Income Taxes - Components of Income Tax Expense/(Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current income tax expense/(benefit)
U.S. federal	$ 7,091	$ 8,973	$ 5,606
Non-U.S.	4,753	4,355	2,992
U.S. state and local	2,762	3,266	2,630
Total current income tax expense/(benefit)	14,606	16,594	11,228
Deferred income tax expense/(benefit)
U.S. federal	1,771	(3,475)	(2,004)
Non-U.S.	72	35	(154)
U.S. state and local	161	(1,094)	(580)
Total deferred income tax expense/(benefit)	2,004	(4,534)	(2,738)
Total income tax expense	16,610	12,060	8,490
Components of income tax expense/(benefit), supplemental information
Tax benefits recorded as a result of tax audit resolutions	$ 314	$ 68	$ 331