v3.3.1.900
DEBT (Details)
$ in Millions
Aug. 10, 2015
USD ($)
item
Sep. 30, 2015
USD ($)
Dec. 31, 2014
USD ($)
Debt Instrument [Line Items]      
Debt instrument unused and available borrowing capacity amount   $ 4,336  
Long-term debt, including current portion, Carrying Value   3,102 $ 3,263
Liquidity facility      
Debt Instrument [Line Items]      
Credit facility, borrowings outstanding   0  
Commercial paper program      
Debt Instrument [Line Items]      
Commercial paper, borrowing outstanding   130  
Level 2      
Debt Instrument [Line Items]      
Long-term debt, including current portion, Fair Value   3,181 3,273
Level 3      
Debt Instrument [Line Items]      
Long-term debt, including current portion, Fair Value   54 $ 195
Facility      
Debt Instrument [Line Items]      
Maximum borrowing capacity $ 1,750    
Number of extensions in term of revolving credit facility the holder can seek | item 2    
Extension period per extension 1 year    
Commitment fee (as a percent) 35.00%    
Increase in the total commitments under the revolving credit facility with the consent of the facility agent $ 250    
Credit facility, borrowings outstanding   $ 300  
Facility | Minimum      
Debt Instrument [Line Items]      
Commitment fee (as a percent) 0.10%    
Facility | Maximum      
Debt Instrument [Line Items]      
Commitment fee (as a percent) 0.40%    
Facility | LIBOR | Minimum      
Debt Instrument [Line Items]      
Debt instrument, interest rate added to variable base rate (as a percent) 0.35%    
Facility | LIBOR | Maximum      
Debt Instrument [Line Items]      
Debt instrument, interest rate added to variable base rate (as a percent) 1.35%