Financial Instruments Derivatives Not Designated as Hedging, Fair Value Table (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items]
Cash collateral posted for derivative positions	$ 255		$ 148
Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items]
Asset Derivatives, Gross	18	[1]	29	[1]
Asset Derivatives, Netting across contract types	(17)	[1],[2]	(7)	[1],[2]
Asset Derivatives, Total	1	[1],[2]	22	[1],[2]
Not Designated as Hedging Instrument [Member] | Accrued Expenses and Other Liabilities [Member]
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items]
Liability Derivatives, Gross	687	[3]	168	[3]
Liability Derivatives, Netting across contract types	(17)	[2],[3]	(7)	[2],[3]
Liability Derivatives, Total	670	[2],[3]	161	[2],[3]
Not Designated as Hedging Instrument [Member] | Equity contracts | Other Assets [Member]
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items]
Asset Derivatives, Gross	0	[1]	21	[1]
Not Designated as Hedging Instrument [Member] | Equity contracts | Accrued Expenses and Other Liabilities [Member]
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items]
Liability Derivatives, Gross	654	[3]	35	[3]
Not Designated as Hedging Instrument [Member] | Foreign exchange contracts | Other Assets [Member]
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items]
Asset Derivatives, Gross	1	[1]	0	[1]
Not Designated as Hedging Instrument [Member] | Foreign exchange contracts | Accrued Expenses and Other Liabilities [Member]
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items]
Liability Derivatives, Gross	0	[3]	59	[3]
Not Designated as Hedging Instrument [Member] | Commodity contracts | Other Assets [Member]
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items]
Derivative Asset, Fair Value, Net	17	[1]	8	[1]
Not Designated as Hedging Instrument [Member] | Commodity contracts | Accrued Expenses and Other Liabilities [Member]
Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items]
Derivative Liability, Fair Value, Net	$ 33	[3]	$ 74	[3]

[1] Net asset derivatives are located within other assets in our consolidated balance sheets.

[2] Excludes netting of cash collateral received and posted. The total collateral posted at December 31, 2013 and 2012 was $255 million and $148 million, respectively, across all counterparties.

[3] Net liability derivatives are located within accrued expenses and other liabilities in our consolidated balance sheets.