Income Taxes - Components of Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Current tax expense:
Federal	$ 1,000	$ 1,753	$ 1,899
Foreign (including Puerto Rico)	199	93	95
State and local	128	448	420
Total current tax expense	1,327	2,294	2,414
Deferred tax expense (benefit):
Federal	(42)	(232)	(413)
Foreign (including Puerto Rico)	(180)	(134)	(167)
State and local	(56)	5	(110)
Total deferred tax expense (benefit)	(278)	(361)	(690)
Total income tax expense	$ 1,049	$ 1,933	$ 1,724