Hedging Activities (Effect Of Derivative Financial Instruments On Consolidated Financial Statements And Undesignated Derivatives) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Cash Flow Hedges [Member]
Derivatives Fair Value [Line Items]
Gain/(loss) recognized in other comprehensive income (OCI)	$ 100	[1]	$ (61)	[1]	$ (65)	[1]
Gain/(loss) reclassified from accumulated OCI into income (effective)	28	[2]	(54)	[2]	(24)	[2]
Net Investment Hedging [Member]
Derivatives Fair Value [Line Items]
Gain/(loss) recognized in other comprehensive income (OCI)					(1)	[1]
Derivatives Not Designated As Hedging Instruments [Member]
Derivatives Fair Value [Line Items]
Gain/(loss) recognized in income	175		127		(291)
Foreign Denominated Debt [Member]
Derivatives Fair Value [Line Items]
Gain/(loss) recognized in other comprehensive income (OCI)					2	[1]
Foreign Exchange Contracts [Member]
Derivatives Fair Value [Line Items]
Gain/(loss) recognized in other comprehensive income (OCI)	85	[1]	(28)	[1]	(68)	[1]
Interest Rate Hedge [Member]
Derivatives Fair Value [Line Items]
Gain/(loss) recognized in other comprehensive income (OCI)	15	[1]	(33)	[1]	3	[1]
Other Contracts [Member]
Derivatives Fair Value [Line Items]
Gain/(loss) recognized in other comprehensive income (OCI)					(3)	[1]
Sales [Member] | Cash Flow Hedges [Member]
Derivatives Fair Value [Line Items]
Gain/(loss) reclassified from accumulated OCI into income (effective)	1	[2]			(1)	[2]
Cost Of Sales [Member] | Cash Flow Hedges [Member]
Derivatives Fair Value [Line Items]
Gain/(loss) reclassified from accumulated OCI into income (effective)	16	[2]	(12)	[2]	(9)	[2]
Royalties [Member] | Cash Flow Hedges [Member]
Derivatives Fair Value [Line Items]
Gain/(loss) reclassified from accumulated OCI into income (effective)	11	[2]	(42)	[2]	(14)	[2]
Other Income/(Expense), Net [Member] | Derivatives Not Designated As Hedging Instruments [Member]
Derivatives Fair Value [Line Items]
Gain/(loss) recognized in income	$ 175		$ 127		$ (291)

[1] Certain amounts for prior periods were reclassified to conform to the 2012 presentation

[2] The amount of hedge ineffectiveness at December 31, 2012, 2011, and 2010 was insignificant