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Income Taxes - Schedule of Components of Income Tax Expense/(Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal	$ 80	$ 106	$ 43
State	14	14	10
Deferred:
Federal	(15)	5	82
State	(3)	9	22
Total	$ 76	$ 134	$ 157

X

- Definition

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

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