Derivatives and Hedging (Details 2) (USD $) In Millions	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Derivative Instruments, Gain (Loss)
Amount of Gain (Loss) Recognized in AOCI, Interest rate contracts cash flow hedges	$ 1	$ (12)	$ (1)	$ (10)
Amount of Gain (Loss) Recognized in AOCI, Foreign exchange contracts cash flow hedges	(10)	41	(31)	(99)
Amount of Gain (Loss) Recognized in AOCI, cash flow hedges	(9)	29	(32)	(109)
Amount of Gain (Loss) Recognized in AOCI on Derivative, Foreign exchange contracts net investment hedges	13	(131)	(4)	74
Amount of Gain (Loss) Reclassified from AOCI into Income (Effective Portion), Interest rate contracts cash flow hedges		4	1	15
Amount of Gain (Loss) Reclassified from AOCI into Income (Effective Portion), Foreign exchange contracts cash flow hedges	3	22	(12)	(84)
Amount of Gain (Loss) Reclassified from AOCI into Income (Effective Portion), cash flow hedges	3	26	(11)	(69)
Amount of Gain (Loss) Recognized in Income on Derivative, foreign exchange contracts fair value hedges	2	(2)		10
Amount of Gain (Loss) Recognized in Income on Related Hedged Item	(3)	2	1	(9)
Estimated pretax losses currently included within Accumulated Other Comprehensive Loss that will be reclassified to earnings in next twelve months	27		27
Gain (Loss) on foreign exchange derivatives not designated or qualifying as hedges	$ (9)	$ 3	$ (9)	$ 7

The estimated net amount of unrealized gains (losses) on hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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Current period adjustment in other comprehensive income reflecting gains (losses) on foreign currency transactions that are designated as, and are effective as, hedges of a net investment in a foreign entity.

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- Definition

Amount of net unrealized gain or loss related to the change in fair value of interest rate derivatives designated as cash flow hedging instruments. Recorded in accumulated other comprehensive income to the extent that the cash flow hedge is determined to be effective.

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- Definition

Amount of gain (loss) from the increase (decrease) in fair value of foreign currency derivatives and nonderivative instruments designated as fair value hedging instruments which were recognized in earnings, net of offsets by the gain (loss) on the hedged item to the extent that the fair value hedge was determined to be effective.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 45

-Subparagraph a(1)

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- Definition

Amount of the increase or decrease in fair value during the period of the hedged item in a foreign currency fair value hedge which was recognized in earnings in the period, net of offsets by the gain (loss) on the hedging instrument to the extent that the fair value hedge was determined to be effective.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 45

-Subparagraph a(1)

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- Definition

The income statement location of the effective portion of net gain or loss reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 205G

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 44C

-Subparagraph b

-Clause 3

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- Definition

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.

+ References

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The amount of net gains (losses) on foreign currency cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 45

-Subparagraph b(2), b(4)

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- Definition

Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 44

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- Definition

The amount of net gains (losses) on interest rate cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 45

-Subparagraph b(1)

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Amount of net unrealized gain or loss related to the change in fair value of foreign currency exchange rate derivatives designated as cash flow hedging instruments. Recorded in accumulated other comprehensive income to the extent that the cash flow hedge is determined to be effective.

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