Revenue - Accounts Receivable (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Allowance for doubtful accounts	$ (3)	$ (3)
Total accounts receivable, net	1,383	1,115
Oil, natural gas and NGL sales
Disaggregation of Revenue [Line Items]
Accounts receivable, gross	1,082	922
Joint interest
Disaggregation of Revenue [Line Items]
Accounts receivable, gross	209	158
Other
Disaggregation of Revenue [Line Items]
Accounts receivable, gross	$ 95	$ 38