CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash Flows From Operating Activities
Net Loss	$ (186)	$ (52)
Loss from discontinued operations	1	3
Loss from continuing operations, net	(185)	(49)
Adjustments to reconcile loss to net cash used in operating activities:
Equity in income from unconsolidated affiliates	(17)	(12)
Distributions from unconsolidated affiliates	6	15
Depreciation and amortization	148	164
Deferred taxes and tax credits	(112)	(30)
Loss on disposal and asset impairments	26	0
Changes in operating assets and liabilities:
(Increase) decrease in margin and collateral deposits	(18)	9
Increase in receivables	(1)	0
Decrease (increase) in inventory	42	(22)
Increase in prepaid expenses and other	(9)	(12)
Increase in restricted cash and cash equivalents	(4)	(9)
Increase in rent payments in excess of levelized rent expense	(38)	(101)
(Decrease) increase in payables and other current liabilities	(159)	1
Increase in interest payable	3	0
Decrease in derivative assets and liabilities	(14)	(23)
Increase in other operating-assets	9	8
Increase in other operating-liabilities	(30)	(31)
Operating cash flow from continuing operations	(353)	(92)
Operating cash flow from discontinued operations	(1)	(3)
Net cash used in operating activities	(354)	(95)
Cash Flows From Financing Activities
Borrowings on long-term debt	99	76
Payments on debt	(25)	(28)
Borrowings under short-term debt	9	32
Cash contributions from noncontrolling interests	242	0
Cash dividends to noncontrolling interests	(7)	0
Payments to affiliates related to stock-based awards	(12)	(4)
Excess tax benefits related to stock-based exercises	1	1
Financing costs	(7)	0
Net cash provided by financing activities from continuing operations	300	77
Cash Flows From Investing Activities
Capital expenditures	(166)	(219)
Proceeds from return of capital and loan repayments and sale of assets	5	12
Proceeds from settlement of insurance claims	2	0
Investments in and loans to unconsolidated affiliates	0	(7)
(Increase) decrease in restricted deposits and restricted cash and cash equivalents	(69)	19
Investments in other assets	(9)	(29)
Net cash used in investing activities from continuing operations	(237)	(224)
Net decrease in cash and cash equivalents	(291)	(242)
Cash and cash equivalents at beginning of period	1,300	1,075
Cash and cash equivalents at end of period	$ 1,009	$ 833