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DIVESTITURES (Divestiture of ANGUS Chemical Company) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Feb. 02, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Accounts, Notes, Loans and Financing Receivable, Net, Noncurrent $ 594 $ 708    
ANGUS Chemical Company [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal $ 0 $ 0 $ 682  
Golden Gate Capital [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Accounts, Notes, Loans and Financing Receivable, Net, Noncurrent       $ 10
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | ANGUS Chemical Company [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Disposal Group, Including Discontinued Operation, Consideration       $ 1,151
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal     682  
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, post closing adjustments     $ 12