Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (4)	$ 64	$ (6)	$ 18
Other comprehensive income (loss):
Foreign currency translation adjustments	5	(2)	10	6
Defined benefit plans:
Defined benefit plan adjustment, before tax	1	2	2	2
Defined benefit plan adjustment, tax portion	0	(1)	0	(1)
Defined benefit plan adjustment, net of tax	1	1	2	1
Other comprehensive income (loss)	6	(1)	12	7
Comprehensive income	$ 2	$ 63	$ 6	$ 25