Income Taxes - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
State tax effected net operating losses
Other credit carryforwards	$ 4	$ 10
Valuation allowance on operating loss carryforwards	8
Unrecognized tax benefits	13	$ 7	$ 6	$ 1
Liability for accrued interest	1
Capital loss carryforward
State tax effected net operating losses
Other credit carryforwards	71
Tax Credit Carryforward, Amount, Net Of Valuation Allowance	6
Marginal Well Credits
State tax effected net operating losses
Other credit carryforwards	4
Tax credit carryforwards valuation allowance	4
Research and development tax credits
State tax effected net operating losses
Unrecognized tax benefits	1
Federal
State tax effected net operating losses
Net operating loss carryforwards	442
NOL not subject to expiration	64
Valuation allowance on operating loss carryforwards	37
Operating Loss Carryforwards, Subject To Expiration	378
Operating Loss Carryforwards, Net Of Valuation Allowance	405
State
State tax effected net operating losses
Net operating loss carryforwards	2,600
Valuation allowance on operating loss carryforwards	83
Operating Loss Carryforwards, Net Of Valuation Allowance	198
State | Capital loss carryforward
State tax effected net operating losses
Tax credit carryforwards valuation allowance	15
Cimarex | Research and development tax credits
State tax effected net operating losses
Unrecognized tax benefits	$ 5