Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current income tax expense:
U.S. federal	$ 2,445	$ 1,656	$ 1,122
U.S. state and local	339	351	339
Non-U.S.	476	328	639
Total current income tax expense	3,260	2,335	2,100
Deferred income tax (benefit) expense:
U.S. federal	(763)	231	(931)
U.S. state and local	(117)	22	(119)
Non-U.S.	(309)	41	111
Total deferred income tax (benefit) expense	(1,189)	294	(939)
Income tax provision (benefit)	$ 2,071	$ 2,629	$ 1,161