Loans and Allowance for Credit Losses - Net Loans (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	$ 32,150	$ 32,532
Allowance for credit losses	(97)	(87)
Loans, net of allowance	32,053	32,445
Geographic Distribution, Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	21,248	22,114
Non-U.S.
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	10,902	10,418
Fund Finance | Securities Finance Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	1,510	1,780
Fund Finance | Municipal Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	321	455
Fund Finance | Other Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	42	23
Fund Finance | Geographic Distribution, Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	12,154	12,296
Fund Finance | Geographic Distribution, Domestic | 40 Act Funds
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	6,610	6,400
Fund Finance | Geographic Distribution, Domestic | Private Equity Capital Call Finance Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	7,570	9,150
Fund Finance | Geographic Distribution, Domestic | Business Development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	1,110	1,390
Fund Finance | Non-U.S.
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	3,949	4,965
Leveraged loans | Geographic Distribution, Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	2,431	3,106
Leveraged loans | Non-U.S.
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	1,118	1,328
Overdrafts | Geographic Distribution, Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	1,707	1,796
Overdrafts | Non-U.S.
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	1,094	1,312
Collateralized loan obligations | Geographic Distribution, Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	100	100
Collateralized loan obligations | Non-U.S.
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	4,741	2,813
Other | Geographic Distribution, Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	1,871	2,262
Other | Non-U.S.
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	0	0
Commercial real estate | Geographic Distribution, Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	$ 2,985	$ 2,554