Loans, Lending Commitments and Related Allowance for Credit Losses - Loans by Interest Rate Type (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fixed Rate	$ 47,712	$ 42,141
Floating or Adjustable Rate	159,532	146,647
Corporate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fixed Rate	0	0
Floating or Adjustable Rate	13,106	13,674
Secured lending facilities
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fixed Rate	0	0
Floating or Adjustable Rate	36,910	35,350
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fixed Rate	342	343
Floating or Adjustable Rate	10,252	8,661
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fixed Rate	22,774	18,966
Floating or Adjustable Rate	27,680	25,292
Securities-based lending and Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fixed Rate	24,596	22,832
Floating or Adjustable Rate	$ 71,584	$ 63,670