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RELATED PARTIES (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Equity Method Investee          
Related Party Transaction [Line Items]          
Revenues $ 8 $ 9 $ 26 $ 27  
Receivables 3   3   $ 3
Accounts payable, related parties 1   1   1
Equity Method Investee | Prepaid expenses and other current assets          
Related Party Transaction [Line Items]          
Other accounts receivable, related parties 1   1   $ 3
Equity Method Investee | Selling, general and administrative          
Related Party Transaction [Line Items]          
Income from related party recognized 4 $ 4 12 $ 12  
Joint Venture          
Related Party Transaction [Line Items]          
Revenues 1   6    
Receivables $ 2   $ 2