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LIABILITIES FOR INSURANCE PRODUCTS - WEIGHTED AVERAGE DURATIONS OF LIABILITY (Details)
Mar. 31, 2025
Mar. 31, 2024
Other annuities    
Liability for Future Policy Benefit, Activity [Line Items]    
Weighted average duration 9 years 7 months 6 days 9 years 7 months 6 days
Supplemental health    
Liability for Future Policy Benefit, Activity [Line Items]    
Weighted average duration 11 years 3 months 18 days 11 years 3 months 18 days
Medicare supplement    
Liability for Future Policy Benefit, Activity [Line Items]    
Weighted average duration 6 years 3 months 18 days 6 years 4 months 24 days
Long-term care    
Liability for Future Policy Benefit, Activity [Line Items]    
Weighted average duration 10 years 9 months 18 days 10 years 7 months 6 days
Traditional life    
Liability for Future Policy Benefit, Activity [Line Items]    
Weighted average duration 10 years 2 months 12 days 10 years 4 months 24 days