Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net (loss) income	$ (34)	$ 150	$ (76)	$ 106
Other comprehensive (loss) income, net of tax:
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	9	(25)	15	1
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	0	1	0	1
Other comprehensive income (loss)	9	(26)	15	0
Comprehensive income (loss)	$ (25)	$ 124	$ (61)	$ 106