Financial Instruments Derivatives Designated as Cash Flow Hedging Instruments Table (Details) (Designated as Hedging Instrument [Member], Cash Flow Hedging [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Gross	$ 2	[1]	$ 3	[1]
Asset Derivatives, Netting across contract types	(2)	[1]	(3)	[1]
Asset Derivatives, Total	0	[1]	0	[1]
Accrued Expenses and Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives, Gross	14	[2]	60	[2]
Liability Derivatives, Netting across contract types	(2)	[2]	(3)	[2]
Derivative contracts, Liabilities at fair value	12	[2]	57	[2]
Interest rate swap contracts | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Gross	0	[1]	0	[1]
Interest rate swap contracts | Accrued Expenses and Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives, Gross	13	[2]	44	[2]
Commodity contracts | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Gross	2	[1]	0	[1]
Commodity contracts | Accrued Expenses and Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives, Gross	1	[2]	16	[2]
Foreign exchange contracts | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Gross	0	[1]	3	[1]
Foreign exchange contracts | Accrued Expenses and Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives, Gross	$ 0	[2]	$ 0	[2]

[1] Located within other assets in our consolidated balance sheets.

[2] Located within accrued expenses and other liabilities in our consolidated balance sheets.