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Investments - Narrative (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2022 | Dec. 31, 2021
Investment Holdings |  |
Investment grade rating | 94.90% |
Fair Value | $ 5,272.1 | $ 6,239.3
FHLB funding agreements | $ 842.5 | $ 787.5
Investment Grade |  |
Investment Holdings |  |
Increase in credit spread (percent) | 0.69% |
Decrease in total returns (percent) | 18.30% |
Increase to Bloomberg Barclays Index Yield-To-Worst (percent) | 3.40% |
Bloomberg Barclays Index Yield-to-Worst | 5.70% |
High Yield |  |
Investment Holdings |  |
Increase in credit spread (percent) | 2.33% |
Decrease in total returns (percent) | 14.60% |
Increase to Bloomberg Barclays Index Yield-To-Worst (percent) | 5.50% |
Bloomberg Barclays Index Yield-to-Worst | 9.70% |
10-year U.S. Treasury |  |
Investment Holdings |  |
Increase in interest rates | 2.32% |
Federal interest rate on securities (percent) | 3.83% | 1.51%
FHLB of Chicago |  |
Investment Holdings |  |
Fair Value | $ 920.7 | $ 870.1
Governmental Agencies as Required by Law in Various States |  |
Investment Holdings |  |
Fair Value | $ 30.0 | $ 26.2

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