INCOME TAXES - Income Tax Expense (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Current income taxes: Federal taxes	$ 7	$ 21
Current income taxes: State taxes	2	2
Total current income taxes	9	23
Deferred income taxes: Federal taxes	5	(1)
Total deferred income taxes	5	(1)
Income taxes	$ 14	$ 22
Statutory tax rate	21.00%	21.00%
Effective tax rate	20.90%	18.90%

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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