INCOME TAXES - Schedule of Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance, January 1	$ 427	$ 394	$ 278
Additions for tax positions of the current year	17	17	20
Additions for tax positions of prior years	179	21	138
Reductions for tax positions of prior years	(34)	(2)	(26)
Settlements during the period	(7)	0	(4)
Lapses of applicable statute of limitation	(2)	(3)	(12)
Balance, December 31	$ 580	$ 427	$ 394