Capital (Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||
| Beginning Balance | $ 11,384 | $ 9,329 | $ 10,487 | $ 9,451 |
| Other comprehensive income (loss) before reclassifications, Net unrealized losses | 84 | (93) | 114 | (23) |
| Total other comprehensive income (loss) | 84 | (93) | 114 | (23) |
| Ending Balance | 11,491 | 10,225 | 11,491 | 10,225 |
| Accumulated Other Comprehensive Income [Member] | ||||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||
| Beginning Balance | 211 | 41 | 181 | (29) |
| Other comprehensive income (loss) before reclassifications, Net unrealized losses | 84 | (93) | 114 | (23) |
| Ending Balance | $ 295 | $ (52) | $ 295 | $ (52) |
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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/disclosureRef
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- Definition Amount before tax of other comprehensive income (loss) attributable to parent entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before tax and adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Details
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