LEASES - Balance Sheet Classification (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease assets [Extensible Enumeration]	Other Assets	Other Assets
Operating lease assets	$ 215	$ 272
Operating lease liabilities [Extensible Enumeration]	Other liabilities	Other liabilities
Operating lease liabilities	$ 278	$ 350