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Commitments And Contingencies (Tables)

3 Months Ended

Mar. 31, 2012

Commitments And Contingencies [Abstract]

Schedule Of Undiscounted Future Expected Power Purchase Agreement Payments


(in millions)
2012			$ 1,810
2013			2,860
2014			3,010
2015			3,007
2016			2,917
Thereafter			32,120

Total			$ 45,724

Undiscounted Obligations For Natural Gas Purchases, Gas Transportation Services, And Gas Storage


(in millions)
2012			$ 475
2013			331
2014			196
2015			187
2016			153
Thereafter			974

Total			$ 2,316

Undiscounted Obligations For Nuclear Fuel Agreements


(in millions)
2012			$ 67
2013			86
2014			127
2015			193
2016			147
Thereafter			1,011

Total			$ 1,631

Change In Accruals Related To Third-Party Claims


(in millions)
Balance at January 1, 2010			$ 0
Loss accrued			220
Less: Payments			(6)

Balance at December 31, 2010			214
Additional loss accrued			155
Less: Payments			(92)

Balance at December 31, 2011			277
Less: Payments			(34)

Balance at March 31, 2012			$ 243

Environmental Remediation Liability Disclosure


(in millions)
Balance at December 31, 2011			$ 785
Additional remediation costs accrued:
Transfer to regulatory account for recovery			77
Amounts not recoverable in customer rates			81
Less: Payments			(22)

Balance at March 31, 2012			$ 921

- 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.

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- Definition

Tabular disclosure of a lessee's leasing arrangements including: (1) the basis on which contingent rental payments are determined, (2) the existence and terms of renewal or purchase options and escalation clauses, (3) restrictions imposed by lease arrangements, such as those concerning dividends, additional debt, and further leasing, (4) rent holidays, rent concessions, or leasehold improvement incentives and unusual provisions or conditions. Disclosure may also include the specific period used to amortize material leasehold improvements made at the inception of the lease or during the lease term. Additionally, for operating leases having initial or remaining noncancelable lease terms in excess of one year: (a) future minimum rental payments required as of the date of the latest balance sheet presented, in the aggregate and for each of the five succeeding fiscal years, (b) the total of minimum rentals to be received in the future under noncancelable subleases as of the date of the latest balance sheet presented, and (c) for all operating leases, rental expense for each period for which an income statement is presented, with separate amounts for minimum rentals, contingent rentals, and sublease rentals. Rental payments under leases with terms of a month or less that were not renewed need not be included.

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- Definition

Tabular disclosure of the activity in the reserve for settling insured claims and expenses incurred in the claims settlement process for the period. The estimated liability includes the amount of money that will be required for future payments of (a) claims that have been reported to the insurer, (b) claims related to insured events that have occurred but that have not been reported to the insurer as of the date the liability is estimated, and (c) claim adjustment expenses. Claim adjustment expenses include costs incurred in the claim settlement process such as legal fees; outside adjuster fees; and costs to record, process, and adjust claims.

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