v2.4.0.6

Variable Interest Entities and Unconsolidated Investments (Equity Method Investment Summarized Financial Information) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Equity Method Investment, Summarized Financial Information, Assets [Abstract]
Equity Method Investment Summarized Financial Information Cash and Cash Equivalents	$ 64	$ 76
Equity Method Investment, Summarized Financial Information, Current Assets	30	37
Equity Method Investment, Summarized Financial Information, Property, Plant and Equipment, net	648	656
Equity Method Investment, Summarized Financial Information, Noncurrent Assets	4	3
Equity Method Investment, Summarized Financial Information, Assets	746	772
Equity Method Investment, Summarized Financial Information, Liabilities [Abstract]
Equity Method Investment, Summarized Financial Information, Current Maturities of Long-term Debt	25	24
Equity Method Investment, Summarized Financial Information, Current Liabilities	36	47
Equity Method Investment, Summarized Financial Information, Long-Term Debt	423	438
Equity Method Investment, Summarized Financial Information, Long-term Derivative Liabilities	84	85
Equity Method Investment, Summarized Financial Information, Liabilities	568	594
Equity Method Investment Summarized Financial Information, Equity [Abstract]
Equity Method Investment Summarized Financial Information, Equity	178	178
Equity Method Investment, Summarized Financial Information, Liabilities and Equity	746	772
Equity Method Investment, Summarized Financial Information, Gross Profit (Loss) [Abstract]
Equity Method Investment, Summarized Financial Information, Revenue	247	277	228
Equity Method Investment, Summarized Financial Information, Cost of Sales	171	208	183
Equity Method Investment, Summarized Financial Information, Gross Profit (Loss)	76	69	45
Equity Method Investment Summarized Financial Information Interest (Income) Expense	27	30	27
Equity Method Investment Summarized Financial Information Other (Income) Expense Net	(2)	2	0
Equity Method Investment, Summarized Financial Information, Net Income (Loss)	$ 51	$ 37	$ 18

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