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COMMITMENT AND CONTINGENCIES (Tables)
12 Months Ended
Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Environmental Obligations
The following is a summary of our environmental obligations:
(In Millions)
December 31,
2020
December 31,
2019
Environmental obligations$135 $
Less current portion18 — 
Long-term environmental obligations$117 $