Additional Balance Sheet Information (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Accounts receivable, net
Trade accounts	$ 1,413	$ 922
Joint interest accounts	93	83
Other accounts	22	34
Accounts receivable, gross	1,528	1,039
Allowance for credit losses	(3)	(2)
Accounts receivable, net	1,525	1,037
Other assets
Deferred compensation plan	41	47
Debt issuance costs	4	5
Operating lease right-of-use assets	295	317
Derivative instruments	16	0
Other accounts	52	20
Other assets	408	389
Accounts payable
Trade accounts	62	94
Royalty and other owners	511	315
Accrued transportation	92	96
Accrued capital costs	167	88
Taxes other than income	78	60
Accrued lease operating costs	31	29
Other accounts	103	65
Accounts payable	1,044	747
Accrued liabilities
Employee benefits	78	124
Taxes other than income	21	13
Operating lease liabilities	73	69
Financing lease liabilities	6	14
Other accounts	28	40
Accrued liabilities	206	260
Other liabilities
Deferred compensation plan	54	56
Postretirement benefits	28	33
Operating lease liabilities	222	248
Financing lease liabilities	14	7
Other accounts	108	63
Other liabilities	$ 426	$ 407
Operating lease, right-of-use asset, statement of financial position [Extensible List]	Other assets	Other assets
Operating lease, liability, current, statement of financial position [Extensible List]	Accrued liabilities	Accrued liabilities
Finance lease, liability, current, statement of financial position [Extensible Enumeration]	Accrued liabilities	Accrued liabilities
Operating lease, liability, noncurrent, statement of financial position [Extensible List]	Other liabilities	Other liabilities
Finance lease, liability, noncurrent, statement of financial position [Extensible Enumeration]	Other liabilities	Other liabilities