Provision (Benefit) for Income Taxes Tax Provison (Benefit) Table (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Current :
Federal	$ 19	$ (1)	$ 54	$ 0
State	4	4	10	4
Total	23	3	64	4
Deferred:
Federal	90	149	217	386
State	16	23	41	69
Total	106	172	258	455
Less: Provision (benefit) for income taxes	$ 129	$ 175	$ 322	$ 459