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Future Policy Benefits -Weighted Average Rates (Details) | Mar. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Traditional Life |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate | 2.33% | 2.32% | 2.29%
Liability for Future Policy Benefit, Current Weighted-Average Discount Rate | 4.96% | 5.37% | 2.41%
Immediate Annuities |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate | 3.11% | 3.07% | 3.04%
Liability for Future Policy Benefit, Current Weighted-Average Discount Rate | 5.02% | 5.21% | 3.07%
PRT |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate | 3.82% | 3.20% | 1.20%
Liability for Future Policy Benefit, Current Weighted-Average Discount Rate | 5.08% | 5.40% | 2.79%

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