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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 286	$ 620	$ 599	$ 1,209
Currency translation adjustments	107	114	(311)	63
Changes in derivative financial instruments, net of tax	92	(25)	26	(11)
Comprehensive income	485	709	314	1,261
Comprehensive income (loss) attributable to noncontrolling interest	(3)	1		1
Comprehensive income attributable to Company	$ 488	$ 708	$ 314	$ 1,260

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