v3.7.0.1
DEBT (Details) - USD ($)
$ in Millions
Jun. 30, 2017
Dec. 31, 2016
Debt    
Debt instrument unused and available borrowing capacity amount $ 4,120  
Maximum borrowing capacity 5,015  
Commercial paper program    
Debt    
Commercial paper, outstanding issuances 0  
Liquidity facility    
Debt    
Credit facility, borrowings outstanding 0  
Carrying Value    
Debt    
Long-term debt, including current portion 4,124 $ 4,007
Fair value | Level 2    
Debt    
Long-term debt, including current portion $ 4,268 $ 4,163