Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net (loss) income	$ (70)	$ (47)	$ (146)	$ 59
Other comprehensive (loss) income, net of tax:
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	10	7	25	8
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	0	0	0	(1)
Other comprehensive income	10	7	25	7
Comprehensive (loss) income	$ (60)	$ (40)	$ (121)	$ 66