Derivative Financial Instruments (Schedule Of Derivative Instruments, Gains/(Losses)) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Derivative [Line Items]
Effective portion recognized in other comprehensive income/(loss), net of taxes	$ 13	$ (73)	$ 54	$ (139)
Effective portion reclassified out of Accumulated other comprehensive income/(loss) into earnings, net of taxes	(15)	(24)	(58)	(52)
Foreign Exchange Contract [Member]
Derivative [Line Items]
Effective portion recognized in other comprehensive income/(loss), net of taxes	14	(71)	55	(137)
Effective portion reclassified out of Accumulated other comprehensive income/(loss) into earnings, net of taxes	(14)	(21)	(52)	(44)
Forward points recognized in other income (expense), net	4	1	8	8
Undesignated derivatives recognized in Other income/(expense), net	2	(5)	2	(3)
Commodity Contract [Member]
Derivative [Line Items]
Effective portion recognized in other comprehensive income/(loss), net of taxes	(1)	(2)	(1)	(2)
Effective portion reclassified out of Accumulated other comprehensive income/(loss) into earnings, net of taxes	$ (1)	$ (3)	$ (6)	$ (8)