Trading Assets and Liabilities - Summary of Trading Assets and Liabilities (Detail) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Trading activity, gains and losses, net [Line Items] | ||
| Trading assets (at fair value) | $ 789,083 | $ 656,796 |
| Trading liabilities | 323,783 | 262,552 |
| Trading cash instruments | ||
| Trading activity, gains and losses, net [Line Items] | ||
| Trading assets (at fair value) | 723,911 | 603,843 |
| Trading liabilities | 223,810 | 178,147 |
| Derivatives | ||
| Trading activity, gains and losses, net [Line Items] | ||
| Trading assets (at fair value) | 65,172 | 52,953 |
| Trading liabilities | $ 99,973 | $ 84,405 |
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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. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The carrying amount of liabilities as of the balance sheet date that pertain to principal and customer trading transactions, or which may be incurred with the objective of generating a profit from short-term fluctuations in price as part of an entity's market-making, hedging and proprietary trading. Examples include short positions in securities, derivatives and commodities, obligations under repurchase agreements, and securities borrowed arrangements. No definition available.
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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