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F&G Insurance Subsidiary Financial Information and Regulatory Matters - Narrative (Details) $ in Millions | Jun. 30, 2025 USD ($) permitted_practice | Dec. 31, 2024 USD ($)
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Statutory Accounting Practices |  |
Number of permitted practices | permitted_practice | 2 |
Vermont | Raven Re (VT) |  |
Statutory Accounting Practices |  |
Permitted practice, statutory surplus | $ (83) | $ (64)
IOWA |  |
Statutory Accounting Practices |  |
Change in statutory capital surplus increase (decrease) | $ 252 | $ 454

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