Income Taxes, Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Current tax expense:
U.S. federal	$ 574	$ 464	$ 1,804
U.S. state and local	52	37	157
Foreign	330	278	555
Total current tax expense	956	779	2,516
Deferred tax expense (benefit):
U.S. federal	(364)	(99)	25
U.S. state and local	(11)	(13)	(12)
Foreign	178	25	90
Total deferred tax expense (benefit)	(197)	(87)	103
Total income tax expense:
U.S. federal	210	365	1,829
U.S. state and local	41	24	145
Foreign	508	303	645
Income tax expense	$ 759	$ 692	$ 2,619