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COMMITMENTS AND CONTINGENT LIABILITIES - Environmental Matters Additional Information (Details) - USD ($)
$ in Millions
Mar. 31, 2019
Dec. 31, 2018
Other Environmental Matters    
Site Contingency [Line Items]    
Accrued obligations for environmental matters $ 1,197 $ 1,201
Other Environmental Matters | Chemours | DuPont    
Site Contingency [Line Items]    
Accrued obligations for environmental matters 185  
Potential exposure above the current accrual 355  
Other Environmental Matters | Superfund sites    
Site Contingency [Line Items]    
Accrued obligations for environmental matters 213 $ 210
Other Environmental Matters | Superfund sites | Chemours | DuPont    
Site Contingency [Line Items]    
Accrued obligations for environmental matters 35  
Indemnification agreement | Chemours | DuPont    
Site Contingency [Line Items]    
Indemnification asset $ 185