Hedging Activities (Effect Of Derivative Financial Instruments On Consolidated Financial Statements And Undesignated Derivatives) (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
Total Cash Flow Hedges [Member]
Derivatives Fair Value [Line Items]
(Loss)/gain recognized in OCI	$ (14)		$ (1)		$ 17		$ (19)
Gain/(loss) reclassified from accumulated OCI	5	[1]	(9)	[1]	9	[1]	(18)	[1]
Not Designated As Hedging Instruments [Member]
Derivatives Fair Value [Line Items]
(Loss)/gain recognized in income	(41)		(10)		97		133
Foreign Exchange Contracts [Member]
Derivatives Fair Value [Line Items]
(Loss)/gain recognized in OCI	(14)		(1)		17		(19)
Cost Of Sales [Member] | Total Cash Flow Hedges [Member]
Derivatives Fair Value [Line Items]
Gain/(loss) reclassified from accumulated OCI	2	[1]	(2)	[1]	3	[1]	(4)	[1]
Royalties [Member]
Derivatives Fair Value [Line Items]
Gain/(loss) reclassified from accumulated OCI	3	[1]	(7)	[1]	6	[1]	(14)	[1]
Other Income, Net [Member] | Not Designated As Hedging Instruments [Member]
Derivatives Fair Value [Line Items]
(Loss)/gain recognized in income	$ (41)		$ (10)		$ 97		$ 133

[1] The amount of hedge ineffectiveness for the three and six months ended June 30, 2012 was insignificant.