CREDIT LOSSES - Shareholder Loans (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Credit Loss [Abstract]
Included in prepaid expenses and other assets	$ 27	$ 22
Included in other assets - long-term	29	15
Total	$ 56	$ 37

Amount, before allowance for credit loss, of financing receivable, classified as current.

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