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LIABILITIES FOR INSURANCE PRODUCTS - WEIGHTED AVERAGE DURATIONS OF LIABILITY (Details) | Sep. 30, 2025 | Sep. 30, 2024
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Other annuities |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |
Weighted average duration | 9 years 6 months | 9 years 7 months 6 days
Supplemental health |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |
Weighted average duration | 10 years 8 months 12 days | 11 years 1 month 6 days
Medicare supplement |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |
Weighted average duration | 5 years 6 months | 6 years 2 months 12 days
Long-term care |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |
Weighted average duration | 10 years 8 months 12 days | 10 years 8 months 12 days
Traditional life |  |
Liability for Future Policy Benefit, Activity [Line Items] |  |
Weighted average duration | 10 years 1 month 6 days | 10 years 3 months 18 days

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