CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 60	$ 99	$ 322	$ (1)
Other comprehensive income (loss) before tax:
Change in cumulative translation adjustments	(49)	56	(76)	(19)
Net change in unrealized components of defined benefit plans	0	2	2	6
Other comprehensive (loss) income, before tax	(49)	58	(74)	(13)
Tax effect allocated to other comprehensive loss	0	(1)	(1)	(2)
Other comprehensive (loss) income, net of tax	(49)	57	(74)	(15)
Comprehensive income (loss)	11	156	248	(16)
Less: Comprehensive income attributable to non-controlling interest	0	1	1	1
Comprehensive income (loss) attributable to controlling interest	$ 11	$ 155	$ 247	$ (17)