RELATED PARTIES (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Related Party Transaction [Line Items]
Additional contributions		$ 10
Equity Method Investee
Related Party Transaction [Line Items]
Revenue from related parties	$ 35	36	$ 37
Accounts receivable, related parties	4	3
Accounts payable, related parties	2	1
Dividends paid	48	74	35
Equity Method Investee \| Prepaid Expenses and Other Current Assets
Related Party Transaction [Line Items]
Other accounts receivable, related parties	1	3
Equity Method Investee \| Selling, General and Administrative Expenses
Related Party Transaction [Line Items]
Income recognized from related party	15	$ 15	$ 16
Corporate Joint Venture
Related Party Transaction [Line Items]
Revenue from related parties	8
Accounts receivable, related parties	$ 4

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