Taxes - Components of Provision (benefit) for Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current
Federal	$ 1,876	$ 2,826	$ 518
Foreign	248	159	221
State and Local	414	1,081	974
Total	2,538	4,066	1,713
Deferred
Federal	3,354	1,432	1,150
Foreign	(97)	1	(13)
State and Local	1,007	120	95
Total	4,264	1,553	1,232
Total income tax provision	$ 6,802	$ 5,619	$ 2,945