Investments - Unrealized gains (losses) recognized in income (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
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| Schedule of Investments [Abstract] | ||||
| Proceeds from Sale of Debt Securities, Available-for-sale | $ 4,790 | $ 9,177 | $ 23,252 | $ 23,987 |
| Consolidated Entity, excluding Affiliated Entity | ||||
| Gain (Loss) on Securities [Line Items] | ||||
| Debt Securities, Trading, Unrealized Gain (Loss) | (342) | 73 | (468) | 209 |
| Equity Securities, FV-NI, Unrealized Gain (Loss) | $ (22) | $ 11 | $ (30) | $ 46 |
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- Definition Amount of unrealized gain (loss) on 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/exampleRef
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- Definition Amount of unrealized gain (loss) on 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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- Definition Amount of cash inflow from sale 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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- 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/2009/role/commonPracticeRef
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- References No definition available.
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- Details
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