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ASSET RETIREMENT OBLIGATION (Tables)
 9 Months Ended
Sep. 30, 2019
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligation
The following table describes changes to the Company’s asset retirement obligation (ARO) liability for the nine-month period ended September 30, 2019:
 
 
(In millions)
Asset retirement obligation at December 31, 2018
 
$
1,932

Liabilities incurred
 
11

Liabilities settled
 
(49
)
Liabilities divested
 
(55
)
Accretion expense
 
80

Asset retirement obligation at September 30, 2019
 
1,919

Less current portion
 
(66
)
Asset retirement obligation, long-term
 
$
1,853