Asset Retirement Obligations (Tables)

6 Months Ended

Jun. 30, 2022

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Changes in Asset Retirement Obligations

Asset retirement obligations primarily consist of estimated costs to remove, dismantle and restore land or seabed at the end of oil and gas production operations. Changes in asset retirement obligations were as follows:

	June 30,
(In millions)	2022		2021
Beginning balance as of January 1	$	316	$	254
Incurred liabilities, including acquisitions	8		6
Settled liabilities, including dispositions	(3)		(2)
Accretion expense (included in depreciation, depletion and amortization)	7		6
Revisions of estimates	(5)		32
Ending balance as of June 30, total	$	323	$	296
Ending balance as of June 30, short-term	$	46	$	24