RESTRICTED CASH - Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	$ 1,205	$ 1,879
Restricted cash included in other assets	$ 0	$ 120
Restricted Cash and Cash Equivalents, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Total cash, cash equivalents and restricted cash	$ 1,205	$ 1,999	$ 1,016	$ 495