Offsetting Arrangements - Assets With Offsetting Arrangements (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Offsetting Assets [Line Items]
Derivatives, gross amounts of recognized assets	$ 30,134	$ 15,187
Derivatives, gross amounts offset in statement of condition	(18,950)	(11,079)
Derivatives, net amounts of assets presented in statement of condition	11,184	4,108
Derivatives, net amount	9,651	3,385
Derivatives, cash collateral and securities netting, cash offset	(2,413)	(1,966)
Derivatives, cash collateral and securities netting, cash and securities received	(1,533)	(723)
Derivatives, cash collateral and securities netting, net amount	(3,946)	(2,689)
Resale agreements and securities borrowing, gross amounts of recognized assets	104,880	102,375
Resale agreements and securities borrowing, gross amounts offset in statement of condition	(86,681)	(77,063)
Resale agreements and securities borrowing, net amounts of assets presented in statement of condition	18,199	25,312
Resale agreements and securities borrowing, cash and securities received	(17,491)	(25,096)
Resale agreements and securities borrowing, net amount	708	216
Total derivatives and other financial instruments, gross amounts of recognized assets	135,014	117,562
Total derivatives and other financial instruments, gross amounts offset in statement of condition	(105,631)	(88,142)
Total derivatives and other financial instruments, net amounts of assets presented in statement of condition	29,383	29,420
Total derivatives and other financial instruments, cash and securities received	(19,024)	(25,819)
Total derivatives and other financial instruments, net amount	10,359	3,601
Securities purchased under resale agreements	1,308	3,012
Cash collateral provided for securities borrowing	16,890	22,300
Foreign exchange contracts
Offsetting Assets [Line Items]
Derivatives, gross amounts of recognized assets	30,134	15,185
Derivatives, gross amounts offset in statement of condition	(16,537)	(9,113)
Derivatives, net amounts of assets presented in statement of condition	13,597	6,072
Derivatives, net amount	13,597	6,072
Interest rate contracts
Offsetting Assets [Line Items]
Derivatives, gross amounts of recognized assets	0	2
Derivatives, gross amounts offset in statement of condition	0	0
Derivatives, net amounts of assets presented in statement of condition	0	2
Derivatives, net amount	$ 0	$ 2