Consolidated Statement Of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net income	$ 101	$ 111
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Currency translation adjustments	27	10
Hedging gains and losses	5	(8)
Defined benefit plans	5	7
Other comprehensive income	37	9
Total comprehensive income	138	120
Less: Comprehensive income attributable to noncontrolling interests	(2)	(2)
Less: Comprehensive income attributable to redeemable noncontrolling interests	(4)	(2)
Comprehensive income attributable to the parent company	$ 132	$ 116