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RELATED PARTIES (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Related Party Transaction [Line Items] |  |  |
Additional contributions | $ 10 |  |
Equity Method Investee [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Revenue from related parties | 36 | $ 37 | $ 0
Accounts receivable, related parties | 3 | 3 |
Accounts payable, related parties | 1 | 1 |
Equity Method Investee [Member] | Prepaid Expenses and Other Current Assets [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Other accounts receivable, related parties | 3 | 7 |
Equity Method Investee [Member] | Selling, General and Administrative Expenses [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Income recognized from related party | $ 15 | $ 16 | $ 19

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