Fair Value Measurements Fair Value of Derivatives by Statement of Operations Location (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				12 Months Ended
	Sep. 30, 2011	Jun. 30, 2011	Sep. 30, 2010	Mar. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Derivative Instruments, Gain (Loss) [Line Items]
Impairment of Intangible Assets (Excluding Goodwill)	$ 9	$ 12	$ 5	$ 60	$ 21	$ 65	$ 12
Currency Hedge Contracts Liabilities					2,088	2,679
Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net					(95)	(30)	4
Gain (Loss) in AOCI for effective portion of cash flow hedges					(52)	(71)
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months					(36)
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net					2,209	2,398
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net					1
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net
Net gain (loss) from foreign currency transaction exposures					24	(68)
Foreign Currency Transaction Gain (Loss), Realized					(12)	(9)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net					(94)	(27)
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net					(66)	(74)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Expense [Member] | Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net						3
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Cost of products sold [Member] | Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net					(95)	(30)
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net					(66)	(74)
Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net					12	(77)
Not Designated as Hedging Instrument [Member] | Other, net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net					$ 12	$ (77)