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COMMITMENTS AND CONTINGENCIES (Tables)
9 Months Ended
Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Environmental Obligations
The following is a summary of our environmental obligations:
(In Millions)
September 30,
2021
December 31,
2020
Environmental obligations$161 $135 
Less: current portion16 18 
Long-term environmental obligations$145 $117