Financial Instruments, Summary of Derivative Instruments Gain (Losses) (Details) (USD $) In Millions	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Summary of Derivative Instruments Gains (Losses) [Abstract]
Net gains recorded in AOCL expected to be reclassified to net income in the future			$ 40
Currency Losses Net	10	0	11	20
Interest Rate Contracts [Member] \| Interest Expense [Member] \| Fair Value Hedging [Member]
Summary of Derivative Instruments Gains (Losses) [Abstract]
Derivative Gain (Loss) Recognized in Income	0	35	16	113
Hedged Item Gain (Loss) Recognized in Income	0	(35)	(16)	(113)
Foreign exchange contracts - forwards [Member] \| Cost of Sales [Member] \| Cash Flow Hedging [Member]
Summary of Derivative Instruments Gains (Losses) [Abstract]
Gain (Loss) Reclassified from AOCI to Income	4	7	0	18
Foreign exchange contracts - forwards [Member] \| Other expense - Currency gains (losses), net [Member] \| Derivatives Not Designated as Hedging Instruments [Member]
Summary of Derivative Instruments Gains (Losses) [Abstract]
Derivative Gain (Loss) Recognized in Income	19	(2)	3	87
Foreign exchange contracts - forwards [Member] \| Cash Flow Hedging [Member]
Summary of Derivative Instruments Gains (Losses) [Abstract]
Derivative Gain (Loss) Recognized in OCI	$ 43	$ (2)	$ 19	$ 23

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

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The amount of net gains and losses recognized in income during the period on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges, on derivative instruments designated and qualifying as hedging instruments in cash flow hedges, and on derivative instruments not designated as hedging instruments.

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-Publisher FASB

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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Amount of unrealized gain (loss) included in earnings for the period related to the fair value of the hedged item in an interest rate fair value hedge, which was offset by the gain (loss) on the hedging instrument to the extent that the fair value hedge is determined to be effective.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Currency losses, net, includes the mark-to-market of the derivatives not designated as hedging instruments and the related cost of those derivatives as well as the re-measurement of foreign currency denominated assets and liabilities.

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