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Derivative Financial Instruments (Details) (Forward Contracts [Member]) In Millions	Sep. 30, 2011 RUB	Sep. 30, 2011 NOK	Sep. 30, 2011 SEK	Sep. 30, 2011 USD ($)	Sep. 30, 2011 SGD	Sep. 30, 2011 DKK	Sep. 30, 2011 BRL	Sep. 30, 2011 EUR (€)	Sep. 30, 2011 JPY (¥)	Sep. 30, 2011 GBP (£)	Dec. 31, 2010 RUB	Dec. 31, 2010 NOK	Dec. 31, 2010 SEK	Dec. 31, 2010 USD ($)	Dec. 31, 2010 SGD	Dec. 31, 2010 DKK	Dec. 31, 2010 BRL	Dec. 31, 2010 EUR (€)	Dec. 31, 2010 JPY (¥)	Dec. 31, 2010 GBP (£)
Outstanding Foreign Currency Forward Contracts
Foreign currency, Cash flow hedging		5,527	2	$ 389	3	65		€ 304	¥ 122	£ 6		4,983	0	$ 247	0	31		€ 122	¥ 0	£ 4
Foreign currency, Fair value hedging				0										1
Foreign currency, Non-designated hedging	683	1,544	19	$ 561	4	120	0	€ 97	¥ 351	£ 8	780	1,442	0	$ 328	0	115	0	€ 97	¥ 0	£ 8

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Outstanding Foreign Currency Forward Contracts.

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Fair value as of the balance sheet date of all foreign currency derivatives designated as cash flow hedging instruments.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.



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

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-Name Accounting Standards Codification

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-Section 50

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

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-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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Net fair value of all derivative instruments not designated as a hedging instrument.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10

-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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-Name Accounting Standards Codification

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