v3.26.3
Long-Duration Insurance Contracts - Discount Rates for LFPB (Details)
Sep. 30, 2026
Sep. 30, 2025
Whole Life | Minimum    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Interest accretion rate 1.70% 1.70%
Current discount rate 5.50% 4.70%
Whole Life | Maximum    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Interest accretion rate 4.80% 4.80%
Current discount rate 6.60% 5.50%
Term Life | Minimum    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Interest accretion rate 4.20% 4.20%
Current discount rate 6.30% 5.10%
Term Life | Maximum    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Interest accretion rate 4.30% 4.20%
Current discount rate 6.40% 5.30%
Experience life    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Interest accretion rate 6.10% 6.10%
Current discount rate 6.40% 5.30%
Limited-Pay Whole Life    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Interest accretion rate 4.00% 4.00%
Current discount rate 6.70% 5.70%
Supplemental health | Minimum    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Interest accretion rate 1.70% 1.70%
Current discount rate 6.40% 5.30%
Supplemental health | Maximum    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Interest accretion rate 2.90% 2.80%
Current discount rate 6.60% 5.50%
SPIA (life contingent) | Minimum    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Interest accretion rate 1.70% 1.70%
Current discount rate 6.20% 5.00%
SPIA (life contingent) | Maximum    
Liability for Future Policy Benefit, by Product Segment [Line Items]    
Interest accretion rate 4.10% 4.10%
Current discount rate 6.30% 5.10%