Unaudited Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Unaudited Condensed Consolidated Statements of Comprehensive Income (Loss)
Net (loss) income	$ (30)	$ 45	$ (37)	$ (39)
Other comprehensive income (loss), net of tax:
Unrealized gain on interest rate swaps	1	4	12	10
Foreign currency translation adjustments	(1)		(1)	(1)
Gain on pension and other postretirement benefit plans		1		2
Other comprehensive income, net of tax		5	11	11
Comprehensive (loss) income, net of tax	$ (30)	$ 50	$ (26)	$ (28)