Accounts Payable and Other Liabilities (Details) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Accounts Payable and Accrued Liabilities [Abstract]
Brokerage payables		$ 169,172	$ 140,291
Other payables and liabilities		93,583	90,994
Total accounts payable and other liabilities	[1]	262,755	231,285
Credit card rewards liability		$ 9,800	$ 7,700

[1] Prior-period amounts have been revised to conform with the current presentation. Refer to Note 25 for further information.