Provision (Benefit) for Income Taxes Tax Provison (Benefit) Table (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current :
Federal	$ (25)	$ (1)	$ (29)
State	19	3	0
Total	(6)	2	(29)
Deferred:
Federal	424	421	98
State	7	88	10
Total	431	509	108
Less: Provision (benefit) for income taxes	$ 425	$ 511	$ 79