Weighted Average Interest Rate for Life Policy Products (Details) - Life policy reserves:	Sep. 30, 2023	Sep. 30, 2022
Term Life Insurance
Liability for Future Policy Benefit, Activity [Line Items]
Interest accretion rate	5.29%	5.15%
Current discount rate	5.73%	5.18%
Whole Life Insurance
Liability for Future Policy Benefit, Activity [Line Items]
Interest accretion rate	5.92%	5.97%
Current discount rate	5.95%	5.51%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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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