Risk Management Activities - Schedule of Derivative Instruments (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($) $ / bbl	Jun. 30, 2022 USD ($)	Sep. 30, 2022 MMBTU $ / bbl MBbls
Crude Oil | Price Swaps
Derivatives, Fair Value [Line Items]
Cash paid for settlement of contracts | $	$ 63	$ 593
Crude Oil | Derivative Contracts - January through March (closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			140
Weighted Average Price	65.58		65.58
Crude Oil | Offsetting Derivative Contracts - January through March (closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			0
Weighted Average Price	0		0
Crude Oil | Derivative Contracts - April through June (closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			140
Weighted Average Price	65.62		65.62
Crude Oil | Offsetting Derivative Contracts - April through June (closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			0
Weighted Average Price	0		0
Crude Oil | Derivative Contracts - July through September (closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			140
Weighted Average Price	65.59		65.59
Crude Oil | OffSetting Derivative Contracts - July through September (closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			0
Weighted Average Price	0		0
Crude Oil | Derivative Contracts - October through December (Closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			53
Weighted Average Price	66.11		66.11
Crude Oil | OffSetting Derivative Contracts - October through December (Closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			0
Weighted Average Price	0		0
Crude Oil | Derivative Contracts - October through December | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			87
Weighted Average Price	65.41		65.41
Crude Oil | OffSetting Derivative Contracts - October through December | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			87
Weighted Average Price	88.85		88.85
Crude Oil | Derivative Contracts - January through March (closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			55
Weighted Average Price	67.96		67.96
Crude Oil | Offsetting Derivative Contracts - January through March (closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			0
Weighted Average Price	0		0
Crude Oil | Derivative Contracts - January through March | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			95
Weighted Average Price	67.90		67.90
Crude Oil | OffSetting Derivative Contracts - January through March | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			6
Weighted Average Price	102.26		102.26
Crude Oil | Derivative Contracts - April through May (Closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			29
Weighted Average Price	68.28		68.28
Crude Oil | Offsetting Derivative Contracts - April through May (Closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			0
Weighted Average Price	0		0
Crude Oil | Derivative Contracts - April through May | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			91
Weighted Average Price	67.63		67.63
Crude Oil | Offsetting Derivative Contracts - April through May | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			2
Weighted Average Price	98.15		98.15
Crude Oil | Derivative Contracts - June (Closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			118
Weighted Average Price	67.77		67.77
Crude Oil | OffSetting Derivative Contracts - June (Closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			0
Weighted Average Price	0		0
Crude Oil | Derivative Contracts - June | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			2
Weighted Average Price	69.10		69.10
Crude Oil | OffSetting Derivative Contracts - June | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			2
Weighted Average Price	98.15		98.15
Crude Oil | Derivative Contracts - July through September (Closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			100
Weighted Average Price	70.15		70.15
Crude Oil | Offsetting Derivative Contracts - July through September (Closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			0
Weighted Average Price	0		0
Crude Oil | Derivative Contracts - October through December Year Two (Closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			69
Weighted Average Price	69.41		69.41
Crude Oil | Offsetting Derivative Contracts - October through December - Year Two (closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			0
Weighted Average Price	0		0
Crude Oil | Derivative Contracts - January through October (closed) | Roll Differential Swap
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			125
Weighted Average Price	0.15		0.15
Crude Oil | Derivative Contracts - November through December | Roll Differential Swap
Derivatives, Fair Value [Line Items]
Volume (MBbld) | MBbls			125
Weighted Average Price	0.15		0.15
Natural Gas | Price Swaps
Derivatives, Fair Value [Line Items]
Cash paid for settlement of contracts | $		$ 735
Natural Gas | Derivative Contracts - October through December (Closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Weighted Average Price	3.05		3.05
Volume (MMBtud in thousands) | MMBTU			425
Natural Gas | Derivative Contracts - October through December | Basis Swaps
Derivatives, Fair Value [Line Items]
Weighted Average Price	0.01		0.01
Volume (MMBtud in thousands) | MMBTU			210
Natural Gas | Derivative Contracts - November through December | Price Swaps
Derivatives, Fair Value [Line Items]
Weighted Average Price	4.32		4.32
Volume (MMBtud in thousands) | MMBTU			300
Natural Gas | Derivative Contracts - January through September (closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Weighted Average Price	3.57		3.57
Volume (MMBtud in thousands) | MMBTU			725
Natural Gas | Derivative Contracts - October (closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Weighted Average Price	4.32		4.32
Volume (MMBtud in thousands) | MMBTU			300
Natural Gas | Derivative Contracts - January through December (Closed) | Price Swaps
Derivatives, Fair Value [Line Items]
Weighted Average Price	3.05		3.05
Volume (MMBtud in thousands) | MMBTU			425
Natural Gas | Derivative Contracts - January through December Year One | Price Swaps
Derivatives, Fair Value [Line Items]
Weighted Average Price	3.36		3.36
Volume (MMBtud in thousands) | MMBTU			300
Natural Gas | Derivative Contracts - January through December Year One | Basis Swaps
Derivatives, Fair Value [Line Items]
Weighted Average Price	0.01		0.01
Volume (MMBtud in thousands) | MMBTU			135
Natural Gas | Derivative Contracts - January through December Year Two | Price Swaps
Derivatives, Fair Value [Line Items]
Weighted Average Price	3.07		3.07
Volume (MMBtud in thousands) | MMBTU			725
Natural Gas | Derivative Contracts - January through December Year Two | Basis Swaps
Derivatives, Fair Value [Line Items]
Weighted Average Price	0.00		0.00
Volume (MMBtud in thousands) | MMBTU			10
Natural Gas | Derivative Contracts - January through December Year Three | Price Swaps
Derivatives, Fair Value [Line Items]
Weighted Average Price	3.07		3.07
Volume (MMBtud in thousands) | MMBTU			725
Natural Gas | Derivative Contracts - January through December Year Three | Basis Swaps
Derivatives, Fair Value [Line Items]
Weighted Average Price	0.00		0.00
Volume (MMBtud in thousands) | MMBTU			10
Natural Gas | Derivative Contracts - January through September (closed) | Basis Swaps
Derivatives, Fair Value [Line Items]
Weighted Average Price	0.01		0.01
Volume (MMBtud in thousands) | MMBTU			210