CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash Flows From Operating Activities
Net Loss	$ (82)	$ (20)
Loss from discontinued operations	1	2
Loss from continuing operations, net	(81)	(18)
Adjustments to reconcile loss to net cash provided by operating activities:
Equity in loss from unconsolidated affiliates	1	5
Distributions from unconsolidated affiliates	0	5
Depreciation and amortization	74	81
Deferred taxes and tax credits	(60)	(15)
Loss on disposal and asset impairments	14	0
Loss on sale of assets	1	0
Changes in operating assets and liabilities:
(Increase) decrease in margin and collateral deposits	(35)	13
Decrease in receivables	27	20
(Increase) decrease in inventory	34	(22)
(Increase) decrease in prepaid expenses and other	12	(2)
(Increase) decrease in restricted cash and cash equivalents	(7)	0
Increase in rent payments in excess of levelized rent expense	(38)	(32)
Increase (decrease) in payables and other current liabilities	(118)	(13)
Increase in interest payable	73	72
Decrease in derivative assets and liabilities	19	4
Increase in other operating-assets	3	0
Increase (decrease) in other operating-liabilities	(18)	16
Operating cash flow from continuing operations	(99)	114
Operating cash flow from discontinued operations	(1)	(2)
Net cash (used in) provided by operating activities	(100)	112
Cash Flows From Financing Activities
Borrowings on long-term debt	54	76
Payments on debt	(7)	(8)
Borrowings under short-term debt	0	32
Cash contributions from noncontrolling interests	242	0
Payments to affiliates related to stock-based awards	(5)	(2)
Financing costs	(3)	0
Net cash provided by financing activities from continuing operations	281	98
Cash Flows From Investing Activities
Capital expenditures	(86)	(105)
Proceeds from return of capital and loan repayments and sale of assets	1	9
Investments in and loans to unconsolidated affiliates	0	(4)
Increase in restricted deposits and restricted cash and cash equivalents	(86)	(1)
Investments in other assets	(3)	(1)
Net cash used in investing activities from continuing operations	(174)	(102)
Net increase in cash and cash equivalents	7	108
Cash and cash equivalents at beginning of period	1,300	1,075
Cash and cash equivalents at end of period	$ 1,307	$ 1,183