Weighted Average Interest Rate for Life Policy Products (Details) - Life policy reserves:	Mar. 31, 2023	Mar. 31, 2022
Term Life Insurance
Liability for Future Policy Benefit, Activity [Line Items]
Interest accretion rate	5.32%	5.37%
Current discount rate	4.81%	3.40%
Whole Life Insurance
Liability for Future Policy Benefit, Activity [Line Items]
Interest accretion rate	5.94%	5.98%
Current discount rate	5.06%	3.77%

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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