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Financial Instruments Subject to Off-Balance Sheet Credit Risk - Narrative (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
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Securities Financing Transaction, Fair Value |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Fair value of borrowed securities from other broker-dealers to fulfill short sales by clients | $ 2,300 | $ 674

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- Definition Fair value of securities borrowed. + References No definition available. + Details
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Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 825 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478898/942-825-50-1 + Details
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |