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)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2017
USD ($)
Sep. 30, 2018
instrument
Sep. 30, 2017
USD ($)
Reconciliation of beginning and ending balances for assets measured at fair value on a recurring basis      
Number of instruments categorized as Level 3 | instrument   0  
Cross Currency Interest Rate Contracts      
Fair Value Measurements Using Significant Unobservable Inputs (Level 3)      
Balance at beginning of period $ 16   $ 29
Total (losses) gains:      
Included in earnings 0   0
Included in other comprehensive (loss) income (9)   (22)
Purchases, sales, issuances and settlements $ (7)   $ (7)