OTHER ASSETS - Schedule of Other Assets (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Equity method investments	$ 135	$ 517
Other investments	505	567
Note receivable	163	0
Post-retirement plan assets	48	50
Other	164	274
Total other assets	$ 1,015	$ 1,408