Annual report pursuant to Section 13 and 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
12 Months Ended
Dec. 31, 2018
USD ($)
item
Dec. 31, 2017
USD ($)
Reconciliation of beginning and ending balances for assets measured at fair value on a recurring basis    
Number of instruments categorized as Level 3 | item 0  
Fair Value Measurements Using Significant Unobservable Inputs (Level 3)    
Transfers out of Level 3 $ 0  
Recurring basis    
Total (losses) gains:    
Total net gains included in earnings   $ 0
Recurring basis | Cross Currency Interest Rate Contracts    
Fair Value Measurements Using Significant Unobservable Inputs (Level 3)    
Balance at beginning of period $ 0 29
Total (losses) gains:    
Included in other comprehensive (loss) income   (22)
Purchases, sales, issuances and settlements   (7)
Balance at end of period   $ 0