Consolidated Statement of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement Of Income And Comprehensive Income [Abstract]
NET INCOME (LOSS)	$ (5)	$ 19	$ 178	$ (2)
Other comprehensive income (loss), net of tax:
Currency translation adjustments	(2)	(12)	2	(19)
Pension and other postretirement benefit plan obligation activity, net of tax	(1)	3	(2)	3
Other comprehensive income (loss), net of tax	(3)	(9)		(16)
COMPREHENSIVE INCOME (LOSS), NET OF TAX	$ (8)	$ 10	$ 178	$ (18)