Commitments and Contingencies (Details) $ in Millions	Mar. 31, 2022 USD ($) tribe	Dec. 31, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Loss Contingencies [Line Items]
Guarantees recorded	$ 4
Number of affiliated tribes | tribe	3
Contingent royalty liability	$ 139
Contingent capital and expense receivable, noncurrent	24
Asset retirement obligation	324	$ 316	$ 262	$ 254
Gulf of Mexico
Loss Contingencies [Line Items]
Asset retirement obligation		$ 37
Accounts payable
Loss Contingencies [Line Items]
Contingent royalty liability	127
Other current liabilities
Loss Contingencies [Line Items]
Contingent royalty liability	12
Performance of Equatorial Guinea LNG Operations, S.A.
Loss Contingencies [Line Items]
Guarantor obligations, maximum exposure	91
Performance of Alba Plant LLC.
Loss Contingencies [Line Items]
Guarantor obligations, maximum exposure	$ 25