Consolidated Statement of Comprehensive (Loss) Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement Of Income And Comprehensive Income [Abstract]
NET INCOME (LOSS)	$ 4	$ 4	$ (21)	$ 11
Other comprehensive (loss) income, net of tax:
Currency translation adjustments	(20)		(7)	14
Pension and other postretirement benefit plan obligation activity, net of tax		(3)		(6)
Other comprehensive (loss) income, net of tax	(20)	(3)	(7)	8
COMPREHENSIVE (LOSS) INCOME, NET OF TAX	$ (16)	$ 1	$ (28)	$ 19