Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net (loss) income	$ (11)	$ 3	$ (10)	$ (269)
Other comprehensive (loss) income
Foreign currency translation adjustments	(3)	5	(3)	(8)
Hedge accounting adjustments, net of tax	1	1	4	(5)
Total other comprehensive (loss) income, net of tax	(2)	6	1	(13)
Comprehensive (loss) income	$ (13)	$ 9	$ (9)	$ (282)