Reinsurance and Indemnification - Schedule of Reinsurance and Indemnification Recoverables (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
Sep. 30, 2025 |
Dec. 31, 2024 |
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| Reinsurance | ||||
| Reinsurance and indemnification recoverables, net | $ 7,724 | $ 8,501 | ||
| Property and casualty | ||||
| Reinsurance | ||||
| Paid and due from reinsurers and indemnitors | 201 | 267 | ||
| Unpaid losses estimated (including IBNR) | 7,301 | 8,012 | $ 8,993 | $ 8,602 |
| Reinsurance and indemnification recoverables, net | 7,502 | 8,279 | ||
| Accident and health insurance | ||||
| Reinsurance | ||||
| Reinsurance and indemnification recoverables, net | $ 222 | $ 222 |
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- Definition Reinsurance And Indemnification Recoverables, Net No definition available.
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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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- Definition Amount, after valuation allowance, recoverable under reinsurance contracts for losses reported to the ceding insurer but not yet paid and amounts expected for incurred losses and settlement expenses, which have not yet been reported to the ceding insurer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after valuation allowance, recoverable under reinsurance contracts for losses reported to and paid by the ceding insurer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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