INCOME TAXES - Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal	$ 96	$ 53	$ 41
State	30	12	7
Foreign	1	0	0
Total Current	127	65	48
Deferred:
Federal	(33)	(2)	(3)
State	(9)	(5)	4
Total Deferred	(42)	(7)	1
Total	$ 85	$ 58	$ 49

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