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DERIVATIVES DERIVATIVES Part 4 (Details) - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Fair Value, Measurements, Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Asset, Fair Value, Gross Asset $ 144 $ 139
Derivative Liability, Fair Value, Gross Liability (466) (508)
Derivative, Fair Value, Net (322) (369)
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Asset, Fair Value, Gross Asset 0 0
Derivative Liability, Fair Value, Gross Liability 0 0
Derivative, Fair Value, Net 0 0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Asset, Fair Value, Gross Asset 144 137
Derivative Liability, Fair Value, Gross Liability (466) (508)
Derivative, Fair Value, Net (322) (371)
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative Asset, Fair Value, Gross Asset 0 2
Derivative Liability, Fair Value, Gross Liability 0 0
Derivative, Fair Value, Net 0 2
Designated as Hedging Instrument [Member] | Other Noncurrent Assets [Member] | Interest Rate Contract [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value Hedge Assets $ 0 $ 5