Income Taxes - Schedule Of Deferred Tax Assets And Deferred Tax Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Valuation Allowance [Line Items]
Lease deferred tax assets	$ 201	$ 190
Net operating loss carryforward (a)	164	225
Asset retirement obligations	100	104
Net deferred hedge losses	30	33
Incentive plans	24	25
Credit carryforwards (b)	4	0
Convertible debt	0	2
Other	52	54
Deferred tax assets	575	633
Oil and gas properties, principally due to differences in basis, depletion and the deduction of intangible drilling costs for tax purposes	(4,627)	(4,186)
Other property and equipment, principally due to the deduction of bonus depreciation for tax purposes	(246)	(233)
Lease deferred tax liabilities	(87)	(72)
Convertible debt	(6)	0
Other	(11)	(9)
Deferred tax liabilities	(4,977)	(4,500)
Net deferred tax liability	(4,402)	$ (3,867)
U.S. federal minimum tax credit carryovers	4
Domestic Tax Authority
Valuation Allowance [Line Items]
Net operating loss carryforward (a)	779
COLORADO
Valuation Allowance [Line Items]
Net operating loss carryforward (a)	$ 177