [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 8 |
|
March 2011 [Member] | T&D [Member] | CECONY-Electric [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 13,818 |
|
March 2011 [Member] | Other [Member] | CECONY-Electric [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 1,487 |
|
March 2012 [Member] | T&D [Member] | CECONY-Electric [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 14,742 |
|
March 2012 [Member] | Other [Member] | CECONY-Electric [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 1,565 |
|
March 2012 [Member] | ERP [Member] | CECONY-Electric [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 25 |
|
March 2013 [Member] | CECONY-Electric [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 7 |
|
March 2013 [Member] | T&D [Member] | CECONY-Electric [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 15,414 |
|
March 2013 [Member] | Other [Member] | CECONY-Electric [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | 1,650 |
|
March 2013 [Member] | ERP [Member] | CECONY-Electric [Member]
|
|
| Regulatory Assets [Line Items] | |
| Regulatory liability of revenue requirement impact, amounts reflected in rates | $ 115 |
| X | ||||||||||
|
- Definition
Average Net Utility Plant Rates No definition available.
|
| X | ||||||||||
|
- Details
|
|
Regulatory Matters - Orange and Rockland Utilities, Inc. - Electric - Additional Information (Detail) (USD $)
|
12 Months Ended | ||||
|---|---|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Public Utilities, General Disclosures [Line Items] | |||||
| Potential operational penalties | $ 1,389,000,000 | ||||
| Regulatory asset | 7,201,000,000 | 9,705,000,000 | |||
|
O&R-Electric [Member]
|
|||||
| Public Utilities, General Disclosures [Line Items] | |||||
| Recognition of deferred expenses | 4,100,000 | ||||
| Regulatory asset | 1,100,000 | ||||
| Potential operational penalties | 3,000,000 | ||||
|
O&R-Electric [Member] | Maximum [Member]
|
|||||
| Public Utilities, General Disclosures [Line Items] | |||||
| Common equity ratio | 50.00% | ||||
|
O&R-Electric [Member] | July 2008 [Member]
|
|||||
| Public Utilities, General Disclosures [Line Items] | |||||
| Annual return on common equity | 9.40% | 9.40% | |||
| Actual earnings on equity, percentage | 10.20% | ||||
| Average common equity ratio, subject to a 50 percent maximum | 50.00% | ||||
| Recognition of deferred expenses | 0 | 0 | 300,000 | 3,000,000 | |
| Recognition of deferred revenue | 700,000 | ||||
| Company deferred revenue | 7,000,000 | 12,000,000 | 8,000,000 | ||
| Annual inflation rate | 4.00% | ||||
| Potential negative earnings adjustments | 3,000,000 | ||||
| Reduction in company revenue | 1,000,000 | ||||
| Accrued revenue | 3,300,000 | 5,100,000 | 12,500,000 | ||
|
O&R-Electric [Member] | May 2010 [Member]
|
|||||
| Public Utilities, General Disclosures [Line Items] | |||||
| Electric base rate increase | 9,800,000 | ||||
| Annual return on common equity | 10.30% | ||||
| Common equity ratio | 50.00% | ||||
|
O&R-Electric [Member] | November 2013 [Member]
|
|||||
| Public Utilities, General Disclosures [Line Items] | |||||
| Electric base rate increase | 19,300,000 | ||||
| Annual return on common equity | 10.25% | ||||
| Common equity ratio | 52.20% | ||||
| Recovery cost | 25,400,000 | ||||
|
O&R-Electric [Member] | July 2011[Member]
|
|||||
| Public Utilities, General Disclosures [Line Items] | |||||
| Electric base rate increase | 26,600,000 | ||||
| Annual return on common equity | 9.20% | ||||
| Weighted average cost of capital | 7.22% | ||||
| Austerity measures | 825,000 | ||||
| Cost of long-term debt, percentage | 5.50% | ||||
| Common equity ratio | 48.00% | ||||
| Average net utility plant rates | 718,000,000 | ||||
| Potential operational penalties | 3,000,000 | ||||
|
O&R-Electric [Member] | July 2008 [Member]
|
|||||
| Public Utilities, General Disclosures [Line Items] | |||||
| Electric base rate increase | 15,600,000 | ||||
|
O&R-Electric [Member] | July 2009 [Member]
|
|||||
| Public Utilities, General Disclosures [Line Items] | |||||
| Electric base rate increase | 15,600,000 | ||||
|
O&R-Electric [Member] | July 2010 [Member]
|
|||||
| Public Utilities, General Disclosures [Line Items] | |||||
| Electric base rate increase | 5,700,000 | ||||
| Collection of additional electric cost | 9,900,000 | ||||
|
O&R-Electric [Member] | July 2012 [Member]
|
|||||
| Public Utilities, General Disclosures [Line Items] | |||||
| Electric base rate increase | 19,400,000 | ||||
| Increase rate | 15,200,000 | ||||
|
O&R-Electric [Member] | July 2013 [Member]
|
|||||
| Public Utilities, General Disclosures [Line Items] | |||||
| Electric base rate increase | 8,800,000 | ||||
| Increase rate | 15,200,000 | ||||
|
O&R-Electric [Member] | July 2014 [Member]
|
|||||
| Public Utilities, General Disclosures [Line Items] | |||||
| Electric base rate increase | 15,200,000 | ||||
| Increase rate | 13,100,000 | ||||
| Surcharge payment | 2,100,000 | ||||
|
O&R-Electric [Member] | June 30, 2013 [Member]
|
|||||
| Public Utilities, General Disclosures [Line Items] | |||||
| Annual return on common equity | 9.40% | ||||
| Weighted average cost of capital | 7.61% | ||||
| Common equity ratio | 48.00% | ||||
| Average net utility plant rates | 678,000,000 | ||||
| Cost of long-term debt | 6.07% | ||||
| Average base rate | 671,000,000 | ||||
| Percentage of revenue allocated to customers | 50.00% | ||||
| Common equity basis points | 80 | ||||
|
O&R-Electric [Member] | June 30, 2014 [Member]
|
|||||
| Public Utilities, General Disclosures [Line Items] | |||||
| Annual return on common equity | 9.50% | ||||
| Weighted average cost of capital | 7.65% | ||||
| Common equity ratio | 48.00% | ||||
| Average net utility plant rates | 704,000,000 | ||||
| Cost of long-term debt | 6.07% | ||||
| Average base rate | 708,000,000 | ||||
| Percentage of revenue allocated to customers | 75.00% | ||||
| Common equity basis points | 180 | ||||
|
O&R-Electric [Member] | June 30, 2015 [Member]
|
|||||
| Public Utilities, General Disclosures [Line Items] | |||||
| Annual return on common equity | 9.60% | ||||
| Weighted average cost of capital | 7.48% | ||||
| Common equity ratio | 48.00% | ||||
| Average net utility plant rates | 753,000,000 | ||||
| Cost of long-term debt | 5.64% | ||||
| Average base rate | $ 759,000,000 | ||||
| Percentage of revenue allocated to customers | 90.00% | ||||
| Common equity basis points | 280 | ||||
| X | ||||||||||
|
- Definition
Accrued Revenue No definition available.
|
| X | ||||||||||
|
- Definition
Asserted Liability Including Penalties No definition available.
|
| X | ||||||||||
|
- Definition
Austerity Measures No definition available.
|
| X | ||||||||||
|
- Definition
Average Net Utility Plant Rates No definition available.
|
| X | ||||||||||
|
- Definition
Base Points Adjustment To Required Rate Of Return To Adjust For Lack Of Liquidity No definition available.
|
| X | ||||||||||
|
- Definition
Common Equity Ratio Percentage No definition available.
|
| X | ||||||||||
|
- Definition
Common Equity Ratio Restrictions No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Expense Recognized No definition available.
|
| X | ||||||||||
|
- Definition
Electric Base Rate Increase No definition available.
|
| X | ||||||||||
|
- Definition
Impact On Earnings Had Lag Period Been Adjusted No definition available.
|
| X | ||||||||||
|
- Definition
Increase In Base Rates No definition available.
|
| X | ||||||||||
|
- Definition
Inflation Rate No definition available.
|
| X | ||||||||||
|
- Definition
Long Term Debt Issue Price Percentage No definition available.
|
| X | ||||||||||
|
- Definition
Percentage Of Revenue Attributable To Major Customers No definition available.
|
| X | ||||||||||
|
- Definition
Percentage Return On Owners Equity No definition available.
|
| X | ||||||||||
|
- Definition
Potential Refund To Customers No definition available.
|
| X | ||||||||||
|
- Definition
Rate Of Return On Common Equity No definition available.
|
| X | ||||||||||
|
- Definition
Reduction In Revenue No definition available.
|
| X | ||||||||||
|
- Definition
Regulatory Matters Average Base Rate No definition available.
|
| X | ||||||||||
|
- Definition
Surcharge Payment No definition available.
|
| X | ||||||||||
|
- Definition
Weighted Average Cost Of Capital No definition available.
|
| X | ||||||||||
|
- Definition
Carrying amount as of the balance sheet date of the portion of the reserved funds established by a utility from customer payments to cover the repair costs of damages from major storms, which repairs are expected to be incurred within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| 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
The increase (decrease) during the reporting period in carrying amount of capitalized electric costs of a regulated entity that are expected to be recoverable through rate adjustments within one year or the normal operating cycle, if longer. 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
The amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. For cash flows, this element primarily pertains to amortization of deferred credits on long-term arrangements. As a noncash item, it is deducted from net income when calculating cash provided by or used in operations using the indirect method. 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
|
|
Regulatory Matters - Cecony - Gas - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2013
CECONY-Gas [Member]
|
Dec. 31, 2012
CECONY-Gas [Member]
|
Dec. 31, 2011
CECONY-Gas [Member]
|
Dec. 31, 2016
CECONY-Gas [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2015
CECONY-Gas [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2014
CECONY-Gas [Member]
Scenario, Forecast [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
Maximum [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
Maximum [Member]
50% of earnings [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
Minimum [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
September 2010 [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
Gas Distribution Revenues [Member]
|
Dec. 31, 2012
CECONY-Gas [Member]
Gas Distribution Revenues [Member]
|
Dec. 31, 2011
CECONY-Gas [Member]
Gas Distribution Revenues [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
25 Percent [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
15 Percent [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
May 2010 [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
February 2014 [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
February 2014 [Member]
Maximum [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
February 2014 [Member]
Minimum [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
October 2010 [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
October 2011 [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
October 2012 [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
September 2011 [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
September 2012 [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
September 2013 [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
December 2014 [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
December 2014 [Member]
Storm Hardening [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
December 2015 [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
December 2015 [Member]
Storm Hardening [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
December 2016 [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
December 2016 [Member]
Storm Hardening [Member]
|
Dec. 31, 2013
CECONY-Gas [Member]
December 31, 2016[Member]
|
|
| Public Utilities, General Disclosures [Line Items] | ||||||||||||||||||||||||||||||||||
| Gas base rate increase | $ 47.1 | $ 47.9 | $ 46.7 | |||||||||||||||||||||||||||||||
| Weighted average cost of capital, percentage | 7.46% | 7.10% | 7.13% | 7.21% | ||||||||||||||||||||||||||||||
| Return on common equity | 9.60% | 9.30% | ||||||||||||||||||||||||||||||||
| Reductions in costs | 6 | 4 | 2 | |||||||||||||||||||||||||||||||
| Cost of long-term debt | 5.57% | 5.17% | 5.23% | 5.39% | ||||||||||||||||||||||||||||||
| Common equity ratio | 48.00% | 50.00% | 48.00% | |||||||||||||||||||||||||||||||
| Average base rate | 3,027 | 3,245 | 3,434 | 3,521 | 3,863 | 4,236 | ||||||||||||||||||||||||||||
| Deferred regulatory liabilities | 2,934 | 3,148 | 3,346 | |||||||||||||||||||||||||||||||
| Deferred net regulatory liabilities | 2,294.0 | 2,061.0 | 26.0 | 0.3 | 36.0 | 22.0 | 20.0 | 0 | 2.9 | 9.5 | 32.0 | |||||||||||||||||||||||
| Percentage of revenue requirement earnings | 9.90% | 10.35% | 10.15% | 10.15% | ||||||||||||||||||||||||||||||
| Common equity basis points | 10 | |||||||||||||||||||||||||||||||||
| Deferred regulatory asset | 126 | 126 | 38 | |||||||||||||||||||||||||||||||
| Difference in property taxes | 80.00% | 20.00% | 90.00% | 10.00% | ||||||||||||||||||||||||||||||
| Amount of revenues retained | 64 | 57 | 70 | 58 | 65 | |||||||||||||||||||||||||||||
| Percentage of revenue reserve | 25.00% | 15.00% | ||||||||||||||||||||||||||||||||
| Accrual of regulatory asset | 33 | |||||||||||||||||||||||||||||||||
| Percentage of difference between targeted and least revenue reserve | 80.00% | |||||||||||||||||||||||||||||||||
| Potential operational penalties | 12.6 | 56.0 | 44.0 | 33.0 | ||||||||||||||||||||||||||||||
| Potential refund from customers | 32 | |||||||||||||||||||||||||||||||||
| Decrease in annual revenue | 55 | |||||||||||||||||||||||||||||||||
| Increase in annual revenues | 39 | 57 | ||||||||||||||||||||||||||||||||
| Capital expenditures | 524 | 5 | 586 | 36 | 627 | 57 | ||||||||||||||||||||||||||||
| Accrued revenues | $ 65.0 | |||||||||||||||||||||||||||||||||
| X | ||||||||||
|
- Definition
Accrued Revenue No definition available.
|
| X | ||||||||||
|
- Definition
Annual Revenues No definition available.
|
| X | ||||||||||
|
- Definition
Base Points Adjustment To Required Rate Of Return To Adjust For Lack Of Liquidity No definition available.
|
| X | ||||||||||
|
- Definition
Common Equity Ratio Percentage No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Credits and Regulatory Liabilities No definition available.
|
| X | ||||||||||
|
- Definition
Increased Annual Revenues No definition available.
|
| X | ||||||||||
|
- Definition
Percentage of Difference Between Targeted and Least Revenue Reserve No definition available.
|
| X | ||||||||||
|
- Definition
Percentage of Revenue Reserve No definition available.
|
| X | ||||||||||
|
- Definition
Potential Penalty Expense No definition available.
|
| X | ||||||||||
|
- Definition
Property Tax Deferrals Rate Difference No definition available.
|
| X | ||||||||||
|
- Definition
Rate Increase Reduction No definition available.
|
| X | ||||||||||
|
- Definition
Rate Of Return On Common Equity No definition available.
|
| X | ||||||||||
|
- Definition
Reduction In Amount Of Debt Issuance Costs 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 Reserve No definition available.
|
| X | ||||||||||
|
- Definition
Weighted Average Cost Of Capital No definition available.
|
| X | ||||||||||
|
- Definition
Future cash outflow to pay for purchases of fixed assets that have occurred. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of refund payments made to customers during the period. 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
|
|
Regulatory Matters - Orange and Rockland Utilities, Inc. - Gas - Additional Information (Detail) (O&R-Gas [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Public Utilities, General Disclosures [Line Items] | ||||
| Return on common equity | 10.40% | |||
| Recognition of deferred expenses | $ 8.3 | $ 0.7 | $ 2.9 | $ 3.1 |
| Deferred revenues | 1.5 | |||
| Deferred expenses | 0.7 | 1.0 | ||
| Deferred revenues/expenses | 0 | |||
| Annual inflation rate | 4.00% | |||
| Accrued revenue | 0.7 | 4.7 | 2.8 | 0.8 |
|
Minimum [Member]
|
||||
| Public Utilities, General Disclosures [Line Items] | ||||
| Return on common equity | 11.40% | |||
|
Maximum [Member]
|
||||
| Public Utilities, General Disclosures [Line Items] | ||||
| Average common equity ratio, subject to a 50 percent maximum | 50.00% | |||
| Annual negative earnings adjustments | 1.4 | |||
|
October 2010 [Member]
|
||||
| Public Utilities, General Disclosures [Line Items] | ||||
| Increase rate | 9.0 | |||
|
October 2011 [Member]
|
||||
| Public Utilities, General Disclosures [Line Items] | ||||
| Increase rate | 9.0 | |||
|
October 2012 [Member]
|
||||
| Public Utilities, General Disclosures [Line Items] | ||||
| Increase rate | 4.6 | |||
| Surcharge payment | $ 4.3 | |||
| X | ||||||||||
|
- Definition
Accrued Revenue No definition available.
|
| X | ||||||||||
|
- Definition
Common Equity Ratio Restrictions No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Expense Recognized No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Expenses Net No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Revenue And Accrued Expenses No definition available.
|
| X | ||||||||||
|
- Definition
Impact On Earnings Had Lag Period Been Adjusted No definition available.
|
| X | ||||||||||
|
- Definition
Increase In Base Rates No definition available.
|
| X | ||||||||||
|
- Definition
Inflation Rate No definition available.
|
| X | ||||||||||
|
- Definition
Rate Of Return On Common Equity No definition available.
|
| X | ||||||||||
|
- Definition
Surcharge Payment 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
|
|
Regulatory Matters - Cecony - Steam - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Public Utilities, General Disclosures [Line Items] | |||
| Regulatory liability | $ 40 | ||
|
CECONY-Steam [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Deferred net regulatory liabilities | 0 | 0.2 | 0.3 |
| Potential refund from customers | 6 | ||
| Annual negative earnings adjustments | 0.5 | ||
| Potential operational penalties | 1.0 | ||
|
CECONY-Steam [Member] | September 2011 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Reduction of cost | 4.5 | ||
| Average base rate | 1,589 | ||
|
CECONY-Steam [Member] | September 2012 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Reduction of cost | 3.0 | ||
| Average base rate | 1,603 | ||
|
CECONY-Steam [Member] | September 2013 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Surcharge collected from customers | 31.7 | ||
| Reduction of cost | 1.5 | ||
| Average base rate | 1,613 | ||
|
CECONY-Steam [Member] | December 2014 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Average base rate | 1,511 | ||
| Capital expenditures | 82 | ||
|
CECONY-Steam [Member] | December 2014 [Member] | February 2014 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Decrease in annual revenue | 22 | ||
|
CECONY-Steam [Member] | December 2014 [Member] | Storm Hardening [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Capital expenditures | 27 | ||
|
CECONY-Steam [Member] | December 2015 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Average base rate | 1,547 | ||
| Capital expenditures | 94 | ||
|
CECONY-Steam [Member] | December 2015 [Member] | February 2014 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Increase in annual revenues | 20 | ||
|
CECONY-Steam [Member] | December 2015 [Member] | Storm Hardening [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Capital expenditures | 31 | ||
|
CECONY-Steam [Member] | December 2016 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Average base rate | 1,604 | ||
| Capital expenditures | 98 | ||
|
CECONY-Steam [Member] | December 2016 [Member] | February 2014 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Increase in annual revenues | 20 | ||
| Regulatory liability | 8 | ||
|
CECONY-Steam [Member] | December 2016 [Member] | Storm Hardening [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Capital expenditures | 35 | ||
|
CECONY-Steam [Member] | October 2010 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Increase rate | 49.5 | ||
|
CECONY-Steam [Member] | October 2011 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Increase rate | 49.5 | ||
|
CECONY-Steam [Member] | October 2012 [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Increase rate | $ 17.8 | ||
| X | ||||||||||
|
- Definition
Annual Revenues No definition available.
|
| X | ||||||||||
|
- Definition
Base Rate No definition available.
|
| X | ||||||||||
|
- Definition
Impact On Earnings Had Lag Period Been Adjusted No definition available.
|
| X | ||||||||||
|
- Definition
Increased Annual Revenues No definition available.
|
| X | ||||||||||
|
- Definition
Increase In Base Rates No definition available.
|
| X | ||||||||||
|
- Definition
Other Regulatory Liabilities No definition available.
|
| X | ||||||||||
|
- Definition
Potential Penalty Expense No definition available.
|
| X | ||||||||||
|
- Definition
Regulatory Liability Deferred Revenue No definition available.
|
| X | ||||||||||
|
- Definition
Regulatory Matters Average Base Rate No definition available.
|
| X | ||||||||||
|
- Definition
Surcharge Collected From Customers No definition available.
|
| X | ||||||||||
|
- Definition
Unspecified Reductions in Costs No definition available.
|
| X | ||||||||||
|
- Definition
Future cash outflow to pay for purchases of fixed assets that have occurred. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| 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 - Other Regulatory Matters - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
0 Months Ended | 12 Months Ended | |
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Public Utilities, General Disclosures [Line Items] | |||
| Revenues from electric | $ 249 | ||
| Revenues from gas | 32 | ||
| Revenues from steam service | 6 | ||
| Potential refund to customers | 1,389 | ||
| Overcharges of construction expenditures | 208 | 208 | |
| Regulatory liability | 40 | 40 | |
| Company recovered from related parties | 16 | 16 | |
| Amount recovered for the benefit of customers | 15 | ||
| Additional refundable amounts applicable to customers | 25 | ||
| Regulatory asset | 7,230 | 7,230 | 9,779 |
| Regulatory liabilities | 148 | 148 | 183 |
|
CECONY [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Response and restoration costs | 483 | ||
| Capital expenditures | 147 | ||
| Regulatory asset | 6,665 | 6,665 | 9,032 |
| Regulatory liabilities | 107 | 107 | 145 |
|
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 | ||
|
Storm Costs [Member] | Rockland Electric Company [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Regulatory asset | 27 | 27 | |
|
Net Unbilled Revenue Deferrals [Member]
|
|||
| Public Utilities, General Disclosures [Line Items] | |||
| Regulatory liabilities | $ 133 | $ 133 |
| X | ||||||||||
|
- Definition
Additional Refund No definition available.
|
| X | ||||||||||
|
- Definition
Benefits Related To Reversals Of Previously Accrued Amount 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
Recorded Environmental Recoveries Amount 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 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
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, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Regulatory assets | ||
| Regulatory assets - long-term | $ 7,201.0 | $ 9,705.0 |
| Regulatory assets - current | 29 | 74 |
| Total Regulatory Assets | 7,230 | 9,779 |
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 1,728 | 1,202 |
| Regulatory liabilities - current | 148 | 183 |
| Total Regulatory Liabilities | 1,876 | 1,385 |
|
Unrecognized Pension and Other Postretirement Costs [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 2,730.0 | 5,677.0 |
|
Future Income Tax [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 2,145.0 | 1,922.0 |
|
Environmental Remediation Costs [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 938.0 | 730.0 |
|
Deferred Storm Costs [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 441.0 | 432.0 |
|
Pension and Other Postretirement Benefits Deferrals [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 237.0 | 183.0 |
|
Revenue Taxes [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 207.0 | 176.0 |
|
Net Electric Deferrals [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 83.0 | 102.0 |
|
Surcharge for New York State Assessment [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 78.0 | 73.0 |
|
Unamortized Loss on Reacquired Debt [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 65.0 | 74.0 |
|
O&R Transition Bond Charges [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 33.0 | 39.0 |
|
Preferred Stock Redemption [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 28.0 | 29.0 |
|
Property Tax Reconciliation [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 22.0 | 16.0 |
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 322 | 187 |
|
Workers' Compensation [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 12.0 | 19.0 |
|
Deferred Derivative Losses - Long-Term [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 8.0 | 40.0 |
|
Other [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 174.0 | 193.0 |
|
Deferred Derivative Losses - Current [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - current | 25 | 69 |
|
Recoverable Energy Costs - Current [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - current | 4 | 5 |
|
Allowance for Cost Removal Less Salvage [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 540 | 503 |
|
Net Unbilled Revenue Deferrals [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 133 | 136 |
| Regulatory liabilities - current | 133 | |
|
Property Tax Refunds [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 130 | 7 |
|
Long-Term Interest Rate Reconciliation [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 105 | 62 |
|
Carrying Charges On Repair Allowance And Bonus Depreciation [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 88 | 11 |
|
World Trade Center Settlement Proceeds [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 62 | 62 |
|
Other Postretirement Benefit Deferrals [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 50 | |
|
Expenditure Prudence Proceeding [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 40 | 14 |
|
Carrying Charges on Transmission and Distribution Net Plant [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 28 | 31 |
|
Electric Excess Earnings [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 22 | |
|
Other [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 208 | 189 |
|
Refundable Energy Costs - Current [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - current | 100 | 82 |
|
Revenue Decoupling Mechanism [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - current | 34 | 72 |
|
Deferred Derivative Gains - Current [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - current | 14 | |
|
Electric Surcharge Offset [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - current | 29 | |
|
CECONY [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 6,639.0 | 8,972.0 |
| Regulatory assets - current | 26 | 60 |
| Total Regulatory Assets | 6,665 | 9,032 |
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 1,598 | 1,077 |
| Regulatory liabilities - current | 107 | 145 |
| Total Regulatory Liabilities | 1,705 | 1,222 |
|
CECONY [Member] | Unrecognized Pension and Other Postretirement Costs [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 2,610.0 | 5,407.0 |
|
CECONY [Member] | Future Income Tax [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 2,030.0 | 1,831.0 |
|
CECONY [Member] | Environmental Remediation Costs [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 830.0 | 615.0 |
|
CECONY [Member] | Deferred Storm Costs [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 334.0 | 309.0 |
|
CECONY [Member] | Pension and Other Postretirement Benefits Deferrals [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 211.0 | 154.0 |
|
CECONY [Member] | Revenue Taxes [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 196.0 | 170.0 |
|
CECONY [Member] | Net Electric Deferrals [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 83.0 | 102.0 |
|
CECONY [Member] | Surcharge for New York State Assessment [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 74.0 | 68.0 |
|
CECONY [Member] | Unamortized Loss on Reacquired Debt [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 62.0 | 70.0 |
|
CECONY [Member] | Preferred Stock Redemption [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 28.0 | 29.0 |
|
CECONY [Member] | Property Tax Reconciliation [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 322 | 187 |
|
CECONY [Member] | Workers' Compensation [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 12.0 | 19.0 |
|
CECONY [Member] | Deferred Derivative Losses - Long-Term [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 7.0 | 20.0 |
|
CECONY [Member] | Other [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - long-term | 162.0 | 178.0 |
|
CECONY [Member] | Deferred Derivative Losses - Current [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - current | 22 | 60 |
|
CECONY [Member] | Recoverable Energy Costs - Current [Member]
|
||
| Regulatory assets | ||
| Regulatory assets - current | 4 | |
|
CECONY [Member] | Allowance for Cost Removal Less Salvage [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 453 | 420 |
|
CECONY [Member] | Net Unbilled Revenue Deferrals [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 133 | 136 |
|
CECONY [Member] | Property Tax Refunds [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 130 | 6 |
|
CECONY [Member] | Long-Term Interest Rate Reconciliation [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 105 | 62 |
|
CECONY [Member] | Carrying Charges On Repair Allowance And Bonus Depreciation [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 87 | 10 |
|
CECONY [Member] | World Trade Center Settlement Proceeds [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 62 | 62 |
|
CECONY [Member] | Other Postretirement Benefit Deferrals [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 50 | |
|
CECONY [Member] | Expenditure Prudence Proceeding [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 40 | 14 |
|
CECONY [Member] | Carrying Charges on Transmission and Distribution Net Plant [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 20 | 13 |
|
CECONY [Member] | Electric Excess Earnings [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 18 | |
|
CECONY [Member] | Other [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - long-term | 178 | 167 |
|
CECONY [Member] | Refundable Energy Costs - Current [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - current | 66 | 48 |
|
CECONY [Member] | Revenue Decoupling Mechanism [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - current | 30 | 68 |
|
CECONY [Member] | Deferred Derivative Gains - Current [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - current | 11 | |
|
CECONY [Member] | Electric Surcharge Offset [Member]
|
||
| Regulatory liabilities | ||
| Regulatory liabilities - current | $ 29 |
| 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 $)
In Millions, except Share data, unless otherwise specified |
12 Months Ended | 12 Months Ended | 12 Months Ended | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2013
Y
|
Dec. 31, 2012
|
Dec. 31, 2013
Level 2 [Member]
|
Dec. 31, 2013
Level 3 [Member]
|
Dec. 31, 2013
Minimum [Member]
|
Oct. 31, 2011
Minimum [Member]
|
Dec. 31, 2013
Maximum [Member]
|
Oct. 31, 2011
Maximum [Member]
|
Dec. 31, 2013
Transition Bonds, Issued in 2004 [Member]
|
Dec. 31, 2012
Transition Bonds, Issued in 2004 [Member]
|
Dec. 31, 2013
CECONY [Member]
|
Dec. 31, 2012
CECONY [Member]
|
May 31, 2012
CECONY [Member]
|
Dec. 31, 2013
CECONY [Member]
Level 2 [Member]
|
Dec. 31, 2013
CECONY [Member]
Level 3 [Member]
|
Dec. 31, 2013
CECONY [Member]
Minimum [Member]
|
Dec. 31, 2011
CECONY [Member]
Minimum [Member]
|
Dec. 31, 2013
CECONY [Member]
Maximum [Member]
|
Dec. 31, 2011
CECONY [Member]
Maximum [Member]
|
Dec. 31, 2013
Con Edison [Member]
Minimum [Member]
|
Dec. 31, 2013
Con Edison [Member]
Maximum [Member]
|
|||||
| Schedule of Capitalization [Line Items] | |||||||||||||||||||||||||
| Common stock shares, outstanding | 21,976,200 | 21,976,200 | |||||||||||||||||||||||
| Outstanding shares of Cumulative Preferred Stock | 5 | ||||||||||||||||||||||||
| Cumulative Preferred Stock, par value | $ 100 | ||||||||||||||||||||||||
| Percentage limitation for income available for dividends | 100.00% | ||||||||||||||||||||||||
| Rolling average calculation of income available for dividends, years | 2 | ||||||||||||||||||||||||
| Tax-exempt debt issued, value | $ 494 | ||||||||||||||||||||||||
| Long-term debt, fair value | 12,082 | 12,935 | 11,446 | 636 | 10,797 | 11,751 | 10,161 | 636 | |||||||||||||||||
| Long-term debt | 10,974 | 10,768 | 22 | 25 | 9,841 | [1] | 9,845 | [1] | |||||||||||||||||
| 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 | $ 150 | $ 100 | ||||||||||||||||||||||
| Ratio of consolidated debt to consolidated capital | 0.500 | 0.650 | 1.000 | 1.000 | 0.500 | 0.650 | 1.000 | 1.000 | 0.675 | 1.000 | |||||||||||||||
|
|||||||||||||||||||||||||
| 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
Rolling average calculation of income available for dividends 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 | ||||||||||
|
- Definition
Indebtedness divided by net capital. No definition available.
|
| X | ||||||||||
|
- Details
|
|
Capitalization - Schedule of Long-Term Debt Maturities (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2013
|
|---|---|
| Debt Instrument [Line Items] | |
| 2014 | $ 485 |
| 2015 | 500 |
| 2016 | 736 |
| 2017 | 12 |
| 2018 | 1,266 |
|
CECONY [Member]
|
|
| Debt Instrument [Line Items] | |
| 2014 | 475 |
| 2015 | 350 |
| 2016 | 650 |
| 2017 | |
| 2018 | $ 1,200 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. 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, 2013
|
Dec. 31, 2012
|
||||
|---|---|---|---|---|---|---|
| Debt Instrument [Line Items] | ||||||
| Carrying Amount | $ 10,974 | $ 10,768 | ||||
| Fair Value | 12,082 | 12,935 | ||||
|
CECONY [Member]
|
||||||
| Debt Instrument [Line Items] | ||||||
| Carrying Amount | 9,841 | [1] | 9,845 | [1] | ||
| Fair Value | $ 10,797 | $ 11,751 | ||||
|
||||||
| 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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2013
October 2016 [Member]
|
Dec. 31, 2013
Minimum [Member]
|
Oct. 31, 2011
Minimum [Member]
|
Dec. 31, 2013
Maximum [Member]
|
Oct. 31, 2011
Maximum [Member]
|
Dec. 31, 2013
Letters of Credit [Member]
October 2016 [Member]
|
Dec. 31, 2013
Letters of Credit [Member]
October 2017 [Member]
|
Dec. 31, 2013
CECONY [Member]
|
Dec. 31, 2012
CECONY [Member]
|
Dec. 31, 2013
CECONY [Member]
Minimum [Member]
|
Dec. 31, 2011
CECONY [Member]
Minimum [Member]
|
Dec. 31, 2013
CECONY [Member]
Maximum [Member]
|
Dec. 31, 2011
CECONY [Member]
Maximum [Member]
|
|
| Short-term Debt [Line Items] | |||||||||||||||
| Credit facility expiry date | Oct. 31, 2017 | ||||||||||||||
| Maximum borrowing capacity | $ 2,250,000,000 | $ 2,100,000,000 | |||||||||||||
| Current amount available | 1,000,000,000 | 1,200,000,000 | |||||||||||||
| Commercial paper, outstanding | 1,451,000,000 | 539,000,000 | 1,210,000,000 | 421,000,000 | |||||||||||
| Weighted average interest rate | 0.20% | 0.30% | 0.20% | 0.30% | |||||||||||
| Letters of credit outstanding under the Credit Agreement | $ 26,000,000 | $ 131,000,000 | $ 11,000,000 | $ 121,000,000 | |||||||||||
| Line of credit facility, covenant terms | Ratio of consolidated debt to consolidated total capital of 0.65 to 1 (at December 31, 2013 this ratio was 0.50 to 1 for Con Edison and CECONY); having liens on its assets in an aggregate amount exceeding 5 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 | 0.500 | 0.650 | 1.000 | 1.000 | 0.500 | 0.650 | 1.000 | 1.000 | |||||||
| Minimum percentage of liens on assets | 5.00% | ||||||||||||||
| 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
Amount borrowed under the credit facility as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| 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
Indebtedness divided by net capital. No definition available.
|
| X | ||||||||||
|
- Details
|
|
Pension Benefits - Companies' Net Periodic Benefit Costs (Detail) (Pension Benefits [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Defined Benefit Plan Disclosure [Line Items] | |||
| Service cost - including administrative expenses | $ 267 | $ 237 | $ 190 |
| Interest cost on projected benefit obligation | 537 | 547 | 560 |
| Expected return on plan assets | (750) | (705) | (734) |
| Recognition of net actuarial loss | 832 | 709 | 530 |
| Recognition of prior service costs | 5 | 8 | 8 |
| NET PERIODIC BENEFIT COST | 891 | 796 | 554 |
| Amortization of regulatory asset | 2 | 2 | 2 |
| TOTAL PERIODIC BENEFIT COST | 893 | 798 | 556 |
| Cost capitalized | (348) | (277) | (185) |
| Reconciliation to rate level | (84) | (8) | (65) |
| Cost charged to operating expenses | 461 | 513 | 306 |
|
CECONY [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Service cost - including administrative expenses | 249 | 220 | 177 |
| Interest cost on projected benefit obligation | 503 | 513 | 524 |
| Expected return on plan assets | (713) | (670) | (698) |
| Recognition of net actuarial loss | 788 | 670 | 501 |
| Recognition of prior service costs | 4 | 6 | 6 |
| NET PERIODIC BENEFIT COST | 831 | 739 | 510 |
| Amortization of regulatory asset | 2 | 2 | 2 |
| TOTAL PERIODIC BENEFIT COST | 833 | 741 | 512 |
| Cost capitalized | (327) | (260) | (172) |
| Reconciliation to rate level | (87) | (12) | (68) |
| Cost charged to operating expenses | $ 419 | $ 469 | $ 272 |
| 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 - Companies' Net Periodic Benefit Costs (Parenthetical) (Detail) (Pension Benefits [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 31, 2013
|
|
|
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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| CHANGE IN PROJECTED BENEFIT OBLIGATION | |||
| Benefit obligation at beginning of year | $ 13,406 | $ 11,825 | $ 10,307 |
| Service cost - excluding administrative expenses | 259 | 224 | 186 |
| Interest cost on projected benefit obligation | 537 | 547 | 560 |
| Net actuarial (gain)/loss | (1,469) | 1,323 | 1,251 |
| Benefits paid | (536) | (513) | (479) |
| BENEFIT OBLIGATION AT END OF YEAR | 12,197 | 13,406 | 11,825 |
| CHANGE IN PLAN ASSETS | |||
| Fair value of plan assets at beginning of year | 9,135 | 7,800 | 7,721 |
| Actual return on plan assets | 1,310 | 1,094 | 37 |
| Employer contributions | 879 | 785 | 542 |
| Benefits paid | (536) | (513) | (479) |
| Administrative expenses | (33) | (31) | (21) |
| FAIR VALUE OF PLAN ASSETS AT END OF YEAR | 10,755 | 9,135 | 7,800 |
| FUNDED STATUS | (1,442) | (4,271) | (4,025) |
| Unrecognized net loss | 2,759 | 5,594 | 5,351 |
| Unrecognized prior service costs | 17 | 23 | 30 |
| Accumulated benefit obligation | 11,004 | 11,911 | 10,595 |
|
CECONY [Member]
|
|||
| CHANGE IN PROJECTED BENEFIT OBLIGATION | |||
| Benefit obligation at beginning of year | 12,572 | 11,072 | 9,653 |
| Service cost - excluding administrative expenses | 241 | 209 | 174 |
| Interest cost on projected benefit obligation | 503 | 513 | 524 |
| Net actuarial (gain)/loss | (1,388) | 1,255 | 1,166 |
| Benefits paid | (499) | (477) | (445) |
| BENEFIT OBLIGATION AT END OF YEAR | 11,429 | 12,572 | 11,072 |
| CHANGE IN PLAN ASSETS | |||
| Fair value of plan assets at beginning of year | 8,668 | 7,406 | 7,340 |
| Actual return on plan assets | 1,241 | 1,040 | 33 |
| Employer contributions | 819 | 729 | 498 |
| Benefits paid | (499) | (477) | (445) |
| Administrative expenses | (32) | (30) | (20) |
| FAIR VALUE OF PLAN ASSETS AT END OF YEAR | 10,197 | 8,668 | 7,406 |
| FUNDED STATUS | (1,232) | (3,904) | (3,666) |
| Unrecognized net loss | 2,617 | 5,297 | 5,063 |
| Unrecognized prior service costs | 6 | 10 | 16 |
| Accumulated benefit obligation | $ 10,268 | $ 11,116 | $ 9,876 |
| 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
|
|
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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2013
Other Nonqualified Supplemental Defined Benefit Pension [Member]
|
Dec. 31, 2012
Other Nonqualified Supplemental Defined Benefit Pension [Member]
|
Dec. 31, 2013
CECONY [Member]
|
Dec. 31, 2012
CECONY [Member]
|
Dec. 31, 2013
CECONY [Member]
Other Nonqualified Supplemental Defined Benefit Pension [Member]
|
Dec. 31, 2012
CECONY [Member]
Other Nonqualified Supplemental Defined Benefit Pension [Member]
|
Dec. 31, 2013
Con Edison [Member]
|
Dec. 31, 2013
Pension Benefits [Member]
|
Dec. 31, 2012
Pension Benefits [Member]
|
Dec. 31, 2011
Pension Benefits [Member]
|
Dec. 31, 2013
Pension Benefits [Member]
CECONY [Member]
|
Dec. 31, 2012
Pension Benefits [Member]
CECONY [Member]
|
Dec. 31, 2011
Pension Benefits [Member]
CECONY [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | |||||||||||||||
| Pension liability | $ 2,672 | $ 2,829 | |||||||||||||
| Decrease to regulatory assets | 2,799 | (2,677) | |||||||||||||
| Credit to OCI | 24 | 3 | |||||||||||||
| Net loss estimated to be amortized | 586 | 619 | |||||||||||||
| Prior service cost estimated to be amortized | 2 | 4 | |||||||||||||
| Investments value | 201 | 164 | 183 | 148 | |||||||||||
| Accumulated benefit obligation | 234 | 231 | 199 | 193 | 11,004 | 11,911 | 10,595 | 10,268 | 11,116 | 9,876 | |||||
| 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 | $ 575 | $ 536 | |||||||||||||
| 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 | ||||||||||
|
- 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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount rate, benefit obligations | 4.80% | 4.10% | 4.70% |
| Discount rate, net periodic benefit | 4.10% | 4.70% | 5.60% |
| Expected return on plan assets | 8.00% | 8.00% | 8.50% |
|
CECONY [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Rate of compensation increase | 4.35% | 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 | 4.25% | 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, 2013
|
|---|---|
| Defined Benefit Plan Disclosure [Line Items] | |
| 2014 | $ 578 |
| 2015 | 600 |
| 2016 | 621 |
| 2017 | 640 |
| 2018 | 659 |
| 2019-2023 | 3,527 |
|
CECONY [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | |
| 2014 | 539 |
| 2015 | 559 |
| 2016 | 578 |
| 2017 | 596 |
| 2018 | 614 |
| 2019-2023 | $ 3,280 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the fifth fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan. 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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| 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% |
|
Equity Securities [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Plan Assets, Debt Securities | 60.00% | 60.00% | 61.00% |
|
Debt Securities [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Plan Assets, Debt Securities | 30.00% | 31.00% | 32.00% |
|
Real Estate [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Plan Assets, Debt Securities | 10.00% | 9.00% | 7.00% |
| 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) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
|
Private Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total fair value of plan net assets | $ 67 | $ 20 | ||
|
Real Estate [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total fair value of plan net assets | 1,062 | 833 | ||
|
Hedge Funds [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total fair value of plan net assets | 206 | |||
|
Pension Benefits [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 11,759 | 9,878 | ||
| Funds for retiree health benefits | (372) | (353) | ||
| Investments (excluding funds for retiree health benefits) | 11,387 | 9,525 | ||
| Pending activities | (632) | (390) | ||
| Total fair value of plan net assets | 10,755 | 9,135 | 7,800 | 7,721 |
|
Pension Benefits [Member] | U.S. Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 3,057 | 2,637 | ||
|
Pension Benefits [Member] | International Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 3,174 | 2,995 | ||
|
Pension Benefits [Member] | Private Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 67 | 20 | ||
| Total fair value of plan net assets | 20 | |||
|
Pension Benefits [Member] | U.S. Government Issued Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 1,855 | 1,626 | ||
|
Pension Benefits [Member] | Corporate Bonds Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 1,151 | 993 | ||
| Total fair value of plan net assets | 94 | |||
|
Pension Benefits [Member] | Structured Assets Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 4 | 30 | ||
| Total fair value of plan net assets | 13 | |||
|
Pension Benefits [Member] | Other Fixed Income Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 150 | 123 | ||
| Total fair value of plan net assets | 29 | |||
|
Pension Benefits [Member] | Real Estate [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 1,062 | 833 | ||
| Total fair value of plan net assets | 833 | 572 | ||
|
Pension Benefits [Member] | Cash and Cash Equivalents [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 685 | 411 | ||
|
Pension Benefits [Member] | Futures [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 348 | 210 | ||
|
Pension Benefits [Member] | Hedge Funds [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 206 | |||
|
Pension Benefits [Member] | Level 1 [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 5,835 | 5,172 | ||
| Funds for retiree health benefits | (185) | (185) | ||
| Investments (excluding funds for retiree health benefits) | 5,650 | 4,987 | ||
|
Pension Benefits [Member] | Level 1 [Member] | U.S. Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 3,057 | 2,637 | ||
|
Pension Benefits [Member] | Level 1 [Member] | International Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 2,303 | 2,242 | ||
|
Pension Benefits [Member] | Level 1 [Member] | Cash and Cash Equivalents [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 127 | 83 | ||
|
Pension Benefits [Member] | Level 1 [Member] | Futures [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 348 | 210 | ||
|
Pension Benefits [Member] | Level 2 [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 4,589 | 3,853 | ||
| Funds for retiree health benefits | (145) | (137) | ||
| Investments (excluding funds for retiree health benefits) | 4,444 | 3,716 | ||
|
Pension Benefits [Member] | Level 2 [Member] | International Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 871 | 753 | ||
|
Pension Benefits [Member] | Level 2 [Member] | U.S. Government Issued Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 1,855 | 1,626 | ||
|
Pension Benefits [Member] | Level 2 [Member] | Corporate Bonds Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 1,151 | 993 | ||
|
Pension Benefits [Member] | Level 2 [Member] | Structured Assets Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 4 | 30 | ||
|
Pension Benefits [Member] | Level 2 [Member] | Other Fixed Income Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 150 | 123 | ||
|
Pension Benefits [Member] | Level 2 [Member] | Cash and Cash Equivalents [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 558 | 328 | ||
|
Pension Benefits [Member] | Level 3 [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 1,335 | 853 | ||
| Funds for retiree health benefits | (42) | (31) | ||
| Investments (excluding funds for retiree health benefits) | 1,293 | 822 | ||
|
Pension Benefits [Member] | Level 3 [Member] | Private Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 67 | 20 | ||
|
Pension Benefits [Member] | Level 3 [Member] | Real Estate [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 1,062 | 833 | ||
|
Pension Benefits [Member] | Level 3 [Member] | Hedge Funds [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | $ 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) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2013
Pension Benefits [Member]
|
Dec. 31, 2012
Pension Benefits [Member]
|
Dec. 31, 2011
Pension Benefits [Member]
|
Dec. 31, 2010
Pension Benefits [Member]
|
Dec. 31, 2013
Real Estate [Member]
|
Dec. 31, 2012
Real Estate [Member]
Pension Benefits [Member]
|
Dec. 31, 2013
Private Equity [Member]
|
Dec. 31, 2012
Private Equity [Member]
Pension Benefits [Member]
|
Dec. 31, 2012
Corporate Bonds Debt [Member]
Pension Benefits [Member]
|
Dec. 31, 2012
Structured Assets Debt [Member]
Pension Benefits [Member]
|
Dec. 31, 2012
Other Fixed Income Debt [Member]
Pension Benefits [Member]
|
Dec. 31, 2013
Investments [Member]
|
Dec. 31, 2012
Investments [Member]
Pension Benefits [Member]
|
Dec. 31, 2013
Funds for Retiree Health Benefits [Member]
|
Dec. 31, 2012
Funds for Retiree Health Benefits [Member]
Pension Benefits [Member]
|
Dec. 31, 2013
Investments (Excluding Funds for Retiree Health Benefits) [Member]
|
Dec. 31, 2012
Investments (Excluding Funds for Retiree Health Benefits) [Member]
Pension Benefits [Member]
|
Dec. 31, 2013
Hedge Funds [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | ||||||||||||||||||
| Fair value of plan assets at beginning of year | $ 10,755 | $ 9,135 | $ 7,800 | $ 7,721 | $ 833 | $ 572 | $ 20 | $ 94 | $ 13 | $ 29 | $ 853 | $ 708 | $ (31) | $ (28) | $ 822 | $ 680 | ||
| Assets Still Held at Reporting Date - Unrealized Gains/(Losses) | 114 | 48 | 5 | 1 | 125 | 49 | (3) | (2) | 122 | 47 | 6 | |||||||
| Assets Sold During the Year - Realized Gains/(Losses) | 1 | 1 | (6) | 1 | (5) | 1 | (5) | |||||||||||
| Purchases Sales and Settlements | 114 | 212 | 42 | 19 | (33) | (6) | 356 | 192 | (8) | (4) | 348 | 188 | 200 | |||||
| Transfer In/(Out) of Level 3 | (61) | (7) | (23) | (91) | 3 | (88) | ||||||||||||
| FAIR VALUE OF PLAN ASSETS AT END OF YEAR | $ 10,755 | $ 9,135 | $ 7,800 | $ 7,721 | $ 1,062 | $ 833 | $ 67 | $ 20 | $ 1,335 | $ 853 | $ (42) | $ (31) | $ 1,293 | $ 822 | $ 206 | |||
| 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) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Defined Benefit Plan Disclosure [Line Items] | |||
| Employer contribution to the defined savings plan | $ 887 | $ 870 | $ 628 |
|
Con Edison [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Employer contribution to the defined savings plan | 30 | 23 | 23 |
|
CECONY [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Employer contribution to the defined savings plan | $ 830 | $ 804 | $ 576 |
| X | ||||||||||
|
- Details
|
| 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
|
|
Other Postretirement Benefits - Net Periodic Postretirement Benefit Costs (Detail) (Other Postretirement Benefits [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Defined Benefit Plan Disclosure [Line Items] | |||
| Service cost | $ 23 | $ 26 | $ 26 |
| Interest cost on accumulated other postretirement benefit obligation | 54 | 73 | 83 |
| Expected return on plan assets | (77) | (85) | (88) |
| Recognition of net actuarial loss | 65 | 98 | 88 |
| Recognition of prior service cost | (27) | (21) | (10) |
| Recognition of transition obligation | 2 | 4 | |
| NET PERIODIC BENEFIT COST | 38 | 93 | 103 |
| Cost capitalized | (15) | (32) | (35) |
| Reconciliation to rate level | 58 | 20 | 14 |
| Cost charged to operating expenses | 81 | 81 | 82 |
|
CECONY [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Service cost | 18 | 21 | 20 |
| Interest cost on accumulated other postretirement benefit obligation | 46 | 63 | 72 |
| Expected return on plan assets | (68) | (75) | (78) |
| Recognition of net actuarial loss | 57 | 87 | 80 |
| Recognition of prior service cost | (23) | (18) | (11) |
| Recognition of transition obligation | 2 | 4 | |
| NET PERIODIC BENEFIT COST | 30 | 80 | 87 |
| Cost capitalized | (12) | (28) | (29) |
| Reconciliation to rate level | 50 | 16 | 13 |
| Cost charged to operating expenses | $ 68 | $ 68 | $ 71 |
| 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
Defined Benefit Plan Cost Deferred 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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| CHANGE IN BENEFIT OBLIGATION | |||
| Benefit obligation at beginning of year | $ 1,454 | $ 1,756 | $ 1,642 |
| Service cost | 23 | 26 | 25 |
| Interest cost on accumulated postretirement benefit obligation | 54 | 73 | 83 |
| Amendments | (127) | ||
| Net actuarial loss/(gain) | (42) | (175) | 109 |
| Benefits paid and administrative expenses | (136) | (146) | (144) |
| Participant contributions | 38 | 37 | 33 |
| Medicare prescription subsidy | 4 | 10 | 8 |
| BENEFIT OBLIGATION AT END OF YEAR | 1,395 | 1,454 | 1,756 |
| CHANGE IN PLAN ASSETS | |||
| Fair value of plan assets at beginning of year | 1,047 | 947 | 942 |
| Actual return on plan assets | 153 | 124 | 20 |
| Employer contributions | 9 | 83 | 84 |
| EGWP payments | 8 | ||
| Participant contributions | 38 | 37 | 33 |
| Benefits paid | (142) | (144) | (132) |
| FAIR VALUE OF PLAN ASSETS AT END OF YEAR | 1,113 | 1,047 | 947 |
| FUNDED STATUS | (282) | (407) | (809) |
| Unrecognized net loss | 70 | 251 | 563 |
| Unrecognized prior service costs | (78) | (105) | (1) |
| Unrecognized net transition liability at January 1, 1993 | 4 | ||
|
CECONY [Member]
|
|||
| CHANGE IN BENEFIT OBLIGATION | |||
| Benefit obligation at beginning of year | 1,238 | 1,511 | 1,426 |
| Service cost | 18 | 21 | 20 |
| Interest cost on accumulated postretirement benefit obligation | 46 | 63 | 72 |
| Amendments | (89) | ||
| Net actuarial loss/(gain) | (20) | (178) | 86 |
| Benefits paid and administrative expenses | (126) | (134) | (132) |
| Participant contributions | 38 | 36 | 32 |
| Medicare prescription subsidy | 4 | 8 | 7 |
| BENEFIT OBLIGATION AT END OF YEAR | 1,198 | 1,238 | 1,511 |
| CHANGE IN PLAN ASSETS | |||
| Fair value of plan assets at beginning of year | 922 | 840 | 839 |
| Actual return on plan assets | 134 | 109 | 19 |
| Employer contributions | 9 | 71 | 74 |
| EGWP payments | 7 | ||
| Participant contributions | 38 | 36 | 32 |
| Benefits paid | (133) | (134) | (124) |
| FAIR VALUE OF PLAN ASSETS AT END OF YEAR | 977 | 922 | 840 |
| FUNDED STATUS | (221) | (316) | (671) |
| Unrecognized net loss | 54 | 197 | 496 |
| Unrecognized prior service costs | (61) | (84) | (15) |
| Unrecognized net transition liability at January 1, 1993 | $ 4 | ||
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|
| 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 net transition liability 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 | ||||||||||
|
- 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) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 3 Months Ended | 12 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | |
|---|---|---|---|---|---|---|---|
|
Dec. 31, 2013
|
Mar. 31, 2012
Other Postretirement Benefits [Member]
|
Dec. 31, 2013
Other Postretirement Benefits [Member]
|
Dec. 31, 2012
Other Postretirement Benefits [Member]
|
Dec. 31, 2013
CECONY [Member]
|
Dec. 31, 2012
CECONY [Member]
Other Postretirement Benefits [Member]
|
Dec. 31, 2013
CECONY [Member]
Other Postretirement Benefits [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | |||||||
| Reduction in postretirement life and health benefit plans | $ 102 | $ 25 | |||||
| Reduction to postretirement health benefit obligation recorded as actuarial gain | 306 | ||||||
| Decreased liability for other postretirement benefits | (125) | (95) | |||||
| Decrease to regulatory assets | 2,799 | (148) | 120 | ||||
| Credit to OCI | 24 | 4 | |||||
| Net losses unrecognized to be amortized | 59 | 586 | (19) | ||||
| Prior service cost unrecognized to be amortized | 52 | 2 | (15) | ||||
| Health care cost trend rate for net periodic benefit cost, current | 5.75% | ||||||
| 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 | 5.50% | ||||||
| Health care cost trend rate for benefit obligations | 4.50% | ||||||
| Year for final trend rate for benefit obligations | 2018 | ||||||
| Expected contributions | $ 7 | $ 7 |
| X | ||||||||||
|
- Definition
Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year, benefit obligations No definition available.
|
| 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, 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
The assumed health care cost trend rate for the next year used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period. No definition available.
|
| 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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Defined Benefit Plan Disclosure [Line Items] | |||
| Expected return on plan assets | 7.75% | 8.50% | 8.50% |
|
CECONY [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount rate, benefit obligations | 4.50% | 3.75% | 4.55% |
| Discount rate, net periodic benefit | 3.75% | 4.55% | 5.40% |
|
O&R [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount rate, benefit obligations | 4.75% | 4.05% | 4.55% |
| Discount rate, net periodic benefit | 4.05% | 4.55% | 5.40% |
| 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 | $ (35) |
| Effect on service cost and interest cost components for 2013, Increase | (2) |
| Effect on accumulated other postretirement benefit obligation, Decrease | 27 |
| Effect on service cost and interest cost components for 2013, Decrease | 1 |
|
CECONY [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | |
| Effect on accumulated other postretirement benefit obligation, Increase | (53) |
| Effect on service cost and interest cost components for 2013, Increase | (4) |
| Effect on accumulated other postretirement benefit obligation, Decrease | 41 |
| Effect on service cost and interest cost components for 2013, 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, 2013
|
|---|---|
| Defined Benefit Plan Disclosure [Line Items] | |
| 2014 - BENEFIT PAYMENTS | $ 105 |
| 2015 - BENEFIT PAYMENTS | 105 |
| 2016 - BENEFIT PAYMENTS | 102 |
| 2017 - BENEFIT PAYMENTS | 101 |
| 2018 - BENEFIT PAYMENTS | 99 |
| 2019-2023 - BENEFIT PAYMENTS | 465 |
|
CECONY [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | |
| 2014 - BENEFIT PAYMENTS | 94 |
| 2015 - BENEFIT PAYMENTS | 94 |
| 2016 - BENEFIT PAYMENTS | 91 |
| 2017 - BENEFIT PAYMENTS | 89 |
| 2018 - BENEFIT PAYMENTS | 88 |
| 2019-2023 - BENEFIT PAYMENTS | $ 403 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the fifth fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan. 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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2013
Equity Securities [Member]
|
Dec. 31, 2012
Equity Securities [Member]
|
Dec. 31, 2011
Equity Securities [Member]
|
Dec. 31, 2013
Debt Securities [Member]
|
Dec. 31, 2012
Debt Securities [Member]
|
Dec. 31, 2011
Debt Securities [Member]
|
Dec. 31, 2014
Scenario, Forecast [Member]
|
Dec. 31, 2014
Scenario, Forecast [Member]
Equity Securities [Member]
|
Dec. 31, 2014
Scenario, Forecast [Member]
Debt Securities [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | ||||||||||||
| Plan Assets | 100.00% | 100.00% | 100.00% | 61.00% | 62.00% | 62.00% | 39.00% | 38.00% | 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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | $ 743 | $ 687 | ||
| Funds for retiree health benefits | 372 | 353 | ||
| Investments (including funds for retiree health benefits) | 1,115 | 1,040 | ||
| Pending activities | (2) | 7 | ||
| Total fair value of plan net assets | 1,113 | 1,047 | 947 | 942 |
|
Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 450 | |||
|
U.S. Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 311 | |||
|
International Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 124 | |||
|
Other Fixed Income Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 286 | 229 | ||
|
Cash and Cash Equivalents [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 7 | 23 | ||
|
Level 1 [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 127 | |||
| Funds for retiree health benefits | 185 | 185 | ||
| Investments (including funds for retiree health benefits) | 185 | 312 | ||
|
Level 1 [Member] | Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | ||||
|
Level 1 [Member] | U.S. Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 127 | |||
|
Level 1 [Member] | International Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | ||||
|
Level 1 [Member] | Other Fixed Income Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | ||||
|
Level 1 [Member] | Cash and Cash Equivalents [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | ||||
|
Level 2 [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 743 | 560 | ||
| Funds for retiree health benefits | 145 | 137 | ||
| Investments (including funds for retiree health benefits) | 888 | 697 | ||
|
Level 2 [Member] | Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 450 | |||
|
Level 2 [Member] | U.S. Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 184 | |||
|
Level 2 [Member] | International Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 124 | |||
|
Level 2 [Member] | Other Fixed Income Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 286 | 229 | ||
|
Level 2 [Member] | Cash and Cash Equivalents [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | 7 | 23 | ||
|
Level 3 [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | ||||
| Funds for retiree health benefits | 42 | 31 | ||
| Investments (including funds for retiree health benefits) | 42 | 31 | ||
| Total fair value of plan net assets | ||||
|
Level 3 [Member] | Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | ||||
|
Level 3 [Member] | U.S. Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | ||||
|
Level 3 [Member] | International Equity [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | ||||
|
Level 3 [Member] | Other Fixed Income Debt [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | ||||
|
Level 3 [Member] | Cash and Cash Equivalents [Member]
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Total investments | ||||
| 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
|
|
Other Postretirement Benefits - Reconciliation of Fair Value Balances for Net Assets (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2013
Funds for Retiree Health Benefits [Member]
|
Dec. 31, 2013
Other Postretirement Benefits [Member]
|
Dec. 31, 2012
Other Postretirement Benefits [Member]
|
Dec. 31, 2011
Other Postretirement Benefits [Member]
|
Dec. 31, 2010
Other Postretirement Benefits [Member]
|
Dec. 31, 2013
Other Postretirement Benefits [Member]
Level 3 [Member]
|
Dec. 31, 2012
Other Postretirement Benefits [Member]
Level 3 [Member]
|
Dec. 31, 2013
Other Postretirement Benefits [Member]
Level 3 [Member]
Funds for Retiree Health Benefits [Member]
|
Dec. 31, 2012
Other Postretirement Benefits [Member]
Level 3 [Member]
Funds for Retiree Health Benefits [Member]
|
Dec. 31, 2013
Other Postretirement Benefits [Member]
Level 3 [Member]
Investments (including funds for retiree health benefits) [Member]
|
Dec. 31, 2012
Other Postretirement Benefits [Member]
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 | $ (31) | $ 1,113 | $ 1,047 | $ 947 | $ 942 | $ 31 | $ 28 | $ 31 | $ 28 | ||
| Assets Still Held at Reporting Date - Unrealized Gains/(Losses) | (3) | 3 | 2 | 3 | 2 | ||||||
| Assets Sold During the Year - Realized Gains/(Losses) | |||||||||||
| Purchases Sales and Settlements | (8) | 8 | 4 | 8 | 4 | ||||||
| Transfers (In/Out) of Level 3 | (3) | (3) | |||||||||
| FAIR VALUE OF PLAN ASSETS AT END OF YEAR | $ (42) | $ 1,113 | $ 1,047 | $ 947 | $ 942 | $ 42 | $ 31 | $ 42 | $ 31 | ||
| 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, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Accrued Liabilities: | ||
| Regulatory assets | $ 7,230 | $ 9,779 |
|
Manufactured Gas Plant Sites [Member]
|
||
| Accrued Liabilities: | ||
| Accrued Liabilities | 665 | 462 |
|
Other Superfund Sites [Member]
|
||
| Accrued Liabilities: | ||
| Accrued Liabilities | 84 | 83 |
|
Superfund Sites [Member]
|
||
| Accrued Liabilities: | ||
| Accrued Liabilities | 749 | 545 |
| Regulatory assets | 938 | 730 |
|
CECONY [Member]
|
||
| Accrued Liabilities: | ||
| Regulatory assets | 6,665 | 9,032 |
|
CECONY [Member] | Manufactured Gas Plant Sites [Member]
|
||
| Accrued Liabilities: | ||
| Accrued Liabilities | 562 | 351 |
|
CECONY [Member] | Other Superfund Sites [Member]
|
||
| Accrued Liabilities: | ||
| Accrued Liabilities | 82 | 82 |
|
CECONY [Member] | Superfund Sites [Member]
|
||
| Accrued Liabilities: | ||
| Accrued Liabilities | 644 | 433 |
| Regulatory assets | $ 830 | $ 615 |
| 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 | ||||||||||
|
- 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
|
|
Environmental Matters - Environmental Remediation Costs (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Environmental Exit Cost [Line Items] | ||
| Remediation costs incurred | $ 41 | $ 31 |
| Insurance recoveries received | 4 | |
|
CECONY [Member]
|
||
| Environmental Exit Cost [Line Items] | ||
| Remediation costs incurred | 35 | 26 |
| Insurance recoveries received | $ 4 | |
| 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 - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 31, 2013
|
|
|
Asbestos Proceedings [Member]
|
|
| Environmental Exit Cost [Line Items] | |
| Estimated undiscounted asbestos liability | $ 8 |
|
CECONY [Member] | Asbestos Proceedings [Member]
|
|
| Environmental Exit Cost [Line Items] | |
| Estimated undiscounted asbestos liability | 7 |
| Estimated undiscounted asbestos liability in year | 15 years |
|
CECONY [Member] | Superfund Sites [Member] | Manufactured Gas Plant Sites [Member]
|
|
| Environmental Exit Cost [Line Items] | |
| Estimated aggregate undiscounted potential liability related environmental contaminants | 2,400 |
|
O&R [Member] | Superfund Sites [Member] | Manufactured Gas Plant Sites [Member]
|
|
| Environmental Exit Cost [Line Items] | |
| Estimated aggregate undiscounted potential liability related environmental contaminants | $ 167 |
| X | ||||||||||
|
- Definition
Estimated undiscounted asbestos Liability No definition available.
|
| X | ||||||||||
|
- Definition
Estimated Undiscounted Asbestos Liability In Year No definition available.
|
| X | ||||||||||
|
- Definition
Undiscounted amount of the accrual for environmental loss contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Environmental Matters - Accrued Liability for Asbestos Suits and Workers' Compensation Proceedings (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Site Contingency [Line Items] | ||
| Regulatory assets | $ 7,230 | $ 9,779 |
|
Asbestos Suits [Member]
|
||
| Site Contingency [Line Items] | ||
| Accrued liability | 8 | 10 |
| Regulatory assets | 8 | 10 |
|
Workers Compensation Insurance [Member]
|
||
| Site Contingency [Line Items] | ||
| Accrued liability | 87 | 94 |
| Regulatory assets | 12 | 19 |
|
CECONY [Member]
|
||
| Site Contingency [Line Items] | ||
| Regulatory assets | 6,665 | 9,032 |
|
CECONY [Member] | Asbestos Suits [Member]
|
||
| Site Contingency [Line Items] | ||
| Accrued liability | 7 | 10 |
| Regulatory assets | 7 | 10 |
|
CECONY [Member] | Workers Compensation Insurance [Member]
|
||
| Site Contingency [Line Items] | ||
| Accrued liability | 82 | 89 |
| Regulatory assets | $ 12 | $ 19 |
| 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 $)
In Millions, unless otherwise specified |
1 Months Ended | 12 Months Ended | |||||
|---|---|---|---|---|---|---|---|
|
Jul. 31, 2007
Person
|
Dec. 31, 2013
Lawsuits
|
Dec. 31, 2012
|
Dec. 31, 2013
Con Edison Development [Member]
|
Dec. 31, 2013
Construction and Operation of Solar Energy Facilities [Member]
|
Dec. 31, 2013
Other [Member]
|
Dec. 31, 2013
Insurance Receivable [Member]
|
|
| Operating Leased Assets [Line Items] | |||||||
| Number of person died in steam ruptured | 1 | ||||||
| Number of suits pending against the company | 90 | ||||||
| Estimated accrued liability for suits | $ 50 | ||||||
| Insurance receivable for suits | 50 | ||||||
| Guarantee obligations maximum exposure | 1,331 | 859 | 80 | 31 | |||
| Percentage of variable interests | 50.00% | ||||||
| Guarantees issued | 3 | ||||||
| Estimate of maximum potential obligation | 5 | ||||||
| Indemnity agreements amount | $ 25 | ||||||
| X | ||||||||||
|
- Definition
Maximum Amount Reimbursable Under Indemnity Agreement No definition available.
|
| X | ||||||||||
|
- Definition
Number Of Lawsuits 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
Performance Targets Maximum Potential Obligation No definition available.
|
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of obligations incurred through that date and payable to insurance entities to mitigate potential loss from various risks or to satisfy a promise to provide certain coverage's to employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| 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 | ||||||||||
|
- 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
|
|
Other Material Contingencies - Total Guarantees (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | $ 1,331 | $ 859 |
|
Energy Transactions [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 841 | |
|
Solar Energy Projects [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 459 | |
|
Other [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 31 | |
|
0 - 3 years [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 1,229 | |
|
0 - 3 years [Member] | Energy Transactions [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 753 | |
|
0 - 3 years [Member] | Solar Energy Projects [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 445 | |
|
0 - 3 years [Member] | Other [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 31 | |
|
4 - 10 years [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 44 | |
|
4 - 10 years [Member] | Energy Transactions [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 30 | |
|
4 - 10 years [Member] | Solar Energy Projects [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 14 | |
|
4 - 10 years [Member] | Other [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | ||
|
Greater than 10 years [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 58 | |
|
Greater than 10 years [Member] | Energy Transactions [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | 58 | |
|
Greater than 10 years [Member] | Solar Energy Projects [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term | ||
|
Greater than 10 years [Member] | Other [Member]
|
||
| Guarantor Obligations [Line Items] | ||
| Total guarantees, by type and term |
| 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, 2013
MW
|
|
|
Indian Point [Member]
|
|
| Long-term Contract for Purchase of Electric Power [Line Items] | |
| Plant Output (MW) | 1,299 |
| Contracted Output (MW) | 500 |
| Contract Start Date | August 2001 |
| Contract Term (Years) | 16 years |
|
Independence [Member]
|
|
| Long-term Contract for Purchase of Electric Power [Line Items] | |
| Plant Output (MW) | 1,254 |
| Contracted Output (MW) | 689 |
| Contract Start Date | November 1994 |
| Contract Term (Years) | 20 years |
|
Linden Cogeneration [Member]
|
|
| Long-term Contract for Purchase of Electric Power [Line Items] | |
| Plant Output (MW) | 1,035 |
| Contracted Output (MW) | 546 |
| Contract Start Date | May 1992 |
| Contract Term (Years) | 25 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 |
|
Selkirk [Member]
|
|
| Long-term Contract for Purchase of Electric Power [Line Items] | |
| Plant Output (MW) | 446 |
| Contracted Output (MW) | 265 |
| Contract Start Date | September 1994 |
| Contract Term (Years) | 20 years |
|
Brooklyn Navy Yard [Member]
|
|
| Long-term Contract for Purchase of Electric Power [Line Items] | |
| Plant Output (MW) | 322 |
| Contracted Output (MW) | 217 |
| Contract Start Date | November 1996 |
| Contract Term (Years) | 40 years |
|
Indeck Corinth [Member]
|
|
| Long-term Contract for Purchase of Electric Power [Line Items] | |
| Plant Output (MW) | 147 |
| Contracted Output (MW) | 132 |
| Contract Start Date | July 1995 |
| Contract Term (Years) | 20 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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Fixed payment under the contracts | $ 1,282 | $ 1,164 | $ 1,372 |
|
2014 [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Fixed payment under the contracts | 447 | ||
|
2015 [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Fixed payment under the contracts | 235 | ||
|
2016 [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Fixed payment under the contracts | 169 | ||
|
2017 [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Fixed payment under the contracts | 113 | ||
|
Year 2018 [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Fixed payment under the contracts | 57 | ||
|
All Years Thereafter [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Fixed payment under the contracts | $ 875 | ||
| 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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Capacity, energy and other fixed payments | $ 1,282 | $ 1,164 | $ 1,372 |
|
Linden Cogeneration [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Capacity, energy and other fixed payments | 346 | 297 | 379 |
|
Indian Point [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Capacity, energy and other fixed payments | 220 | 204 | 238 |
|
Selkirk [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Capacity, energy and other fixed payments | 215 | 196 | 209 |
|
Astoria Energy [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Capacity, energy and other fixed payments | 183 | 181 | 225 |
|
Independence [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Capacity, energy and other fixed payments | 121 | 127 | 121 |
|
Brooklyn Navy Yard [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Capacity, energy and other fixed payments | 118 | 93 | 123 |
|
Indeck Corinth [Member]
|
|||
| Long-term Contract for Purchase of Electric Power [Line Items] | |||
| Capacity, energy and other fixed payments | $ 79 | $ 66 | $ 77 |
| 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, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Leases | ||
| Utility Plant | $ 3 | $ 3 |
|
CECONY [Member]
|
||
| Leases | ||
| Utility Plant | $ 2 | $ 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 $)
In Millions, unless otherwise specified |
1 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
|
Aug. 31, 2013
|
Jun. 30, 2013
|
Jan. 31, 2013
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Operating Leased Assets [Line Items] | |||||
| Accumulated amortization | $ 1.0 | $ 1.0 | |||
| Lease In/Lease Out total investment | 259 | ||||
| Lease In/Lease Out total financed by equity | 93 | ||||
| Lease In/Lease Out total financed by long-term debt | 166 | ||||
| Company's net investment in LILO transactions | 0 | (76) | |||
| Gross investment in leverage leases | 228 | ||||
| Deferred tax liabilities | 304 | ||||
| Estimated charge after-tax | 150 | ||||
| Gain from LILO transaction termination | 26 | 29 | |||
| Proceeds from the termination of a LILO transaction | 92 | 108 | |||
| Defray of interest charges relating to potential tax liability | 447 | ||||
| Returned deposit from IRS | 327 | 70 | |||
| Settlement of federal and state tax liabilities | 48 | ||||
| Refund from IFRS | 10 | ||||
|
IRS [Member]
|
|||||
| Operating Leased Assets [Line Items] | |||||
| Returned deposit from IRS | 125 | ||||
| Settlement of tax and interest | 38 | ||||
|
Tax deficiency paid in December 2005 [Member]
|
|||||
| Operating Leased Assets [Line Items] | |||||
| Tax deficiency paid to IRS | 0.3 | ||||
|
Interest in April 2006 [Member]
|
|||||
| Operating Leased Assets [Line Items] | |||||
| Interest paid related to tax deficiency | 0.2 | ||||
|
Disallowance of Tax 1998 to 2011 [Member]
|
|||||
| Operating Leased Assets [Line Items] | |||||
| Disallowed deduction | 574 | ||||
|
CECONY [Member]
|
|||||
| Operating Leased Assets [Line Items] | |||||
| Accumulated amortization | 0.6 | 0.4 | |||
| Returned deposit from IRS | $ 86 | $ 65 | |||
| 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
Income Tax Paid Upon IRS Examination No definition available.
|
| X | ||||||||||
|
- Definition
IRS Disallowed Deduction 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
Net Cash Proceeds From Termination Of Leases And Associated Deal Costs 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
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
The amount of estimated interest recognized in the period arising from income tax examinations. 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 | ||||||||||
|
- Definition
Interest expense (income) directly attributable to an award in settlement of litigation. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amounts payable for money transfers, money orders, and consumer payment service arrangements. Settlement liabilities include amounts payable to intermediaries for global payment transfers. No definition available.
|
|
Leases - Future Minimum Lease Commitments (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2013
|
|---|---|
| Capital Leased Assets [Line Items] | |
| 2014 | $ 1 |
| 2015 | 1 |
| 2016 | |
| 2017 | |
| 2018 | 1 |
| All years thereafter | |
| Total | 3 |
| Less: amount representing interest | (1) |
| Present value of net minimum lease payment | 2 |
|
CECONY [Member]
|
|
| Capital Leased Assets [Line Items] | |
| 2014 | 1 |
| 2015 | 1 |
| 2016 | |
| 2017 | |
| 2018 | 1 |
| All years thereafter | |
| Total | 3 |
| Less: amount representing interest | (1) |
| Present value of net minimum lease payment | $ 2 |
| 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 maturing in the next fiscal year following the latest fiscal year for capital leases. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of minimum lease payments maturing in the fifth fiscal year following the latest fiscal year for capital leases. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of minimum lease payments maturing in the forth fiscal year following the latest fiscal year for capital leases. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of minimum lease payments maturing in the third fiscal year following the latest fiscal year for capital leases. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of minimum lease payments maturing in the second fiscal year following the latest fiscal year for capital leases. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of minimum lease payments maturing after the fifth fiscal year following the latest fiscal year for capital leases. 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, 2013
|
|---|---|
| Operating Leased Assets [Line Items] | |
| 2014 | $ 17 |
| 2015 | 17 |
| 2016 | 16 |
| 2017 | 16 |
| 2018 | 15 |
| All years thereafter | 90 |
| Total | 171 |
|
CECONY [Member]
|
|
| Operating Leased Assets [Line Items] | |
| 2014 | 13 |
| 2015 | 13 |
| 2016 | 13 |
| 2017 | 12 |
| 2018 | 12 |
| All years thereafter | 61 |
| Total | $ 124 |
| 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, 2013
|
|
| Guarantor Obligations [Line Items] | |
| Total decrease in net income | $ (95) |
|
Decrease to Non-Utility Operating Revenues [Member]
|
|
| Guarantor Obligations [Line Items] | |
| Total decrease in net income | (27) |
|
Increase to Other Interest Expense [Member]
|
|
| Guarantor Obligations [Line Items] | |
| Total decrease in net income | (131) |
|
Income Tax Benefit [Member]
|
|
| Guarantor Obligations [Line Items] | |
| Total decrease in net income | $ 63 |
| X | ||||||||||
|
- Definition
Actual Cost Recorded For Lease In Lease Out Settlement No definition available.
|
| X | ||||||||||
|
- Details
|
|
Goodwill - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| 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
Goodwill Allocated For Impairment Testing No definition available.
|
| 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 |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2013
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Income Tax [Line Items] | ||||
| State - Current | $ 151 | $ 29 | $ 56 | |
| State - Deferred | (70) | 97 | 63 | |
| Federal - Current | 285 | (13) | 53 | |
| Federal - Deferred | 115 | 493 | 434 | |
| Amortization of investment tax credits | (5) | (6) | (6) | |
| Total charge to income tax expense | 13 | 476 | 600 | 600 |
|
CECONY [Member]
|
||||
| Income Tax [Line Items] | ||||
| State - Current | 111 | 53 | 53 | |
| State - Deferred | (14) | 53 | 55 | |
| Federal - Current | 187 | 110 | 43 | |
| Federal - Deferred | 241 | 318 | 413 | |
| Amortization of investment tax credits | (5) | (5) | (6) | |
| Total charge to income tax expense | $ 7 | $ 520 | $ 529 | $ 558 |
| 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 $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Income Tax Contingency [Line Items] | ||
| Depreciation | $ 4,602 | $ 4,210 |
| Regulatory asset - future income tax | 2,294.0 | 2,061.0 |
| State income tax | 1,111 | 1,060 |
| Unrecognized pension and other postretirement costs | 1,109 | 2,312 |
| Pension | 674 | 736 |
| Capitalized overheads | 566 | 565 |
| Unamortized investment tax credits | 43 | 49 |
| Other | 1,048 | 931 |
| Total deferred tax liabilities | 11,447 | 11,924 |
| Unrecognized pension and other postretirement costs | 1,109 | 2,312 |
| Regulatory liability - future income tax | 126 | 126 |
| State income tax | 555 | 382 |
| Loss carryforwards | 12 | 252 |
| Loss carryforwards, valuation reserve | (12) | (15) |
| Other | 1,313 | 791 |
| Total deferred tax assets | 3,103 | 3,848 |
| Net deferred tax liabilities and investment tax credits | 8,344 | 8,076 |
| Deferred income taxes and investment tax credits - noncurrent | 8,466 | 8,372 |
| Deferred tax assets - current | (122) | (296) |
| Net deferred tax liabilities and investment tax credits | 8,344 | 8,076 |
|
CECONY [Member]
|
||
| Income Tax Contingency [Line Items] | ||
| Depreciation | 4,277 | 3,909 |
| Regulatory asset - future income tax | 2,165.0 | 1,962.0 |
| State income tax | 1,008 | 897 |
| Unrecognized pension and other postretirement costs | 1,060 | 2,202 |
| Pension | 667 | 730 |
| Capitalized overheads | 501 | 496 |
| Unamortized investment tax credits | 42 | 47 |
| Other | 869 | 528 |
| Total deferred tax liabilities | 10,589 | 10,771 |
| Unrecognized pension and other postretirement costs | 1,060 | 2,202 |
| Regulatory liability - future income tax | 112 | 117 |
| State income tax | 500 | 357 |
| Loss carryforwards | 136 | |
| Other | 1,185 | 700 |
| Total deferred tax assets | 2,857 | 3,512 |
| Net deferred tax liabilities and investment tax credits | 7,732 | 7,259 |
| Deferred income taxes and investment tax credits - noncurrent | 7,832 | 7,452 |
| Deferred tax assets - current | (100) | (193) |
| Net deferred tax liabilities and investment tax credits | $ 7,732 | $ 7,259 |
| X | ||||||||||
|
- Definition
Deferred income taxes and credits, Gross No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Assets, Pension and other postretirement costs No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Liabilities, Depreciation No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Liabilities Pension And Other Postretirement Costs No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Liabilities Pension Cost 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 from deferred income. 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 other capitalized costs not separately disclosed. 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 not separately disclosed. 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
Amount of deferred tax liability attributable to taxable temporary differences from tax deferred revenue or other income not separately disclosed. 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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Income Tax Contingency [Line Items] | |||
| Federal | 35.00% | 35.00% | 35.00% |
| State income tax | 4.00% | 4.00% | 5.00% |
| Cost of removal | (5.00%) | (4.00%) | (4.00%) |
| Manufacturing deduction | (1.00%) | ||
| Other | (2.00%) | (1.00%) | |
| Effective Tax Rate | 31.00% | 34.00% | 36.00% |
|
CECONY [Member]
|
|||
| Income Tax Contingency [Line Items] | |||
| Federal | 35.00% | 35.00% | 35.00% |
| State income tax | 5.00% | 4.00% | 5.00% |
| Cost of removal | (5.00%) | (4.00%) | (4.00%) |
| Manufacturing deduction | |||
| Other | (1.00%) | (1.00%) | |
| Effective Tax Rate | 34.00% | 34.00% | 36.00% |
| 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 $)
In Millions, unless otherwise specified |
1 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Jun. 30, 2013
|
Sep. 30, 2013
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Sep. 30, 2013
CECONY [Member]
|
Dec. 31, 2013
CECONY [Member]
|
Dec. 31, 2012
CECONY [Member]
|
Dec. 31, 2011
CECONY [Member]
|
Dec. 31, 2013
Con Edison [Member]
|
Dec. 31, 2013
New York State [Member]
|
Jan. 31, 2013
Federal and State [Member]
|
|
| Operating Loss Carryforwards [Line Items] | ||||||||||||
| Net operating loss carryforward | $ 529 | $ 213 | ||||||||||
| Net operating loss carryforward expire date | 2019 through 2033 | |||||||||||
| Deferred tax asset | 8,344 | 8,076 | 7,732 | 7,259 | 12 | |||||||
| Accrued liability for uncertain tax position | 72 | 72 | 66 | 66 | 249 | |||||||
| Decrease in estimated prior year liabilities | 249 | 86 | 57 | 43 | 74 | 52 | 42 | |||||
| Income tax benefits | 13 | 476 | 600 | 600 | 7 | 520 | 529 | 558 | 6 | |||
| Uncertain tax positions | 9 | |||||||||||
| Increase in noncurrent liabilities | 9 | |||||||||||
| Interest charges related to uncertain tax positions | 121 | |||||||||||
| Reduced interest expenses | 10 | |||||||||||
| Interest charges related to uncertain tax position, LILO transaction | 131 | |||||||||||
| Amount of interest and penalties in their consolidated income statements | 0 | 0 | ||||||||||
| Amount of interest and penalties in their consolidated balance sheets | 0 | 0 | ||||||||||
| Unrecognized tax benefits amount | $ 9 | |||||||||||
| 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
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
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
The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations. 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 increase (decrease) during the reporting period in other current operating liabilities not separately disclosed in the statement of cash flows. No definition available.
|
| X | ||||||||||
|
- Definition
The current portion of the amount recognized for uncertain tax positions as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The noncurrent portion of the amount recognized for uncertain tax positions as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| 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
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 |
1 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
|
Jun. 30, 2013
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Income Tax Contingency [Line Items] | ||||
| Balance at January 1 | $ 86 | $ 130 | $ 93 | |
| Additions based on tax positions related to the current year | 5 | 12 | 76 | |
| Additions based on tax positions of prior years | 253 | 4 | ||
| Reductions for tax positions of prior years | (249) | (86) | (57) | (43) |
| Settlements | (249) | 1 | ||
| Balance at December 31 | 9 | 86 | 130 | |
|
CECONY [Member]
|
||||
| Income Tax Contingency [Line Items] | ||||
| Balance at January 1 | 74 | 114 | 79 | |
| Additions based on tax positions related to the current year | 11 | 74 | ||
| Additions based on tax positions of prior years | 3 | |||
| Reductions for tax positions of prior years | (74) | (52) | (42) | |
| Settlements | 1 | |||
| Balance at December 31 | $ 74 | $ 114 | ||
| 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 $)
|
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2013
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Stock option awards, LTIP | 5,000,000 | |||
| Stock options vesting period | 3 years | |||
| Stock options granted | 0 | 0 | ||
| Intrinsic value for outstanding options | $ 6,000,000 | $ 8,000,000 | ||
| Intrinsic value for exercised options | 2,000,000 | 5,000,000 | ||
| Cash received for payment of the exercise price | 5,000,000 | 14,000,000 | ||
| Remaining contractual life, years | 1 year | |||
| Income tax benefit | 13,000,000 | 476,000,000 | 600,000,000 | 600,000,000 |
| Number of units issued | 32,114 | |||
| Number of units issued annually to each individual price | $ 59.16 | |||
| 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 | 864,281 | 665,718 | 721,520 | |
| Weighted average share price per share, on shares purchased on open market | $ 57.24 | $ 59.72 | $ 52.50 | |
|
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 | |||
|
Stock Options [Member]
|
||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Income tax benefit | 10,000,000 | 2,000,000 | ||
|
TSR Portion [Member]
|
||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Adjustment percentage used for Performance awards | 50.00% | |||
|
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 | 150.00% | |||
|
TSR Portion [Member] | Officers [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 | 200.00% | |||
|
Performance-Based Restricted Stock [Member]
|
||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Weighted average period | 1 | |||
| Common stock received upon vesting | 1 | |||
| Compensation expense to be recognized | 18,000,000 | |||
|
Restricted Stock Units [Member]
|
||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Stock options vesting period | 3 years | |||
|
Performance RSUs [Member]
|
||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Stock options vesting period | 3 years | |||
|
1996 Stock Option Plan [Member]
|
||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Stock option awards issued to officers and employees | 0 | |||
|
EIP Portion [Member]
|
||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Adjustment percentage used for Performance awards | 50.00% | |||
|
EIP 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% | |||
|
EIP Portion [Member] | Officers [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 | 200.00% | |||
|
CECONY [Member]
|
||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Intrinsic value for outstanding options | 5,000,000 | 6,000,000 | ||
| Income tax benefit | 7,000,000 | 520,000,000 | 529,000,000 | 558,000,000 |
|
CECONY [Member] | Time Based Awards [Member]
|
||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Total expense recognized in future periods | 1,000,000 | |||
| Weighted average period | 1 | |||
|
CECONY [Member] | Performance-Based Restricted Stock [Member]
|
||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Weighted average period | 1 | |||
| Compensation expense to be recognized | $ 15,000,000 | |||
|
Maximum [Member]
|
||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Stock option vesting period | 10 years | |||
| X | ||||||||||
|
- Definition
DeferredCompensationArrangementWithIndividualUnitsIssuedAnnuallyPerIndividualPrice 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 Years 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
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 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 noncash expense that represents the cost of restricted stock or unit distributed to employees as compensation. 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
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
Net number of share options (or share units) granted during the period. 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
|
| 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
|
| 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
Number of share instruments newly issued under a share-based compensation 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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | $ 24 | $ 16 | $ 52 |
| Income Tax Benefit | 10 | 6 | 21 |
|
Performance-Based Restricted Stock [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | 20 | 14 | 48 |
|
Time-Based Restricted Stock [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | 2 | 1 | 3 |
|
Non-Employee Director Stock Compensation [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | 2 | 1 | 1 |
|
CECONY [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | 22 | 15 | 48 |
| Income Tax Benefit | 9 | 6 | 20 |
|
CECONY [Member] | Performance-Based Restricted Stock [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | 18 | 13 | 44 |
|
CECONY [Member] | Time-Based Restricted Stock [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | 2 | 1 | 3 |
|
CECONY [Member] | Non-Employee Director Stock Compensation [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock-based compensation expense | $ 2 | $ 1 | $ 1 |
| 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 Awarded (Detail) (USD $)
|
12 Months Ended |
|---|---|
|
Dec. 31, 2013
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Outstanding Shares, Beginning Balance | 606,475 |
| Exercised, Shares | (123,165) |
| Forfeited, Shares | (2,000) |
| Outstanding Shares, Ending Balance | 481,310 |
| Weighted Average Exercise Price Outstanding, Beginning Balance | $ 43.008 |
| Weighted Average Exercise Price, Exercised | $ 41.539 |
| Weighted Average Exercise Price, Forfeited | $ 43.170 |
| Weighted Average Exercise Price Outstanding, Ending Balance | $ 43.383 |
|
CECONY [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Outstanding Shares, Beginning Balance | 481,175 |
| Exercised, Shares | (98,165) |
| Forfeited, Shares | (2,000) |
| Outstanding Shares, Ending Balance | 381,010 |
| Weighted Average Exercise Price Outstanding, Beginning Balance | $ 42.973 |
| Weighted Average Exercise Price, Exercised | $ 41.553 |
| Weighted Average Exercise Price, Forfeited | $ 43.170 |
| Weighted Average Exercise Price Outstanding, Ending Balance | $ 43.338 |
| 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 Stock Options Outstanding (Detail) (USD $)
|
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Remaining Contractual Life | 1 year | |
| Options Outstanding / Exercisable | 481,310 | 606,475 |
| Weighted Average Exercise Price | $ 43.383 | $ 43.008 |
|
2006 [Member]
|
||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Remaining Contractual Life | 2 years | |
| Options Outstanding / Exercisable | 201,700 | |
| Weighted Average Exercise Price | $ 43.768 | |
|
2005 [Member]
|
||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Remaining Contractual Life | 1 year | |
| Options Outstanding / Exercisable | 150,410 | |
| Weighted Average Exercise Price | $ 42.252 | |
|
2004 [Member]
|
||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Options Outstanding / Exercisable | 129,200 | |
| Weighted Average Exercise Price | $ 44.100 | |
|
2004 [Member] | Maximum [Member]
|
||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Remaining Contractual Life | 1 year | |
|
CECONY [Member]
|
||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Options Outstanding / Exercisable | 381,010 | 481,175 |
| Weighted Average Exercise Price | $ 43.338 | $ 42.973 |
|
CECONY [Member] | 2006 [Member]
|
||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Options Outstanding / Exercisable | 165,100 | |
| Weighted Average Exercise Price | $ 43.705 | |
|
CECONY [Member] | 2005 [Member]
|
||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Options Outstanding / Exercisable | 122,810 | |
| Weighted Average Exercise Price | $ 42.268 | |
|
CECONY [Member] | 2004 [Member]
|
||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Options Outstanding / Exercisable | 93,100 | |
| Weighted Average Exercise Price | $ 44.100 |
| X | ||||||||||
|
- Details
|
| 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 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 Changes in Status of Time-Based Awards (Detail) (Time Based Awards [Member], USD $)
|
12 Months Ended |
|---|---|
|
Dec. 31, 2013
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Non-vested Units, Beginning Balance | 65,140 |
| Granted, Units | 25,490 |
| Vested, Units | (22,538) |
| Forfeited, Units | (1,512) |
| Non-vested Units, Ending Balance | 66,580 |
| Weighted Average Grant Date Fair Value Non-vested, Beginning Balance | $ 51.339 |
| Weighted Average Grant Date Fair Value, Granted | $ 60.990 |
| Weighted Average Grant Date Fair Value, Vested | $ 45.432 |
| Weighted Average Grant Date Fair Value, Forfeited | $ 56.255 |
| Weighted Average Grant Date Fair Value Non-vested, Ending Balance | $ 56.921 |
|
CECONY [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Non-vested Units, Beginning Balance | 61,690 |
| Granted, Units | 24,290 |
| Vested, Units | (21,438) |
| Forfeited, Units | (1,512) |
| Non-vested Units, Ending Balance | 63,030 |
| Weighted Average Grant Date Fair Value Non-vested, Beginning Balance | $ 51.334 |
| Weighted Average Grant Date Fair Value, Granted | $ 60.988 |
| Weighted Average Grant Date Fair Value, Vested | $ 45.478 |
| Weighted Average Grant Date Fair Value, Forfeited | $ 56.255 |
| Weighted Average Grant Date Fair Value Non-vested, Ending Balance | $ 56.928 |
| 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 - Assumptions Used to Calculate Fair Value (Detail)
|
12 Months Ended |
|---|---|
|
Dec. 31, 2013
|
|
| Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] | |
| Risk-free interest rate, Maximum | 0.13% |
| Risk-free interest rate, Minimum | 5.17% |
| Expected term | 3 years |
| Expected volatility | 13.52% |
| 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 - Summary of Changes in Status of Performance RSUs' (Detail) (USD $)
|
12 Months Ended |
|---|---|
|
Dec. 31, 2013
|
|
|
EIP Portion [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Non-vested Units, Beginning Balance | 618,910 |
| Granted, Units | 231,435 |
| Vested, Units | (221,695) |
| Forfeited, Units | (67,851) |
| Non-vested Units, Ending Balance | 560,799 |
| Weighted Average Grant Date Fair Value Non-vested, Beginning Balance | $ 50.738 |
| Weighted Average Grant Date Fair Value, Granted | $ 57.829 |
| Weighted Average Grant Date Fair Value, Vested | $ 44.540 |
| Weighted Average Grant Date Fair Value, Forfeited | $ 57.359 |
| Weighted Average Grant Date Fair Value Non-vested, Ending Balance | $ 55.314 |
|
TSR Portion [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Non-vested Units, Beginning Balance | 618,910 |
| Granted, Units | 231,435 |
| Vested, Units | (221,695) |
| Forfeited, Units | (67,851) |
| Non-vested Units, Ending Balance | 560,799 |
| Weighted Average Grant Date Fair Value Non-vested, Beginning Balance | $ 44.659 |
| Weighted Average Grant Date Fair Value, Granted | $ 55.121 |
| Weighted Average Grant Date Fair Value, Vested | $ 41.340 |
| Weighted Average Grant Date Fair Value, Forfeited | $ 52.669 |
| Weighted Average Grant Date Fair Value Non-vested, Ending Balance | $ 49.319 |
|
CECONY [Member] | EIP Portion [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Non-vested Units, Beginning Balance | 502,701 |
| Granted, Units | 174,019 |
| Vested, Units | (178,549) |
| Forfeited, Units | (49,645) |
| Non-vested Units, Ending Balance | 448,526 |
| Weighted Average Grant Date Fair Value Non-vested, Beginning Balance | $ 50.783 |
| Weighted Average Grant Date Fair Value, Granted | $ 58.188 |
| Weighted Average Grant Date Fair Value, Vested | $ 44.540 |
| Weighted Average Grant Date Fair Value, Forfeited | $ 57.322 |
| Weighted Average Grant Date Fair Value Non-vested, Ending Balance | $ 55.416 |
|
CECONY [Member] | TSR Portion [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Non-vested Units, Beginning Balance | 502,701 |
| Granted, Units | 174,019 |
| Vested, Units | (178,549) |
| Forfeited, Units | (49,645) |
| Non-vested Units, Ending Balance | 448,526 |
| Weighted Average Grant Date Fair Value Non-vested, Beginning Balance | $ 44.681 |
| Weighted Average Grant Date Fair Value, Granted | $ 55.620 |
| Weighted Average Grant Date Fair Value, Vested | $ 41.340 |
| Weighted Average Grant Date Fair Value, Forfeited | $ 52.592 |
| Weighted Average Grant Date Fair Value Non-vested, Ending Balance | $ 49.377 |
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Weighted Average Grant Date Fair Value One No definition available.
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Weighted Average Grant Date Fair Values No definition available.
|
| 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
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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Segment Reporting Information [Line Items] | |||
| Operating revenues | $ 12,354 | $ 12,188 | $ 12,886 |
| Inter-segment revenues | |||
| Depreciation and amortization | 1,024 | 955 | 884 |
| Operating income | 2,244 | 2,339 | 2,239 |
| Interest charges | 719 | 604 | 594 |
| INCOME TAX EXPENSE | 504 | 594 | 617 |
| Total assets | 40,647 | 41,209 | 39,214 |
| Construction expenditures | 2,648 | 2,538 | 2,003 |
|
Competitive Energy Businesses [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 1,096 | 1,213 | 1,617 |
| Inter-segment revenues | 5 | 8 | 13 |
| Depreciation and amortization | 23 | 8 | 7 |
| Operating income | 63 | 125 | 46 |
| Interest charges | 135 | 1 | (1) |
| INCOME TAX EXPENSE | (41) | 52 | 20 |
| Total assets | 1,314 | 1,061 | 856 |
| Construction expenditures | 378 | 492 | 114 |
|
Other [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | (5) | (7) | (18) |
| Inter-segment revenues | (5) | (8) | (13) |
| Depreciation and amortization | (1) | ||
| Operating income | 1 | (2) | (4) |
| Interest charges | 26 | 27 | 27 |
| INCOME TAX EXPENSE | (6) | ||
| Total assets | 530 | 592 | 655 |
| Construction expenditures | |||
|
CECONY [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 10,430 | 10,187 | 10,432 |
| Inter-segment revenues | |||
| Depreciation and amortization | 946 | 894 | 829 |
| Operating income | 2,060 | 2,093 | 2,083 |
| Interest charges | 521 | 545 | 534 |
| INCOME TAX EXPENSE | 531 | 514 | 567 |
| Total assets | 36,258 | 36,885 | 35,218 |
| Construction expenditures | 2,135 | 1,909 | 1,778 |
|
CECONY [Member] | Operating Segments [Member] | CECONY-Electric [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 8,131 | 8,176 | 8,228 |
| Inter-segment revenues | 16 | 15 | 12 |
| Depreciation and amortization | 749 | 710 | 656 |
| Operating income | 1,595 | 1,693 | 1,695 |
| Interest charges | 402 | 423 | 414 |
| INCOME TAX EXPENSE | 380 | 393 | 481 |
| Total assets | 27,673 | 28,339 | 27,123 |
| Construction expenditures | 1,471 | 1,375 | 1,354 |
|
CECONY [Member] | Operating Segments [Member] | CECONY-Gas [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 1,616 | 1,415 | 1,521 |
| Inter-segment revenues | 5 | 5 | 5 |
| Depreciation and amortization | 130 | 120 | 110 |
| Operating income | 362 | 346 | 295 |
| Interest charges | 83 | 82 | 78 |
| INCOME TAX EXPENSE | 112 | 99 | 43 |
| Total assets | 6,008 | 5,925 | 5,518 |
| Construction expenditures | 536 | 426 | 335 |
|
CECONY [Member] | Operating Segments [Member] | CECONY-Steam [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 683 | 596 | 683 |
| Inter-segment revenues | 82 | 77 | 79 |
| Depreciation and amortization | 67 | 64 | 63 |
| Operating income | 103 | 54 | 93 |
| Interest charges | 36 | 40 | 42 |
| INCOME TAX EXPENSE | 39 | 22 | 43 |
| Total assets | 2,577 | 2,621 | 2,577 |
| Construction expenditures | 128 | 108 | 89 |
|
CECONY [Member] | Consolidation Adjustments [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | |||
| Inter-segment revenues | (103) | (97) | (96) |
| Depreciation and amortization | |||
| Operating income | |||
| Interest charges | |||
| INCOME TAX EXPENSE | |||
| Total assets | |||
| Construction expenditures | |||
|
O&R [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 833 | 795 | 855 |
| Inter-segment revenues | |||
| Depreciation and amortization | 56 | 53 | 48 |
| Operating income | 120 | 123 | 114 |
| Interest charges | 37 | 31 | 34 |
| INCOME TAX EXPENSE | 20 | 28 | 30 |
| Total assets | 2,545 | 2,671 | 2,485 |
| Construction expenditures | 135 | 137 | 111 |
|
O&R [Member] | Operating Segments [Member] | O&R-Electric [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 628 | 592 | 641 |
| Inter-segment revenues | |||
| Depreciation and amortization | 41 | 38 | 35 |
| Operating income | 87 | 83 | 81 |
| Interest charges | 25 | 19 | 20 |
| INCOME TAX EXPENSE | 13 | 17 | 21 |
| Total assets | 1,898 | 1,960 | 1,755 |
| Construction expenditures | 98 | 98 | 79 |
|
O&R [Member] | Operating Segments [Member] | O&R - Gas [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | 205 | 203 | 214 |
| Inter-segment revenues | |||
| Depreciation and amortization | 15 | 15 | 13 |
| Operating income | 33 | 40 | 33 |
| Interest charges | 11 | 10 | 12 |
| INCOME TAX EXPENSE | 7 | 11 | 9 |
| Total assets | 645 | 706 | 722 |
| Construction expenditures | 37 | 39 | 32 |
|
O&R [Member] | Operating Segments [Member] | O&R - Other [Member]
|
|||
| Segment Reporting Information [Line Items] | |||
| Operating revenues | |||
| Inter-segment revenues | |||
| Depreciation and amortization | |||
| Operating income | |||
| Interest charges | 1 | 2 | 2 |
| INCOME TAX EXPENSE | |||
| Total assets | 2 | 5 | 8 |
| Construction expenditures | |||
| X | ||||||||||
|
- Definition
Inter Segment Revenues No definition available.
|
| X | ||||||||||
|
- Definition
Operating Income Tax Expense Benefit No definition available.
|
| X | ||||||||||
|
- Definition
The net of assets and liabilities. 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
Amount of the cost of borrowed funds accounted for as interest expense. 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
|
|
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, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | $ 53 | $ (90) |
| Gross Amounts Offset in the Statement of Financial Position | (3) | 47 |
| Net Amounts of Assets/(Liabilities) Presented in the Statement of Financial Position | 50 | (43) |
| Net Amount | 50 | (43) |
|
Derivative Assets [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | 166 | 86 |
| Gross Amounts Offset in the Statement of Financial Position | (101) | (57) |
| Net Amounts of Assets/(Liabilities) Presented in the Statement of Financial Position | 65 | 29 |
| Net Amount | 65 | 29 |
|
Derivative Liabilities [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | (113) | (176) |
| Gross Amounts Offset in the Statement of Financial Position | 98 | 104 |
| Net Amounts of Assets/(Liabilities) Presented in the Statement of Financial Position | (15) | (72) |
| Net Amount | (15) | (72) |
|
Financial Instruments [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts Not Offset in the Statement of Financial Position | ||
|
Financial Instruments [Member] | Derivative Assets [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts Not Offset in the Statement of Financial Position | ||
|
Financial Instruments [Member] | Derivative Liabilities [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts Not Offset in the Statement of Financial Position | ||
|
Cash Collateral Received [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts Not Offset in the Statement of Financial Position | ||
|
Cash Collateral Received [Member] | Derivative Assets [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts Not Offset in the Statement of Financial Position | ||
|
Cash Collateral Received [Member] | Derivative Liabilities [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts Not Offset in the Statement of Financial Position | ||
|
CECONY [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | (10) | (56) |
| Gross Amounts Offset in the Statement of Financial Position | 5 | 29 |
| Net Amounts of Assets/(Liabilities) Presented in the Statement of Financial Position | (5) | (27) |
| Net Amount | (5) | (27) |
|
CECONY [Member] | Derivative Assets [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | 41 | 27 |
| Gross Amounts Offset in the Statement of Financial Position | (32) | (15) |
| Net Amounts of Assets/(Liabilities) Presented in the Statement of Financial Position | 9 | 12 |
| Net Amount | 9 | 12 |
|
CECONY [Member] | Derivative Liabilities [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts of Recognized Assets/(Liabilities) | (51) | (83) |
| Gross Amounts Offset in the Statement of Financial Position | 37 | 44 |
| Net Amounts of Assets/(Liabilities) Presented in the Statement of Financial Position | (14) | (39) |
| Net Amount | (14) | (39) |
|
CECONY [Member] | Financial Instruments [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts Not Offset in the Statement of Financial Position | ||
|
CECONY [Member] | Financial Instruments [Member] | Derivative Assets [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts Not Offset in the Statement of Financial Position | ||
|
CECONY [Member] | Financial Instruments [Member] | Derivative Liabilities [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts Not Offset in the Statement of Financial Position | ||
|
CECONY [Member] | Cash Collateral Received [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts Not Offset in the Statement of Financial Position | ||
|
CECONY [Member] | Cash Collateral Received [Member] | Derivative Assets [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts Not Offset in the Statement of Financial Position | ||
|
CECONY [Member] | Cash Collateral Received [Member] | Derivative Liabilities [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Gross Amounts Not Offset in the Statement of Financial Position |
| X | ||||||||||
|
- Definition
Derivative Liability, Gross Amount Offset in Balance Sheet No definition available.
|
| X | ||||||||||
|
- Definition
Financial Instruments Derivative Gross Amount Not Offset No definition available.
|
| X | ||||||||||
|
- Definition
Gross Amounts of Recognized Assets Liabilities No definition available.
|
| X | ||||||||||
|
- Definition
Net Amounts Of Assets Presented In Balance Sheet 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, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Derivatives, Fair Value [Line Items] | ||
| Margin deposits | $ 17 | $ 37 |
|
CECONY [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Margin deposits | $ 16 | $ 18 |
| 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 - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 31, 2013
Contract
|
|
| Investment Holdings [Line Items] | |
| Energy supply and hedging activities credit exposure total | $ 164 |
| Makeup of net credit exposure with investment-grade counterparties | 33 |
| Makeup of net credit exposure with commodity exchange brokers | 46 |
| Makeup of net credit exposure independent system operators | 84 |
| Makeup of net credit exposure non-investment grade/non-rated counterparties | 1 |
| Number of Capacity Contracts | 1,116 |
| Terminate date of interest rate swap | October 2014 |
|
Interest Rate Swap [Member]
|
|
| Investment Holdings [Line Items] | |
| Derivative, fixed interest rate | 6.09% |
| Unrealized gain (loss) on derivatives | 2 |
| Increase in the fair value of derivative | 4 |
|
CECONY [Member]
|
|
| Investment Holdings [Line Items] | |
| Energy supply and hedging activities credit exposure total | 20 |
| Makeup of net credit exposure with investment-grade counterparties | 3 |
| Makeup of net credit exposure with commodity exchange brokers | $ 17 |
| Number of Capacity Contracts | 547 |
| X | ||||||||||
|
- Definition
Change In Fair Value Of Interest Rate Swaps No definition available.
|
| X | ||||||||||
|
- Definition
Credit Exposure Independent System Operators No definition available.
|
| X | ||||||||||
|
- Definition
Credit exposure nonrated counterparties No definition available.
|
| X | ||||||||||
|
- Definition
Interest Rate Swap Termination Date 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
Number of Capacity Contracts 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 | ||||||||||
|
- Definition
Fixed interest rate related to the interest rate derivative. No definition available.
|
| 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 - Fair Values of Companies' Commodity Derivatives (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Derivative Liabilities | ||
| Fair value of derivative liabilities | $ 113 | $ 176 |
| Impact of netting | (98) | (104) |
| Net derivatives liabilities | 15 | 72 |
|
Derivatives Assets [Member]
|
||
| Derivative Assets | ||
| Fair value of derivative assets | 166 | 86 |
| Impact of netting | (84) | (20) |
| Net derivatives assets | 82 | 66 |
|
Derivatives Assets [Member] | Other Current Assets [Member]
|
||
| Derivative Assets | ||
| Fair value of derivative assets | 134 | 64 |
|
Derivatives Assets [Member] | Other Deferred Charges and Noncurrent Assets [Member]
|
||
| Derivative Assets | ||
| Fair value of derivative assets | 32 | 22 |
|
Derivatives Liabilities [Member] | Fair Value of Derivative Liabilities, Current [Member]
|
||
| Derivative Liabilities | ||
| Fair value of derivative liabilities | 82 | 122 |
|
Derivatives Liabilities [Member] | Fair Value of Derivative Liabilities, Long-term [Member]
|
||
| Derivative Liabilities | ||
| Fair value of derivative liabilities | 31 | 54 |
|
CECONY [Member]
|
||
| Derivative Liabilities | ||
| Fair value of derivative liabilities | 51 | 83 |
| Impact of netting | (37) | (44) |
| Net derivatives liabilities | 14 | 39 |
|
CECONY [Member] | Derivatives Assets [Member]
|
||
| Derivative Assets | ||
| Fair value of derivative assets | 41 | 27 |
| Impact of netting | (16) | 3 |
| Net derivatives assets | 25 | 30 |
|
CECONY [Member] | Derivatives Assets [Member] | Other Current Assets [Member]
|
||
| Derivative Assets | ||
| Fair value of derivative assets | 27 | 18 |
|
CECONY [Member] | Derivatives Assets [Member] | Other Deferred Charges and Noncurrent Assets [Member]
|
||
| Derivative Assets | ||
| Fair value of derivative assets | 14 | 9 |
|
CECONY [Member] | Derivatives Liabilities [Member] | Fair Value of Derivative Liabilities, Current [Member]
|
||
| Derivative Liabilities | ||
| Fair value of derivative liabilities | 32 | 58 |
|
CECONY [Member] | Derivatives Liabilities [Member] | Fair Value of Derivative Liabilities, Long-term [Member]
|
||
| Derivative Liabilities | ||
| Fair value of derivative liabilities | $ 19 | $ 25 |
| X | ||||||||||
|
- Definition
Derivative Asset Not Designated As Hedging Instrument Fair Value Net After Offset Under Master Netting Agreement No definition available.
|
| X | ||||||||||
|
- Definition
Derivative Liability Not Designated As Hedging Instrument Fair Value Net After Offset Under Master Netting Agreement No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Fair value of 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, elected not to be offset against an obligation to return collateral under a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fair value of 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 offset against an obligation to return collateral. 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 of 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, elected not to be offset against a right to receive collateral under a master netting arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fair value of 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 offset against the right to receive collateral. 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
|
|
Derivative Instruments and Hedging Activities - Changes in Fair Values of Commodity Derivatives (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | $ 14 | $ (1) |
| Total deferred gains/(losses) | 35 | (108) |
| Net deferred gains/(losses) | 49 | (109) |
| Pre-tax gain/(loss) recognized in income | ||
| Total pre-tax gain/(loss) recognized in income | 72 | (70) |
|
Deferred Derivative Gains, Current [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | 14 | (1) |
|
Regulatory Liabilities, Long-term [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | ||
|
Deferred Derivative Losses, Current [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | 47 | 95 |
|
Recoverable Energy Costs, Current [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | (39) | (220) |
|
Long-term [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | 27 | 17 |
|
CECONY [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | 11 | (1) |
| Total deferred gains/(losses) | 14 | (88) |
| Net deferred gains/(losses) | 25 | (89) |
| Pre-tax gain/(loss) recognized in income | ||
| Total pre-tax gain/(loss) recognized in income | ||
|
CECONY [Member] | Deferred Derivative Gains, Current [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | 11 | (1) |
|
CECONY [Member] | Regulatory Liabilities, Long-term [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | ||
|
CECONY [Member] | Deferred Derivative Losses, Current [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | 38 | 80 |
|
CECONY [Member] | Recoverable Energy Costs, Current [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | (37) | (192) |
|
CECONY [Member] | Long-term [Member]
|
||
| Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations: | ||
| Total deferred gains/(losses) | 13 | 24 |
|
Purchased Power Expense [Member]
|
||
| Pre-tax gain/(loss) recognized in income | ||
| Total pre-tax gain/(loss) recognized in income | 90 | (54) |
|
Purchased Power Expense [Member] | CECONY [Member]
|
||
| Pre-tax gain/(loss) recognized in income | ||
| Total pre-tax gain/(loss) recognized in income | ||
|
Gas Purchased for Resale [Member]
|
||
| Pre-tax gain/(loss) recognized in income | ||
| Total pre-tax gain/(loss) recognized in income | (27) | (5) |
|
Gas Purchased for Resale [Member] | CECONY [Member]
|
||
| Pre-tax gain/(loss) recognized in income | ||
| Total pre-tax gain/(loss) recognized in income | ||
|
Non-utility Revenue [Member]
|
||
| Pre-tax gain/(loss) recognized in income | ||
| Total pre-tax gain/(loss) recognized in income | 9 | (11) |
|
Non-utility Revenue [Member] | CECONY [Member]
|
||
| Pre-tax gain/(loss) recognized in income | ||
| Total pre-tax gain/(loss) recognized in income | ||
| 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 - Changes in Fair Values of Commodity Derivatives (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
|
Purchased Power Expense [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Unrealized gain/(loss) on derivatives | $ 74 | $ 82 |
|
Non Utility Operating Revenue [Member]
|
||
| Derivatives, Fair Value [Line Items] | ||
| Unrealized gain/(loss) on derivatives | $ (14) | |
| 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 - Number of Derivative Contracts by Commodity Type (Detail)
|
12 Months Ended |
|---|---|
|
Dec. 31, 2013
Contract
|
|
| Derivatives, Fair Value [Line Items] | |
| Number of Capacity Contracts | 1,116 |
|
CECONY [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Number of Capacity Contracts | 547 |
|
Electric Derivatives [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Number of Energy Contracts | 501 |
| MWHs | 16,143,806 |
| Number of Capacity Contracts | 61 |
| MWs | 6,376 |
|
Electric Derivatives [Member] | CECONY [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Number of Energy Contracts | 75 |
| MWHs | 3,075,850 |
| Number of Capacity Contracts | 4 |
| MWs | 1,200 |
|
Gas Derivatives [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Number of Energy Contracts | 554 |
| Dths | 74,672,185 |
| Number of Capacity Contracts | 1,116 |
|
Gas Derivatives [Member] | CECONY [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Number of Energy Contracts | 468 |
| Dths | 70,490,000 |
| Number of Capacity Contracts | 547 |
| X | ||||||||||
|
- Definition
Dths No definition available.
|
| X | ||||||||||
|
- Definition
MWHS No definition available.
|
| X | ||||||||||
|
- Definition
MW-Months No definition available.
|
| X | ||||||||||
|
- Definition
Number of Capacity Contracts No definition available.
|
| X | ||||||||||
|
- Definition
Number of Energy Contracts No definition available.
|
| X | ||||||||||
|
- Details
|
|
Derivative Instruments and Hedging Activities - Aggregate Fair Value of All Derivative Instruments with Credit-Risk-Related Contingent Features (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2013
|
|---|---|
| Derivatives, Fair Value [Line Items] | |
| Aggregate fair value - net liabilities | $ 17 |
| Collateral posted | |
|
Additional Collateral Required Due To Loss Of Unsecured Credit [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Collateral posted | 28 |
| Additional collateral | |
|
Additional Collateral Aggregate Fair Value Down below Investment Grade [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Collateral posted | 41 |
| Additional collateral | 11 |
|
CECONY [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Aggregate fair value - net liabilities | 14 |
| Collateral posted | |
|
CECONY [Member] | Additional Collateral Required Due To Loss Of Unsecured Credit [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Collateral posted | 15 |
| Additional collateral | |
|
CECONY [Member] | Additional Collateral Aggregate Fair Value Down below Investment Grade [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Collateral posted | 1 |
| Additional collateral | $ 9 |
| 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 All Derivative Instruments with Credit-Risk-Related Contingent Features (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2013
|
|---|---|
| Derivatives, Fair Value [Line Items] | |
| Collateral posted | |
|
Additional Collateral Required Due To Loss Of Unsecured Credit [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Collateral posted | 28 |
|
Additional Collateral Aggregate Fair Value Down below Investment Grade [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Collateral posted | 41 |
|
CECONY [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Collateral posted | |
|
CECONY [Member] | Additional Collateral Required Due To Loss Of Unsecured Credit [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Collateral posted | 15 |
|
CECONY [Member] | Additional Collateral Aggregate Fair Value Down below Investment Grade [Member]
|
|
| Derivatives, Fair Value [Line Items] | |
| Collateral posted | $ 1 |
| 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, 2013
|
Dec. 31, 2012
|
|---|---|---|
|
Con Edison [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | $ 336 | $ 279 |
| Total liabilities | 17 | 78 |
|
CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | 262 | 227 |
| Total liabilities | 14 | 39 |
|
Commodity [Member] | Con Edison [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 82 | 66 |
|
Commodity [Member] | Con Edison [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | 15 | 72 |
|
Commodity [Member] | CECONY [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 25 | 30 |
|
Commodity [Member] | CECONY [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | 14 | 39 |
|
Other Assets [Member] | Con Edison [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 254 | 213 |
|
Other Assets [Member] | CECONY [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 237 | 197 |
|
Interest Rate Contract [Member] | Con Edison [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | 2 | 6 |
|
Interest Rate Contract [Member] | CECONY [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | ||
|
Level 1 [Member] | Con Edison [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | 144 | 106 |
| Total liabilities | 5 | 12 |
|
Level 1 [Member] | CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | 137 | 99 |
| Total liabilities | 5 | 12 |
|
Level 1 [Member] | Commodity [Member] | Con Edison [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 3 | |
|
Level 1 [Member] | Commodity [Member] | Con Edison [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | 5 | 12 |
|
Level 1 [Member] | Commodity [Member] | CECONY [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 3 | |
|
Level 1 [Member] | Commodity [Member] | CECONY [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | 5 | 12 |
|
Level 1 [Member] | Other Assets [Member] | Con Edison [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 141 | 106 |
|
Level 1 [Member] | Other Assets [Member] | CECONY [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 134 | 99 |
|
Level 1 [Member] | Interest Rate Contract [Member] | Con Edison [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | ||
|
Level 1 [Member] | Interest Rate Contract [Member] | CECONY [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | ||
|
Level 2 [Member] | Con Edison [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | 243 | 150 |
| Total liabilities | 86 | 122 |
|
Level 2 [Member] | CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | 116 | 106 |
| Total liabilities | 27 | 62 |
|
Level 2 [Member] | Commodity [Member] | Con Edison [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 130 | 43 |
|
Level 2 [Member] | Commodity [Member] | Con Edison [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | 84 | 116 |
|
Level 2 [Member] | Commodity [Member] | CECONY [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 13 | 8 |
|
Level 2 [Member] | Commodity [Member] | CECONY [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | 27 | 62 |
|
Level 2 [Member] | Other Assets [Member] | Con Edison [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 113 | 107 |
|
Level 2 [Member] | Other Assets [Member] | CECONY [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 103 | 98 |
|
Level 2 [Member] | Interest Rate Contract [Member] | Con Edison [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | 2 | 6 |
|
Level 2 [Member] | Interest Rate Contract [Member] | CECONY [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | ||
|
Level 3 [Member] | Con Edison [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | 11 | 33 |
| Total liabilities | 2 | 38 |
|
Level 3 [Member] | CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | 6 | 10 |
| Total liabilities | ||
|
Level 3 [Member] | Commodity [Member] | Con Edison [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 11 | 33 |
|
Level 3 [Member] | Commodity [Member] | Con Edison [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | 2 | 38 |
|
Level 3 [Member] | Commodity [Member] | CECONY [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 6 | 10 |
|
Level 3 [Member] | Commodity [Member] | CECONY [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | ||
|
Level 3 [Member] | Other Assets [Member] | Con Edison [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | ||
|
Level 3 [Member] | Other Assets [Member] | CECONY [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | ||
|
Level 3 [Member] | Interest Rate Contract [Member] | Con Edison [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | ||
|
Level 3 [Member] | Interest Rate Contract [Member] | CECONY [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | ||
|
Netting Adjustments [Member] | Con Edison [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | (62) | (10) |
| Total liabilities | (76) | (94) |
|
Netting Adjustments [Member] | CECONY [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Total assets | 3 | 12 |
| Total liabilities | (18) | (35) |
|
Netting Adjustments [Member] | Commodity [Member] | Con Edison [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | (62) | (10) |
|
Netting Adjustments [Member] | Commodity [Member] | Con Edison [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | (76) | (94) |
|
Netting Adjustments [Member] | Commodity [Member] | CECONY [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | 3 | 12 |
|
Netting Adjustments [Member] | Commodity [Member] | CECONY [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | (18) | (35) |
|
Netting Adjustments [Member] | Other Assets [Member] | Con Edison [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | ||
|
Netting Adjustments [Member] | Other Assets [Member] | CECONY [Member] | Derivatives Assets [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative assets | ||
|
Netting Adjustments [Member] | Interest Rate Contract [Member] | Con Edison [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities | ||
|
Netting Adjustments [Member] | Interest Rate Contract [Member] | CECONY [Member] | Derivatives Liabilities [Member]
|
||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Derivative liabilities |
| 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 assets 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 $)
In Millions, unless otherwise specified |
12 Months Ended | 3 Months Ended | ||
|---|---|---|---|---|
|
Dec. 31, 2012
|
Mar. 31, 2012
Interest Rate Contract [Member]
|
Mar. 31, 2012
Con Edison [Member]
Other Assets [Member]
|
Mar. 31, 2012
CECONY [Member]
Other Assets [Member]
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
| Fair value measurement assets, transfers from Level 3 to Level 2 | $ 105 | $ 95 | ||
| Fair value measurement liabilities, transfers from Level 1 to Level 2 | 2 | |||
| Fair value measurement liabilities, transfers from Level 2 to Level 1 | 9 | |||
| Fair value measurement liabilities, transfers from Level 2 to Level 3 | 2 | |||
| Fair value measurement liabilities, transfers from Level 3 to Level 2 | $ 11 | $ 8 | ||
| X | ||||||||||
|
- Definition
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Assets Transfers From Level Three To Level Two No definition available.
|
| X | ||||||||||
|
- Definition
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Transfers From Level One To Level Two No definition available.
|
| X | ||||||||||
|
- Definition
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Transfers From Level Three To Level Two No definition available.
|
| X | ||||||||||
|
- Definition
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Transfers From Level Two To Level One No definition available.
|
| X | ||||||||||
|
- Definition
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Transfers From Level Two To Level Three No definition available.
|
| X | ||||||||||
|
- Details
|
|
Fair Value Measurements - Schedule of Commodity Derivatives (Detail) (USD $)
|
12 Months Ended |
|---|---|
|
Dec. 31, 2013
|
|
| 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 |
|
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 | (5.80%) |
|
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 | (102.40%) |
|
Minimum [Member] | Inter-Zonal Forward Price Curves and for Historical Zonal Losses [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range | $ (0.31) |
|
Minimum [Member] | Forward energy prices [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range | 27.75 |
|
Minimum [Member] | Forward capacity prices [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range | 9.50 |
|
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 | 36.50% |
|
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 | 49.10% |
|
Maximum [Member] | Inter-Zonal Forward Price Curves and for Historical Zonal Losses [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range | 10.25 |
|
Maximum [Member] | Forward energy prices [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Unobservable Inputs Range | 124.75 |
|
Level 3 [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Fair Value of commodity derivatives | 9,100,000 |
|
Level 3 [Member] | Electricity [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Fair Value of commodity derivatives | 100,000 |
|
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 | 9,000,000 |
|
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 | (5.80%) |
|
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 | (102.40%) |
|
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 | 36.50% |
|
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 | 49.10% |
|
CECONY [Member] | Level 3 [Member] | Transmission Congestion Contracts [Member]
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | |
| Fair Value of commodity derivatives | $ 6,500,000 |
| 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, 2013
|
Dec. 31, 2012
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Beginning Balance | $ 29 | |
| Included in Earnings | (110) | |
| Included in Regulatory Assets and Liabilities | 19 | |
| Purchases | 22 | |
| Issuances | ||
| Sales | ||
| Settlements | 123 | |
| Transfer In/Out of Level 3 | (88) | |
| Ending Balance | (5) | |
|
Commodity [Member]
|
||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Beginning Balance | (5) | (62) |
| Included in Earnings | 7 | (112) |
| Included in Regulatory Assets and Liabilities | 18 | 16 |
| Purchases | 17 | 22 |
| Issuances | ||
| Sales | ||
| Settlements | (28) | 122 |
| Transfer In/Out of Level 3 | 9 | |
| Ending Balance | 9 | (5) |
|
Interest Rate Contract [Member]
|
||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Beginning Balance | (8) | |
| Included in Earnings | (1) | |
| Included in Regulatory Assets and Liabilities | ||
| Purchases | ||
| Issuances | ||
| Sales | ||
| Settlements | 1 | |
| Transfer In/Out of Level 3 | 8 | |
| Ending Balance | ||
|
Other Assets [Member]
|
||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Beginning Balance | 99 | |
| Included in Earnings | 3 | |
| Included in Regulatory Assets and Liabilities | 3 | |
| Purchases | ||
| Issuances | ||
| Sales | ||
| Settlements | ||
| Transfer In/Out of Level 3 | (105) | |
| Ending Balance | ||
|
CECONY [Member]
|
||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Beginning Balance | 83 | |
| Included in Earnings | (29) | |
| Included in Regulatory Assets and Liabilities | 10 | |
| Purchases | 18 | |
| Issuances | ||
| Sales | ||
| Settlements | 14 | |
| Transfer In/Out of Level 3 | (86) | |
| Ending Balance | 10 | |
|
CECONY [Member] | Commodity [Member]
|
||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Beginning Balance | 10 | (7) |
| Included in Earnings | 7 | (32) |
| Included in Regulatory Assets and Liabilities | (1) | 8 |
| Purchases | 13 | 18 |
| Issuances | ||
| Sales | ||
| Settlements | (23) | 14 |
| Transfer In/Out of Level 3 | 9 | |
| Ending Balance | 6 | 10 |
|
CECONY [Member] | Other Assets [Member]
|
||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Beginning Balance | 90 | |
| Included in Earnings | 3 | |
| Included in Regulatory Assets and Liabilities | 2 | |
| Purchases | ||
| Issuances | ||
| Sales | ||
| Settlements | ||
| Transfer In/Out of Level 3 | (95) | |
| Ending Balance | ||
| 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 issuances 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 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 sale 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
Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy. No definition available.
|
| 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, 2013
|
Dec. 31, 2012
|
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Gain (loss) on Level 3 energy derivative assets | $ 110 | |
|
Other Income [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) | (12) |
|
Other Income [Member] | Competitive Energy Businesses [Member]
|
||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Gain (loss) on Level 3 energy derivative assets | (2) | |
| Gain (loss) on Level 3 energy derivative liabilities | (12) | |
|
Purchased Power Expense [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) | 3 | 46 |
|
Purchased Power Expense [Member] | Competitive Energy Businesses [Member]
|
||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Gain (loss) on Level 3 energy derivative assets | 5 | |
| Gain (loss) on Level 3 energy derivative liabilities | $ (46) | |
| 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 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 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 |
1 Months Ended | 12 Months Ended |
|---|---|---|
|
Aug. 31, 2011
|
Dec. 31, 2013
VIE
|
|
| Variable Interest Entity [Line Items] | ||
| Number of VIEs, long-term electricity purchase agreements | 5 | |
| Solar energy project cost | $ 90 | |
| Operation commenced date | Aug. 01, 2011 | |
| Assets related to Pilesgrove | 25 | |
| Additional financing obligation | 25 | |
|
CMS 2 [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Assets related to Pilesgrove | 75 | |
| Percentage of variable interests | 50.00% | |
|
CMS 2 [Member] | Nevada [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Solar energy project | 150 | |
| Solar energy in service | 92 | |
|
MS 1 [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Assets related to Pilesgrove | $ 104 | |
| Percentage of variable interests | 50.00% | |
|
MS 1 [Member] | Arizona [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Solar energy project | 150 |
| X | ||||||||||
|
- Definition
Generating Capacity No definition available.
|
| X | ||||||||||
|
- Definition
Number Of Variable Interest Entities No definition available.
|
| X | ||||||||||
|
- Definition
Solar Energy In Service No definition available.
|
| X | ||||||||||
|
- Definition
Cost incurred in providing energy services during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Date the operations of the entity commenced, in CCYY-MM-DD format. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Carrying amount of the assets in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount of the liabilities in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| 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 - Accrued Liability for Asset Retirement Obligations and Regulatory Liabilities (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Regulatory Liabilities [Line Items] | ||
| Accrued liability - asset retirement obligations | $ 143 | $ 159 |
| Regulatory liabilities - allowance for cost of removal less salvage | 1,728 | 1,202 |
|
Allowance for Cost Removal Less Salvage [Member]
|
||
| Regulatory Liabilities [Line Items] | ||
| Regulatory liabilities - allowance for cost of removal less salvage | 540 | 503 |
|
CECONY [Member]
|
||
| Regulatory Liabilities [Line Items] | ||
| Accrued liability - asset retirement obligations | 143 | 158 |
| Regulatory liabilities - allowance for cost of removal less salvage | 1,598 | 1,077 |
|
CECONY [Member] | Allowance for Cost Removal Less Salvage [Member]
|
||
| Regulatory Liabilities [Line Items] | ||
| Regulatory liabilities - allowance for cost of removal less salvage | $ 453 | $ 420 |
| 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
|
| 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
|
|
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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
|
CECONY [Member]
|
|||
| Cost of services provided | $ 84 | $ 83 | $ 79 |
| Cost of services received | $ 52 | $ 49 | $ 48 |
| X | ||||||||||
|
- Definition
Payment Charged To Cost Of Revenues 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
|
|
Related Party Transactions - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
|
CECONY [Member]
|
|||
| Sale of natural gas | $ 123 | $ 54 | $ 81 |
| Funding limit of CECONY to O&R | 250 | ||
|
O&R [Member]
|
|||
| 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.
|
|
Schedule I - Condensed Financial Information - Condensed Income Statement (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Other Items Net Interest And Other Financial Income [Line Items] | |||
| Other income (deductions), net of taxes | $ 13 | $ 6 | $ 17 |
| Interest expense | (719) | (604) | (594) |
| NET INCOME FOR COMMON STOCK | 1,062 | 1,138 | 1,051 |
| Comprehensive Income for Common Stock | 1,090 | 1,143 | 1,033 |
| Net Income Per Common Share - Basic | $ 3.62 | $ 3.88 | $ 3.59 |
| Net Income Per Common Share - Diluted | $ 3.61 | $ 3.86 | $ 3.57 |
| DIVIDENDS DECLARED PER SHARE OF COMMON STOCK | $ 2.46 | $ 2.42 | $ 2.40 |
| Average Number Of Shares Outstanding-Basic | 292.9 | 292.9 | 292.6 |
| Average Number Of Shares Outstanding-Diluted | 294.4 | 294.5 | 294.4 |
|
Parent Company [Member]
|
|||
| Other Items Net Interest And Other Financial Income [Line Items] | |||
| Equity in earnings of subsidiaries | 1,062 | 1,154 | 1,064 |
| Other income (deductions), net of taxes | 29 | 12 | 15 |
| Interest expense | (29) | (28) | (28) |
| NET INCOME FOR COMMON STOCK | 1,062 | 1,138 | 1,051 |
| Comprehensive Income for Common Stock | $ 1,090 | $ 1,143 | $ 1,033 |
| Net Income Per Common Share - Basic | $ 3.62 | $ 3.88 | $ 3.59 |
| Net Income Per Common Share - Diluted | $ 3.61 | $ 3.86 | $ 3.57 |
| DIVIDENDS DECLARED PER SHARE OF COMMON STOCK | $ 2.46 | $ 2.42 | $ 2.40 |
| Average Number Of Shares Outstanding-Basic | 292.9 | 292.9 | 292.6 |
| Average Number Of Shares Outstanding-Diluted | 294.4 | 294.5 | 294.4 |
| X | ||||||||||
|
- Definition
Comprehensive Income Available to Common Stockholders, Net of Tax No definition available.
|
| X | ||||||||||
|
- Definition
Equity in earnings of subsidiaries 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
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 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
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 Income Statement (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Income Statement [Abstract] | ||
| Increase (decrease) in comprehensive income for common stock | $ 5 | $ (18) |
| X | ||||||||||
|
- Definition
Increase Decrease In Comprehensive Income Available To Common Stockholders Net Of Tax No definition available.
|
| X | ||||||||||
|
- Details
|
|
Schedule I - Condensed Financial Information - Condensed Statement of Cash Flows (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Supplemental Cash Flow Information [Line Items] | |||
| Net Income | $ 1,062 | $ 1,138 | $ 1,051 |
| Common stock dividends | 721 | 709 | 693 |
| Change in Assets: | |||
| Special deposits | (257) | (13) | (4) |
| Other - net | 34 | 40 | 55 |
| NET CASH FLOWS FROM OPERATING ACTIVITIES | 2,552 | 2,599 | 3,137 |
| INVESTING ACTIVITIES | |||
| NET CASH FLOWS USED IN INVESTING ACTIVITIES | (2,659) | (2,523) | (2,150) |
| FINANCING ACTIVITIES | |||
| Net proceeds of short-term debt | 912 | 539 | |
| Retirement of long-term debt | 709 | 305 | 4 |
| Common stock dividends | 721 | 709 | 693 |
| NET CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES | 387 | (330) | (677) |
| Net Change for the Period | 280 | (254) | 310 |
| BALANCE AT BEGINNING OF PERIOD | 394 | 648 | 338 |
| BALANCE AT END OF PERIOD | 674 | 394 | 648 |
|
Parent Company [Member]
|
|||
| Supplemental Cash Flow Information [Line Items] | |||
| Net Income | 1,062 | 1,138 | 1,051 |
| Common stock dividends | (721) | (709) | (693) |
| Equity in earnings of subsidiaries | (1,062) | (1,154) | (1,064) |
| Change in Assets: | |||
| Special deposits | (264) | ||
| Other - net | 166 | (208) | (67) |
| NET CASH FLOWS FROM OPERATING ACTIVITIES | 680 | 503 | 646 |
| INVESTING ACTIVITIES | |||
| Contributions to subsidiaries | (100) | ||
| NET CASH FLOWS USED IN INVESTING ACTIVITIES | (100) | ||
| FINANCING ACTIVITIES | |||
| Net proceeds of short-term debt | 58 | 115 | |
| Retirement of long-term debt | (1) | (1) | (1) |
| Issuance of common shares for stock plans, net of repurchases | (8) | (9) | 31 |
| Common stock dividends | (721) | (709) | (693) |
| NET CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES | (672) | (604) | (663) |
| Net Change for the Period | 8 | (201) | (17) |
| BALANCE AT BEGINNING OF PERIOD | 4 | 205 | 222 |
| BALANCE AT END OF PERIOD | 12 | 4 | 205 |
|
CECONY [Member]
|
|||
| Supplemental Cash Flow Information [Line Items] | |||
| Net Income | 1,020 | 1,014 | 978 |
| Change in Assets: | |||
| Other - net | (88) | (40) | 170 |
| NET CASH FLOWS FROM OPERATING ACTIVITIES | 2,643 | 2,346 | 2,933 |
| INVESTING ACTIVITIES | |||
| NET CASH FLOWS USED IN INVESTING ACTIVITIES | (2,417) | (1,958) | (1,947) |
| FINANCING ACTIVITIES | |||
| Retirement of long-term debt | 700 | 300 | |
| NET CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES | 54 | (407) | (692) |
| Net Change for the Period | 280 | (19) | 294 |
| BALANCE AT BEGINNING OF PERIOD | 353 | 372 | 78 |
| BALANCE AT END OF PERIOD | 633 | 353 | 372 |
|
CECONY [Member] | Parent Company [Member]
|
|||
| Supplemental Cash Flow Information [Line Items] | |||
| Common stock dividends | 728 | 682 | 681 |
| FINANCING ACTIVITIES | |||
| Common stock dividends | 728 | 682 | 681 |
|
O&R [Member] | Parent Company [Member]
|
|||
| Supplemental Cash Flow Information [Line Items] | |||
| Common stock dividends | 38 | 34 | 33 |
| FINANCING ACTIVITIES | |||
| Common stock dividends | 38 | 34 | 33 |
|
Competitive Energy Businesses [Member] | Parent Company [Member]
|
|||
| Supplemental Cash Flow Information [Line Items] | |||
| Common stock dividends | 12 | 11 | 12 |
| FINANCING ACTIVITIES | |||
| Common stock dividends | $ 12 | $ 11 | $ 12 |
| X | ||||||||||
|
- Definition
Equity in earnings of subsidiaries No definition available.
|
| 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 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
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 | ||||||||||
|
- 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) from financing activities, including 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) from investing activities, including 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, including 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 cash inflow from a 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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|---|---|---|---|---|
| CURRENT ASSETS | ||||
| Cash and temporary cash investments | $ 674 | $ 394 | $ 648 | $ 338 |
| Special deposits | 327 | 70 | ||
| Accounts receivable - other | 1,251 | 1,222 | ||
| Prepayments | 136 | 159 | ||
| Other current assets | 235 | 162 | ||
| TOTAL CURRENT ASSETS | 3,891 | 3,451 | ||
| Investments in subsidiaries and others | 461 | 467 | ||
| Goodwill | 429 | 429 | ||
| Other assets | 7,859 | 10,352 | ||
| TOTAL ASSETS | 40,647 | 41,209 | ||
| CURRENT LIABILITIES | ||||
| Long-term debt due within one year | 485 | 706 | ||
| Accounts payable | 1,017 | 1,215 | ||
| Accrued taxes | 476 | 162 | ||
| Other current liabilities | 478 | 542 | ||
| TOTAL CURRENT LIABILITIES | 4,730 | 3,945 | ||
| Noncurrent Liabilities | 13,183 | 15,333 | ||
| LONG-TERM DEBT | 10,489 | 10,062 | ||
| Shareholders' Equity | ||||
| Common stock | 12,245 | 11,869 | 11,436 | 11,061 |
| TOTAL LIABILITIES AND SHAREHOLDER'S EQUITY | 40,647 | 41,209 | ||
|
Parent Company [Member]
|
||||
| CURRENT ASSETS | ||||
| Cash and temporary cash investments | 12 | 4 | 205 | 222 |
| Special deposits | 315 | 51 | ||
| Accounts receivable - other | 185 | 88 | ||
| Accounts receivable from affiliated companies | 950 | 393 | ||
| Prepayments | 2 | 51 | ||
| Other current assets | 3 | |||
| TOTAL CURRENT ASSETS | 1,464 | 590 | ||
| Investments in subsidiaries and others | 11,954 | 11,642 | ||
| Goodwill | 406 | 406 | ||
| Deferred income tax | 14 | 20 | ||
| Other assets | 4 | 4 | ||
| TOTAL ASSETS | 13,842 | 12,662 | ||
| CURRENT LIABILITIES | ||||
| Long-term debt due within one year | 2 | 2 | ||
| Notes Payable | 173 | 115 | ||
| Accounts payable | 5 | |||
| Accounts payable to affiliated companies | 148 | 146 | ||
| Accrued taxes | 426 | 119 | ||
| Other current liabilities | 538 | 95 | ||
| TOTAL CURRENT LIABILITIES | 1,287 | 482 | ||
| Noncurrent Liabilities | ||||
| Total Liabilities | 1,287 | 482 | ||
| LONG-TERM DEBT | 310 | 311 | ||
| Shareholders' Equity | ||||
| Common stock | 5,027 | 5,023 | ||
| Retained earnings | 7,218 | 6,846 | ||
| Total Shareholders' Equity | 12,245 | 11,869 | ||
| TOTAL LIABILITIES AND SHAREHOLDER'S EQUITY | $ 13,842 | $ 12,662 |
| X | ||||||||||
|
- Definition
Total value of common stock equity No definition available.
|
| X | ||||||||||
|
- Definition
Total Other Assets 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
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
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 obligation due after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| 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 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, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Balance at Beginning of Period | $ 105 | $ 97 | $ 84 |
| Charged To Costs And Expenses | 86 | 96 | 99 |
| Charged To Other Accounts | |||
| Deductions | 88 | 88 | 86 |
| Balance At End of Period | 103 | 105 | 97 |
|
CECONY [Member]
|
|||
| Balance at Beginning of Period | 96 | 88 | 75 |
| Charged To Costs And Expenses | 82 | 90 | 91 |
| Charged To Other Accounts | |||
| Deductions | 83 | 82 | 78 |
| Balance At End of Period | $ 95 | $ 96 | $ 88 |
| 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
|