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Basis of Financial Statements - Recent Developments (Details) - USD ($) $ in Millions | Jan. 01, 2023 | Sep. 30, 2023 | Jan. 13, 2023
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TitlePoint |  |  |
Business Acquisition [Line Items] |  |  |
Cash consideration | $ 224 |  |
7.40% F&G Senior Notes | Senior Notes |  |  |
Business Acquisition [Line Items] |  |  |
Debt instrument, interest rate, stated percentage |  | 7.40% | 7.40%
Aggregate principal amount |  |  | $ 500

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