Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	12 Months Ended	42 Months Ended	57 Months Ended	180 Months Ended
	Dec. 31, 2021	Jul. 01, 2022	Dec. 31, 2022	Dec. 31, 2032
Commitments and Contingencies Disclosure [Abstract]
Current annual salaries of officers and key employees	$ 14
South Texas Divestiture
Loss Contingencies [Line Items]
Deficiency fee liability	191
Guarantor obligations, reimbursement	84
Credit support from third parties	$ 100
South Texas Divestiture | Maximum
Loss Contingencies [Line Items]
Loss contingency, obligation, percentage	10000.00%
Deficiency fee liability	$ 211
South Texas Divestiture | Forecast
Loss Contingencies [Line Items]
Loss contingency, obligation, percentage		10000.00%
Loss contingency, buyer recovery, percentage		18.00%
South Texas Divestiture | Forecast | Maximum
Loss Contingencies [Line Items]
Loss contingency, obligation, percentage		10000.00%
Loss contingency, buyer recovery, percentage		18.00%
Raton transportation commitments
Loss Contingencies [Line Items]
Credit support from third parties	50
Deficiency fees paid and reimbursed	6
Raton transportation commitments | Maximum
Loss Contingencies [Line Items]
Deficiency fee liability	72
Raton transportation commitments | Forecast | Maximum
Loss Contingencies [Line Items]
Loss contingency, obligation, percentage				10000.00%
West Eagle Ford Shale
Loss Contingencies [Line Items]
Credit support from third parties	17
West Eagle Ford Shale | Maximum
Loss Contingencies [Line Items]
Deficiency fee liability	$ 15
West Eagle Ford Shale | Forecast | Maximum
Loss Contingencies [Line Items]
Loss contingency, obligation, percentage			10000.00%