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Asset Retirement Obligations
6 Months Ended
Jun. 30, 2022
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligations Asset Retirement Obligations
Activity related to the Company’s asset retirement obligations is as follows:
(In millions)Six Months Ended 
June 30, 2022
Balance at beginning of period$263 
Liabilities incurred
Liabilities settled (2)
Liabilities divested(3)
Accretion expense
Balance at end of period269 
Less: current asset retirement obligations(4)
Noncurrent asset retirement obligations$265