After Tax Estimated Liability For State Administrative Settlement

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- Definition

Amount Deposited With IRS To Defray Potential Interest Costs

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- Definition

Capital Leases Accumulated Amortization

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- Definition

Gain Loss On Contract Termination After Tax

+ References

No definition available.

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- Definition

Increase Decrease In Net Income Loss

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No definition available.

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- Definition

Lease in lease out total financed by equity.

+ References

No definition available.

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- Definition

Lease In Lease Out Total Financed By Non Recourse Long Term Debt

+ References

No definition available.

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- Definition

Lease in lease out total investment.

+ References

No definition available.

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- Definition

Leveraged Lease Gross Investment In Leveraged Leases Disclosure Investment In Leveraged Leases Gross

+ References

No definition available.

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- Definition

Amount of deferred tax liability attributable to taxable temporary differences from leasing arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 6

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- Definition

The amount the liability recorded for the income tax examination increased or decreased in the current year/accounting period.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

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-Paragraph 15

-Subparagraph (c)

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- Definition

The amount of the additional liability or refund received or expected based on a final settlement with a taxing authority.

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- Definition

The net investment in arrangements meeting the criteria for classification as leveraged leases including deferred taxes.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

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- Definition

The amount of cash received during the period as refunds for the overpayment of taxes.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

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Leases - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended
Leases - Additional Information (Detail) (USD $)	Jan. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Leased Assets [Line Items]
Accumulated amortization		$ 1,800,000ed_CapitalLeasesAccumulatedAmortization	$ 1,000,000ed_CapitalLeasesAccumulatedAmortization
Lease In/Lease Out total investment		259,000,000ed_LeaseInLeaseOutInvestment
Lease In/Lease Out total financed by equity		93,000,000ed_LeaseInLeaseOutFinancedByEquity
Lease In/Lease Out total financed by long-term debt		166,000,000
Company's net investment in LILO transactions			0	(76,000,000)
Gross investment in leverage leases				228,000,000
Deferred tax liabilities				304,000,000
Estimated charge after-tax			150,000,000
Gain from LILO transaction termination			55,000,000
Decrease in net income		1,000,000ed_IncreaseDecreaseInNetIncomeLoss	95,000,000ed_IncreaseDecreaseInNetIncomeLoss
Defray of interest charges relating to potential tax liability	447,000,000
Refund from IRS			10,000,000us-gaap_ProceedsFromIncomeTaxRefunds
Settlement of tax and interest			38,000,000
Transaction One [Member]
Operating Leased Assets [Line Items]
Returned deposit from Internal Revenue Service (IRS)			125,000,000
Transaction Two [Member]
Operating Leased Assets [Line Items]
Returned deposit from Internal Revenue Service (IRS)			48,000,000
CECONY [Member]
Operating Leased Assets [Line Items]
Accumulated amortization		$ 800,000	$ 600,000