v3.25.1
Future Policy Benefit Reserves - Weighted Average Interest Rates (Details)
Mar. 31, 2025
Dec. 31, 2024
Mar. 31, 2024
Insurance [Abstract]      
Original locked in discount rate 5.19% 5.20% 5.22%
Upper-medium grade fixed income instrument discount rate 5.40% 5.51% 5.20%