Consolidated Statement Of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net income	$ 80	$ 48
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Currency translation adjustments	30	30
Hedging gains and losses	(4)	3
Investment and other gains and losses		2
Defined benefit plans	5	7
Other comprehensive income	31	42
Total comprehensive income	111	90
Less: Comprehensive income attributable to noncontrolling interests	(7)	(4)
Less: Comprehensive loss attributable to redeemable noncontrolling interest	1
Comprehensive income attributable to the parent company	$ 105	$ 86