Insurance and Contractholder Liabilities - Future Policy Benefits (Details) - Other Operations - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
Jun. 30, 2025 |
Dec. 31, 2024 |
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| Liability for Future Policy Benefit Activity [Line Items] | ||||
| Deferred profit liability included in future policy benefits | $ 344 | $ 353 | ||
| Future policy benefit, excluding deferred profit liability | 2,800 | $ 2,900 | 2,900 | $ 2,900 |
| Total liability for future policy benefits | 3,129 | $ 3,223 | 3,292 | |
| Undiscounted expected future policy benefits | 4,100 | 4,200 | ||
| Future policy benefits reserve, reinsurance recoverables | $ 800 | $ 900 | ||
| Life and annuity insurance products | ||||
| Liability for Future Policy Benefit Activity [Line Items] | ||||
| Interest accretion rate | 5.64% | 5.64% | ||
| Current discount rate | 5.38% | 5.27% | ||
| Weighted average duration | 10 years 8 months 12 days | 10 years 7 months 6 days |
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- Definition Liability For Future Policy Benefit, Excluding Deferred Profit Liability No definition available.
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- Definition Liability For Future Policy Benefits, Deferred Profit Liability 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/2003/role/disclosureRef
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- Definition Current weighted-average discount rate used to measure liability for future policy benefit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before effect of reinsurance, of undiscounted balance for expected future policy benefit and expense component of liability for future policy benefit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after allowance for credit loss, recoverable under reinsurance of liability for future policy benefit. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Weighted-average duration of liability for future policy benefit, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Original weighted-average discount rate at contract issue date used to measure liability for future policy benefit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before effect of reinsurance, of present value of future benefit to be paid to or on behalf of policyholder and related expense less present value of future net premium receivable under insurance contract. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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