INCOME TAXES - COMPONENTS OF TAX EXPENSE (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current tax expense (benefit):
Federal	$ 40	$ (212)	$ 26
State	16	(11)	13
Total current	56	(223)	39
Deferred tax expense:
Federal	80	(246)	175
State	15	(47)	33
Total deferred	95	(293)	208
Income tax (benefit) expense	$ 151	$ (516)	$ 247