Long-term debt and interest expense, net (Details) - USD ($) $ in Millions	Jun. 30, 2022	Jun. 14, 2022	Dec. 31, 2021
Long-term debt and interest expense, net
Obligations under finance leases and other	$ 6		$ 5
Debt discount and issuance costs	(106)		(39)
Total long-term debt	2,218		2,086
Current portion of long-term debt	(24)		(24)
Non-current portion of long-term debt	2,194		2,062
Revolving Credit Facility
Long-term debt and interest expense, net
Long-term debt	145
Term Loan B
Long-term debt and interest expense, net
Long-term debt	1,500	$ 1,500	1,444
9.75% 2023 Notes
Long-term debt and interest expense, net
Long-term debt			500
7.75% 2027 Notes
Long-term debt and interest expense, net
Long-term debt	500
7.54% 2027 Notes
Long-term debt and interest expense, net
Long-term debt	150		150
Deferred financing
Long-term debt and interest expense, net
Long-term debt	$ 23		$ 26