Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (104)	$ (231)
Other comprehensive loss, before tax:
Change in cumulative translation adjustment	(16)	(22)
Pension liability	0	1
Other comprehensive loss, before tax	(16)	(21)
Expense for taxes	0	0
Other comprehensive loss, net of tax	(16)	(21)
Comprehensive loss	(120)	(252)
Less: Comprehensive income attributable to non-controlling interest	0	2
Comprehensive loss attributable to controlling interest	$ (120)	$ (254)