Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE - INSTRUMENTS MEASURED AT FAIR VALUE ON A RECURRING BASIS USING SIGNIFICANT UNOBSERVABLE INPUTS (LEVEL 3) AND INSTRUMENTS MEASURED AT FAIR VALUE ON A NON-RECURRING BASIS (Details)

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FAIR VALUE - INSTRUMENTS MEASURED AT FAIR VALUE ON A RECURRING BASIS USING SIGNIFICANT UNOBSERVABLE INPUTS (LEVEL 3) AND INSTRUMENTS MEASURED AT FAIR VALUE ON A NON-RECURRING BASIS (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Total (losses) gains:        
Impairment of long-lived assets $ 0 $ 0 $ 0 $ 0
Other comprehensive income (loss).        
Total (losses) gains:        
Changes in unrealized losses (9) (5) (22) (7)
Cross currency interest rate contracts        
Fair Value Measurements Using Significant Unobservable Inputs (Level 3)        
Balance at beginning of period 16 26 29 28
Total (losses) gains:        
Included in other comprehensive income (loss) (9) (5) (22) (7)
Purchases, sales, issuances and settlements $ (7)   $ (7)  
Balance at end of period   $ 21   $ 21