Derivative Financial Instruments (Schedule Of Derivative Instruments, Gains/(Losses) In Statement Of Financial Performance) (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
Derivative instruments, forward points recognized in other income/expense [Abstract]
Derivative instruments not designated as hedging instruments, gain/(loss), net	$ (14)	$ (3)	$ (10)	$ 11
Foreign Exchange Contracts [Member]
Effective portion recognized in other comprehensive loss, net of taxes:
Effective portion recognized in other comprehensive loss, net of taxes	(33)	23	(1)	59
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]
Effective portion reclassified out of Accumulated other comprehensive loss into earnings, net of taxes	3	9	10	14
Derivative instruments, forward points recognized in other income/expense [Abstract]
Forward points recognized in other income/(expense), net	16		12	6
Commodity Contracts [Member]
Effective portion recognized in other comprehensive loss, net of taxes:
Effective portion recognized in other comprehensive loss, net of taxes	3	(5)	(11)	(14)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]
Effective portion reclassified out of Accumulated other comprehensive loss into earnings, net of taxes	$ (11)	$ (7)	$ (18)	$ (13)