DEBT - Schedule of Interest Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Amortization of Debt Issuance Costs and Discounts	$ 7	$ 3	$ 22
Interest Expense, Debt, Excluding Amortization	22	5	12
Interest Expense, Debt	$ 29	$ 8	$ 34