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 6 Months Ended
Jun. 30, 2018
USD ($)
Jun. 30, 2017
USD ($)
Jun. 30, 2018
USD ($)
instrument
Jun. 30, 2017
USD ($)
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  
Total (losses) gains:        
Impairment of long-lived assets $ 0 $ 0 $ 0 $ 0
Cross Currency Interest Rate Contracts        
Fair Value Measurements Using Significant Unobservable Inputs (Level 3)        
Balance at beginning of period   29   29
Total (losses) gains:        
Included in earnings   0   0
Included in other comprehensive (loss) income   (13)   (13)
Balance at end of period   $ 16   $ 16