Fair Value Measurements Fair Value of Derivatives by Statement of Operations Location (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012	Jun. 30, 2012	Sep. 30, 2011	Jun. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Goodwill and intangible asset impairment losses in period	$ 761				$ 4,492
reduction of interest expense, related to amortization of previously terminated interest rate contracts	3				8
Notional Amount of Foreign Currency Cash Flow Hedge Derivatives	2,293				2,293		2,088
Impairment of Intangible Assets (Excluding Goodwill)	13	129	9	12	142	21
Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	3		28		29	74
Gain (Loss) in AOCI for effective portion of cash flow hedges	(34)				(34)		(52)
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	(31)				(31)
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net	1,808				1,808		2,209
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	10				10
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	(3)		(28)		(29)	(74)
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	(44)		29		2	(77)
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	(3)		(28)		(29)	(74)
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	(44)		29		2	(77)
Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(14)		8			2
Not Designated as Hedging Instrument [Member] | Other, net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) from foreign currency transaction exposures	(11)		12		13	11
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(14)		8			2
Foreign Currency Transaction Gain (Loss), Realized	$ 3		$ 4		$ 13	$ 9