Fair Value Measurements (Details in Tables) (USD $) In Millions, unless otherwise specified																	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 Designated as Hedging Instrument [Member]	Dec. 31, 2012 Designated as Hedging Instrument [Member]	Sep. 30, 2013 Designated as Hedging Instrument [Member] Prepaid And Other Current Assets [Member]	Dec. 31, 2012 Designated as Hedging Instrument [Member] Prepaid And Other Current Assets [Member]	Sep. 30, 2013 Designated as Hedging Instrument [Member] Other Long Term Assets [Member]	Dec. 31, 2012 Designated as Hedging Instrument [Member] Other Long Term Assets [Member]	Sep. 30, 2013 Designated as Hedging Instrument [Member] Other current liabilities [Member]	Dec. 31, 2012 Designated as Hedging Instrument [Member] Other current liabilities [Member]	Sep. 30, 2013 Designated as Hedging Instrument [Member] Other Long Term Liabilities [Member]	Dec. 31, 2012 Designated as Hedging Instrument [Member] Other Long Term Liabilities [Member]	Sep. 30, 2013 Not Designated as Hedging Instrument [Member] Prepaid And Other Current Assets [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Prepaid And Other Current Assets [Member]	Sep. 30, 2013 Not Designated as Hedging Instrument [Member] Other current liabilities [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Other current liabilities [Member]	Sep. 30, 2013 Other, net [Member] Not Designated as Hedging Instrument [Member]	Sep. 30, 2012 Other, net [Member] Not Designated as Hedging Instrument [Member]	Sep. 30, 2013 Other, net [Member] Not Designated as Hedging Instrument [Member]	Sep. 30, 2012 Other, net [Member] Not Designated as Hedging Instrument [Member]	Sep. 30, 2013 Cash Flow Hedging [Member] Designated as Hedging Instrument [Member]	Sep. 30, 2012 Cash Flow Hedging [Member] Designated as Hedging Instrument [Member]	Sep. 30, 2013 Cash Flow Hedging [Member] Designated as Hedging Instrument [Member]	Sep. 30, 2012 Cash Flow Hedging [Member] Designated as Hedging Instrument [Member]	Sep. 30, 2013 Cash Flow Hedging [Member] Cost of products sold [Member] Foreign Exchange Contract [Member] Designated as Hedging Instrument [Member]	Sep. 30, 2012 Cash Flow Hedging [Member] Cost of products sold [Member] Foreign Exchange Contract [Member] Designated as Hedging Instrument [Member]	Sep. 30, 2013 Cash Flow Hedging [Member] Cost of products sold [Member] Foreign Exchange Contract [Member] Designated as Hedging Instrument [Member]	Sep. 30, 2012 Cash Flow Hedging [Member] Cost of products sold [Member] Foreign Exchange Contract [Member] Designated as Hedging Instrument [Member]	Sep. 30, 2013 Fair Value, Inputs, Level 2 [Member]	Sep. 30, 2013 Fair Value, Measurements, Recurring [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member]	Sep. 30, 2013 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member]	Sep. 30, 2013 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member]	Sep. 30, 2013 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member]
Derivatives Fair Value [Line Items]
Money Market Funds, at Carrying Value																													$ 0	$ 155	$ 39	$ 0	$ 0	$ 155	$ 39		$ 0
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net																	12	(14)	66	0
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net																					(45)	(44)	144	2	(45)	(44)	144	2
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net																					15	(3)	15	(29)	15	(3)	15	(29)
Net gain (loss) from foreign currency transaction exposures																	(15)	11	(72)	(13)
Derivative Instruments in Hedges, Assets, at Fair Value			183	88	88	25	95	63
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value															27	27
Derivative Assets	200	121
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value													17	33
Derivative Instruments in Hedges, Liabilities, at Fair Value			17	30					8	20	9	10
Derivative Liabilities	44	57
Foreign Currency Transaction Gain (Loss), Realized																	(3)	(3)	(6)	(13)
Foreign Currency Contract, Asset, Fair Value Disclosure																														200	121	0	0	0	0	200	121
Assets, Fair Value Disclosure																														355	160	0	0	155	39	200	121
Foreign Currency Contracts, Liability, Fair Value Disclosure																														44	57	0	0	0	0	44	57
Accrued Contingent Consideration	536	663																												536	663	536	663	0	0	0	0
Liabilities, Fair Value Disclosure																														$ 580	$ 720	$ 536	$ 663	$ 0	$ 0	$ 44	$ 57