Future Contract Benefit - Summary of Weighted-Average Interest Rates (Details)	Jun. 30, 2024	Jun. 30, 2023
Payout Annuities
Liability for Future Policy Benefit, Activity [Line Items]
Interest accretion rate	4.00%	3.90%
Current discount rate	5.40%	5.20%
Traditional Life
Liability for Future Policy Benefit, Activity [Line Items]
Interest accretion rate	5.00%	5.10%
Current discount rate	5.20%	5.10%

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Current weighted-average discount rate used to measure liability for future policy benefit.

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Original weighted-average discount rate at contract issue date used to measure liability for future policy benefit.

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