Offsetting Arrangements - Liabilities With Offsetting Arrangements (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Offsetting Liabilities [Line Items]
Derivatives, gross amounts of recognized liabilities	$ 20,303	$ 25,966
Derivatives, gross amounts offset in statement of condition	(15,021)	(17,951)
Net Amounts of Liabilities Presented in Statement of Condition	5,282	8,015
Derivative, net amount	4,201	7,107
Derivative liability, collateral, cash offset	(4,015)	(2,727)
Derivatives, cash and collateral securities netting, cash and securities provided	(1,081)	(908)
Derivatives, cash and collateral securities netting, net	(5,096)	(3,635)
Resale agreements and securities lending, gross amounts of recognized liabilities	203,469	111,653
Resale agreements and securities lending, gross amounts offset in statement of condition	(187,348)	(104,093)
Resale agreements and securities lending, net amounts of liabilities presented in statement of condition	16,121	7,560
Resale agreements and securities lending, cash and securities provided	(15,790)	(6,433)
Resale agreements and securities lending, net amount	331	1,127
Total derivatives and other financial instruments, gross amounts of recognized liabilities	223,772	137,619
Total derivatives and other financial instruments, gross amounts offset in statement of condition	(202,369)	(122,044)
Total derivatives and other financial instruments, net amounts of liabilities presented in statement of condition	21,403	15,575
Total derivatives and other financial instruments, cash and securities provided	(16,871)	(7,341)
Total derivatives and other financial instruments, net amount	4,532	8,234
Securities sold under repurchase agreements	3,097	1,177
Foreign exchange contracts
Offsetting Liabilities [Line Items]
Derivatives, gross amounts of recognized liabilities	20,106	25,749
Derivatives, gross amounts offset in statement of condition	(11,006)	(15,224)
Net Amounts of Liabilities Presented in Statement of Condition	9,100	10,525
Derivative, net amount	9,100	10,525
Interest rate contracts
Offsetting Liabilities [Line Items]
Derivatives, gross amounts of recognized liabilities	1	1
Derivatives, gross amounts offset in statement of condition	0	0
Net Amounts of Liabilities Presented in Statement of Condition	1	1
Derivative, net amount	1	1
Other derivative contracts
Offsetting Liabilities [Line Items]
Derivatives, gross amounts of recognized liabilities	196	216
Derivatives, gross amounts offset in statement of condition	0	0
Net Amounts of Liabilities Presented in Statement of Condition	196	216
Derivative, net amount	196	216
Accrued expenses and other liabilities
Offsetting Liabilities [Line Items]
Cash collateral received in connection to securities finance activities	$ 13,020	$ 6,380