Income Taxes - Components of Income Tax Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Federal	$ (5)	$ (463)	$ (9)
State	(3)	19	0
Total current tax expense (benefit)	(8)	(444)	(9)
Federal	8	392	(12)
State	(5)	(46)	3
Total deferred tax expense (benefit)	3	346	(9)
Total income tax expense (benefit)	$ (5)	$ (98)	$ (18)