Income Taxes (Components of Income Tax Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Federal, current	$ 1,098	$ 1,021	$ 782
State, current	221	320	227
Total current	1,319	1,341	1,009
Federal, deferred	(1)	(149)	307
State, deferred	(29)	(103)	44
Total deferred	(30)	(252)	351
Total	$ 1,289	$ 1,089	$ 1,360