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COMMITMENTS AND CONTINGENCIES (Details)
$ in Millions
9 Months Ended
Apr. 20, 2021
USD ($)
Sep. 30, 2021
USD ($)
site
Dec. 31, 2020
USD ($)
Mar. 31, 2020
lawsuit
Loss Contingencies [Line Items]        
Litigation reserve   $ 73 $ 40  
Litigation related receivables   $ 7    
Agreement to settle the case $ 16      
Number of lawsuits | lawsuit       2
Superfund Sites | Environmental Clean-up        
Loss Contingencies [Line Items]        
Number of sites | site   6    
Environmental reserves   $ 18 $ 20