Hedges and Derivative Financial Instruments (Schedule of Outstanding Derivative Contracts) (Details) (USD $)	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010
Derivatives, Fair Value [Line Items]
Number of Interest Rate Derivatives Held
Derivative Assets, Current	$ 36,000,000		$ 135,000,000
Derivative Assets, Noncurrent	3,000,000		29,000,000
Total derivatives, hedge assets at fair value	39,000,000		164,000,000
Derivative Liabilities, Current	91,000,000		39,000,000
Derivative Liabilities, Noncurrent	5,000,000		0
Total derivatives, hedge liabilities at fair value	96,000,000		39,000,000
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional amount of foreign exchange forwards/options	862,000,000		909,000,000
Notional amount of commodity swaps/options	316,000,000		539,000,000
Notional Amount of Interest Rate Derivatives	250,000,000
Foreign exchange forward/options, hedge assets	24,000,000	[1]	13,000,000	[1]
Foreign Exchange Forwards/Options, Hedge Liability at Fair Value	19,000,000	[1]	31,000,000	[1]
Commodity Swaps/Options, Hedge Assets at Fair Value	9,000,000	[1]	129,000,000	[1]
Commodity Swaps/Options, Hedge Liabilities at Fair Value	28,000,000	[1]	2,000,000	[1]
Interest Rate Cash Flow Hedge Asset at Fair Value
Interest Rate Cash Flow Hedge Liability at Fair Value	5,000,000
Total derivatives accounted for as hedges, hedge assets at fair value	33,000,000		142,000,000
Total derivatives accounted for as hedges, hedge liabilities at fair value	52,000,000		33,000,000
Maximum term of foreign exchange forwards/options, in months	18		15
Maximum term of commodity swaps/options, in months	36		24
Maximum Length of Time Hedged in Interest Rate Cash Flow Hedge	6		0
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional amount of foreign exchange forwards/options	1,261,000,000		990,000,000
Notional amount of commodity swaps/options	3,000,000		13,000,000
Foreign Exchange Forwards/Options, Hedge Assets at Fair Value	6,000,000		11,000,000
Foreign Exchange Forwards/Options, Hedge Liabilities at Fair Value	43,000,000		3,000,000
Commodity swaps/options, hedge assets at fair value	0		11,000,000
Commodity Swaps/Options, hedge liabiilities at Fair Value	1,000,000		3,000,000
Total derivatives not accounted for as hedges, hedge assets at fair value	6,000,000		22,000,000
Total derivatives not accounted for as hedges, hedge liabilities at fair value	$ 44,000,000		$ 6,000,000
Maximum term of foreign exchange forwards/options, in months	3		10
Maximum term of commodity swaps/options, in months	11		12

[1] Derivatives accounted for as hedges are either considered cash flow (CF) or fair value (FV) hedges