Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE - FAIR VALUES OF FINANCIAL INSTRUMENTS (Details)

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FAIR VALUE - FAIR VALUES OF FINANCIAL INSTRUMENTS (Details) - USD ($)
$ in Millions
Jun. 30, 2017
Dec. 31, 2016
Carrying Value    
Fair values of financial instruments    
Non-qualified employee benefit plan investments $ 29 $ 27
Investments in equity securities 5 18
Long-term debt (including current portion) (4,116) (4,195)
Carrying Value | Cross currency interest rate contracts    
Fair values of financial instruments    
Derivative contracts - assets 16 29
Carrying Value | Interest rate contracts    
Fair values of financial instruments    
Derivative contracts - liabilities (1) (2)
Estimated Fair Value    
Fair values of financial instruments    
Non-qualified employee benefit plan investments 29 27
Investments in equity securities 5 18
Long-term debt (including current portion) (4,381) (4,368)
Estimated Fair Value | Cross currency interest rate contracts    
Fair values of financial instruments    
Derivative contracts - assets 16 29
Estimated Fair Value | Interest rate contracts    
Fair values of financial instruments    
Derivative contracts - liabilities $ (1) $ (2)