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Commitments (Tables)

12 Months Ended

Dec. 31, 2011

Operating Leases Of Lessee Disclosure Text Block

December 31,		Future Commitments for Operating Leases
		(in millions)
2012	.	$	57
2013	.		57
2014	.		55
2015	.		54
2016	.		54
Thereafter			730
Total		$	1,007

Capital Lease Commitments

December 31,		Future Minimum Lease Payments
		(in millions)
2012	.	$	14
2013	.		11
2014	.		10
2015	.		9
2016	.		9
Thereafter			125
Total		$	178
Less: Imputed interest			106
Present value of total minimum lease payments		$	72

Electricity Purchase Contract Commitment

December 31,		Future Commitments for Electricity Purchase Contracts
		(in millions)
2012	.	$	2,800
2013	.		2,412
2014	.		2,034
2015	.		1,995
2016	.		1,979
Thereafter			23,887
Total		$	35,107

Fuel Contract Commitments

December 31,		Future Commitments for Fuel Contracts
		(in millions)
2012	.	$	1,980
2013	.		1,187
2014	.		790
2015	.		663
2016	.		661
Thereafter			4,875
Total		$	10,156

Other Purchase Contract Commitment

December 31,		Future Commitments for Other Purchase Contracts
		(in millions)
2012	.	$	1,831
2013	.		1,454
2014	.		1,209
2015	.		968
2016	.		883
Thereafter			9,496
Total		$	15,841

- 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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