Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income before non-controlling interests	$ 490	$ 495
Other comprehensive income (loss), before tax:
Foreign currency translation adjustments	13	(426)
Gain (loss) related to pension/post-retirement plans	138	236
Other comprehensive income (loss), before tax	151	(190)
Income tax expense on other comprehensive income	28	53
Other comprehensive income (loss), net of tax	123	(243)
Comprehensive income	613	252
Less: comprehensive income attributable to non-controlling interest	9	13
Comprehensive income attributable to the Company	$ 604	$ 239