Fair Value Measurements Fair Value of Derivatives by Statement of Operations Location (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
reduction of interest expense, related to amortization of previously terminated interest rate contracts	$ 3		$ 5
Notional Amount of Foreign Currency Cash Flow Hedge Derivatives	2,318		2,318		2,088
Impairment of Intangible Assets (Excluding Goodwill)	129	12	129	12
Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	10	27	26	46
Gain (Loss) in AOCI for effective portion of cash flow hedges	(8)		(8)		(52)
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	(17)		(17)
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net	2,015		2,015		2,209
Net gain (loss) from foreign currency transaction exposures	19	3	25	1
Foreign Currency Transaction Gain (Loss), Realized	7	4	10	5
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	(10)	(27)	(26)	(46)
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	10	(60)	46	(107)
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	(10)	(27)	(26)	(46)
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	10	(60)	46	(107)
Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	12	(7)	15	(6)
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	$ (7)	$ 15	$ (6)