SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Future Adoption of Accounting Standards (Details) - USD ($) $ in Millions	Jan. 01, 2022	Dec. 31, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt, net		$ (2,631)	$ (2,680)
Additional paid-in capital		(4,072)	(3,760)
Deferred taxes		(302)	(237)
Stockholders' equity		$ 2,976	$ 2,651
Cumulative Effect, Period of Adoption, Adjustment | Subsequent Event
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt, net	$ (107)
Additional paid-in capital	111
Deferred taxes	27
Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment | Subsequent Event
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stockholders' equity	$ (31)