Derivatives - Marketing Derivatives (Details)	3 Months Ended				12 Months Ended
	Mar. 31, 2022 $ / bbl	Mar. 31, 2022 $ / MillionCubicFeet	Mar. 31, 2022 MMBbls	Mar. 31, 2022 Bcf	Dec. 31, 2021 $ / bbl	Dec. 31, 2021 $ / MillionCubicFeet	Dec. 31, 2021 MMBbls	Dec. 31, 2021 Bcf
Marketing Derivatives | Not Designated as Hedging Instruments
Outstanding commodity derivatives contracts not designated as hedging instruments
Weighted average sales price (dollars per barrel)	96.63	5.15			74.85	4.61
Oil commodity contracts | Short position
Outstanding commodity derivatives contracts not designated as hedging instruments
Outstanding net volumes on derivatives not designated as hedges (mmbls/bcf) | MMBbls			(23)				(28)
Natural gas commodity contracts | Short position
Outstanding commodity derivatives contracts not designated as hedging instruments
Outstanding net volumes on derivatives not designated as hedges (mmbls/bcf) | Bcf				(111)				(136)