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COMMITMENTS AND CONTINGENT LIABILITIES (Urethane Matters) (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Jul. 31, 2013
Mar. 31, 2016
Mar. 31, 2013
Dec. 31, 2016
Urethane Matters Class Action Lawsuit        
Loss Contingencies [Line Items]        
Damages awarded $ 1,060      
Gain (loss) related to litigation settlement   $ 835    
Urethane Matters Class Action Lawsuit | Pending Litigation [Member]        
Loss Contingencies [Line Items]        
Damages awarded     $ 400  
Urethane Matters Opt-out Cases        
Loss Contingencies [Line Items]        
Litigation settlement       $ 400
Gain (loss) related to litigation settlement   $ 400    
Urethane Antitrust Litigation [Domain]        
Loss Contingencies [Line Items]        
Litigation settlement       $ 835