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FINANCIAL INSTRUMENTS FINANCIAL INSTRUMENTS (Long-Term Debt) (Details) - USD ($)
$ in Millions
Jun. 30, 2015
Dec. 31, 2014
Long-term Debt [Member]    
Debt Instrument [Line Items]    
Long-term Debt $ 481 $ 482
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Long-term Debt [Member]    
Debt Instrument [Line Items]    
Long-term Debt, Fair Value $ 582 $ 601