Investments - Narrative (Details) - USD ($) $ in Millions |
Jun. 30, 2025 |
Dec. 31, 2024 |
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| Debt Securities, Available-for-Sale [Line Items] | ||
| Mortgage loans, net | $ 807 | $ 784 |
| Short-term investments | 9,640 | 4,537 |
| Accrued investment income | 628 | 615 |
| Residential | ||
| Debt Securities, Available-for-Sale [Line Items] | ||
| Mortgage loans, net | 112 | 61 |
| Fixed income securities | ||
| Debt Securities, Available-for-Sale [Line Items] | ||
| Accrued investment income | $ 568 | $ 574 |
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- Definition Interest, dividends, rents, ancillary and other revenues earned but not yet received by the entity on its investments. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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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 of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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