RELATED PARTIES (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Related Party Transaction [Line Items]
Additional contributions			$ 10
Equity Method Investee
Related Party Transaction [Line Items]
Revenue from related parties	$ 34	$ 35	36
Accounts receivable, related parties	3	4
Accounts payable, related parties	1	2
Dividends paid	54	48	74
Equity Method Investee \| Prepaid Expenses and Other Current Assets
Related Party Transaction [Line Items]
Other accounts receivable, related parties	3	1
Equity Method Investee \| Selling, General and Administrative Expenses
Related Party Transaction [Line Items]
Income recognized from related party	16	15	$ 15
Corporate Joint Venture
Related Party Transaction [Line Items]
Revenue from related parties	$ 3	8
Accounts receivable, related parties		$ 4

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Amount for accounts payable to related parties.

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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