Offsetting Arrangements - Assets With Offsetting Arrangements (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Offsetting Assets [Line Items]
Derivatives, gross amounts of recognized assets	$ 21,014	$ 26,186
Derivatives, gross amounts offset in statement of condition	(14,586)	(18,522)
Derivatives, net amounts of assets presented in statement of condition	6,428	7,664
Derivatives, net amount	5,037	5,947
Derivatives, cash collateral and securities netting, cash offset	(1,746)	(3,298)
Derivatives, cash collateral and securities netting, cash and securities received	(1,391)	(1,717)
Derivatives, cash collateral and securities netting, net amount	(3,137)	(5,015)
Resale agreements and securities borrowing, gross amounts of recognized assets	206,770	125,797
Resale agreements and securities borrowing, gross amounts offset in statement of condition	(179,779)	(104,093)
Resale agreements and securities borrowing, net amounts of assets presented in statement of condition	26,990	21,704
Resale agreements and securities borrowing, cash and securities received	(25,668)	(20,960)
Resale agreements and securities borrowing, net amount	1,322	744
Total derivatives and other financial instruments, gross amounts of recognized assets	227,784	151,983
Total derivatives and other financial instruments, gross amounts offset in statement of condition	(194,365)	(122,615)
Total derivatives and other financial instruments, net amounts of assets presented in statement of condition	33,418	29,368
Total derivatives and other financial instruments, cash and securities received	(27,059)	(22,677)
Total derivatives and other financial instruments, net amount	6,359	6,691
Securities purchased under resale agreements	1,668	5,215
Cash collateral provided for securities borrowing	25,320	16,490
Foreign exchange contracts
Offsetting Assets [Line Items]
Derivatives, gross amounts of recognized assets	21,011	26,186
Derivatives, gross amounts offset in statement of condition	(12,840)	(15,224)
Derivatives, net amounts of assets presented in statement of condition	8,171	10,962
Derivatives, net amount	8,171	10,962
Interest rate contracts
Offsetting Assets [Line Items]
Derivatives, gross amounts of recognized assets	3	0
Derivatives, gross amounts offset in statement of condition	0	0
Derivatives, net amounts of assets presented in statement of condition	3	0
Derivatives, net amount	$ 3	$ 0