Provision (Benefit) for Income Taxes Tax Provison (Benefit) Table (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Current :
Federal	$ 11	$ 10	$ 65	$ 10
State	7	7	17	11
Total	18	17	82	21
Deferred:
Federal	178	169	395	555
State	31	(10)	72	59
Total	209	159	467	614
Less: Provision (benefit) for income taxes	$ 227	$ 176	$ 549	$ 635