Income Taxes - Components of Income Tax Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Current income tax expense:
U.S. federal	$ 1,735	$ 2,368	$ 2,455
U.S. state and local	497	494	351
Non-U.S.	1,272	894	662
Total current income tax expense	3,504	3,756	3,468
Deferred income tax (benefit) expense:
U.S. federal	(328)	(797)	(952)
U.S. state and local	(120)	(146)	(139)
Non-U.S.	(95)	(47)	(238)
Total deferred income tax (benefit) expense	(542)	(990)	(1,329)
Income tax expense (benefit)	$ 2,962	$ 2,766	$ 2,139