Trading Assets and Liabilities - Summary (Details) - USD ($) $ in Millions		Dec. 31, 2024	Dec. 31, 2023
Debt and Equity Securities, FV-NI [Line Items]
Trading assets	[1]	$ 21,231	$ 22,115
Trading liabilities	[1]	3,907	3,485
U.S. Treasury
Debt and Equity Securities, FV-NI [Line Items]
Trading assets		3,676	3,564
U.S. Government agency issued or guaranteed
Debt and Equity Securities, FV-NI [Line Items]
Trading assets		1	1
U.S. Government sponsored enterprises
Debt and Equity Securities, FV-NI [Line Items]
Trading assets		1,166	1,207
Foreign bonds
Debt and Equity Securities, FV-NI [Line Items]
Trading assets		783	4,019
Equity securities
Debt and Equity Securities, FV-NI [Line Items]
Trading assets		13,844	11,702
Precious metals
Debt and Equity Securities, FV-NI [Line Items]
Trading assets		163	346
Trading liabilities		70	301
Securities sold, not yet purchased
Debt and Equity Securities, FV-NI [Line Items]
Trading liabilities		1,489	1,688
Derivative assets
Debt and Equity Securities, FV-NI [Line Items]
Trading assets		1,598	1,276
Derivatives liability
Debt and Equity Securities, FV-NI [Line Items]
Trading liabilities		$ 2,348	$ 1,496

[1] The following table summarizes assets and liabilities related to our consolidated variable interest entities ("VIEs") at December 31, 2024 and 2023. Assets and liabilities exclude intercompany balances that eliminate in consolidation. See Note 27, "Variable Interest Entities," for additional information. At December 31,20242023(in millions)AssetsOther assets$11 $23 Total assets$11 $23 LiabilitiesInterest, taxes and other liabilities$4 $17 Total liabilities$4 $17