Investment Securities - Investment Securities (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Investments, Debt and Equity Securities [Abstract] | ||
| Trading securities | $ 76,009 | $ 82,096 |
| Available-for-Sale, at fair value | 2,158 | 3,316 |
| Total fair value of investment securities | $ 78,167 | $ 85,412 |
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- Definition Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of investment in marketable security. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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