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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 156	$ 701	$ 755	$ 1,910
Currency translation adjustments	(339)	(310)	(650)	(248)
Changes in derivative financial instruments, net of tax	(19)	(99)	7	(110)
Comprehensive income (loss)	(202)	292	112	1,552
Comprehensive income attributable to noncontrolling interest	1	2	1	3
Comprehensive income (loss) attributable to Company	$ (203)	$ 290	$ 111	$ 1,549

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