Reserves for Future Policy Benefits and Claims Payable - Schedule of Revenue and Interest Related to Non-Participating Contracts (Details) - USD ($) $ in Millions |
9 Months Ended | 12 Months Ended |
|---|---|---|
Sep. 30, 2026 |
Dec. 31, 2025 |
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| Liability for Future Policy Benefit, Activity [Line Items] | ||
| Gross Premiums | $ 241 | $ 360 |
| Interest Expense | 241 | 331 |
| Payout Annuities | ||
| Liability for Future Policy Benefit, Activity [Line Items] | ||
| Gross Premiums | 40 | 67 |
| Interest Expense | 36 | 47 |
| Closed Block Life | ||
| Liability for Future Policy Benefit, Activity [Line Items] | ||
| Gross Premiums | 199 | 295 |
| Interest Expense | 86 | 115 |
| Closed Block Annuity | ||
| Liability for Future Policy Benefit, Activity [Line Items] | ||
| Gross Premiums | 2 | (2) |
| Interest Expense | $ 119 | $ 169 |
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- Definition Liability For Future Policy Benefit (Expense), Gross Premium Income 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 Amount of gross premium income recognized for liability for future policy benefit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of interest expense recognized for liability for future policy benefit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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