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Future Policy Benefits - Actual Experience and Expected Experience for Mortality and Lapses (Details) | Jun. 30, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Actual experience | Traditional Life |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Mortality rate | 1.40% | 1.50% | 1.70%
Lapse rate | 0.10% | 0.00% | 0.10%
Actual experience | Immediate Annuities |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Mortality rate | 3.20% | 3.00% | 4.20%
Lapse rate | 0.00% | 0.00% | 0.00%
Actual experience | PRT |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Mortality rate | 2.30% | 1.90% | 0.00%
Lapse rate | 0.00% | 0.00% | 0.00%
Expected experience | Traditional Life |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Mortality rate | 1.40% | 1.30% | 1.30%
Lapse rate | 0.30% | 0.30% | 0.30%
Expected experience | Immediate Annuities |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Mortality rate | 1.60% | 1.90% | 2.00%
Lapse rate | 0.00% | 0.00% | 0.00%
Expected experience | PRT |  |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |  |
Mortality rate | 2.10% | 2.50% | 0.00%
Lapse rate | 0.00% | 0.00% | 0.00%

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