v3.26.1
Market Risk Benefits (MRB Valuation) (Details)
Jun. 30, 2026
Jun. 30, 2025
Minimum    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-Duration Contracts, Assumptions by Product and Guarantee, Lapse Rate 0.50% 0.50%
Significant Unobservable Inputs Annuitization Rate 0.00% 0.00%
Maximum    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-Duration Contracts, Assumptions by Product and Guarantee, Lapse Rate 27.30% 27.30%
Significant Unobservable Inputs Annuitization Rate 100.00% 100.00%
Weighted Average    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-Duration Contracts, Assumptions by Product and Guarantee, Lapse Rate [1] 3.50% 3.40%
Significant Unobservable Inputs Annuitization Rate [1] 4.70% 4.60%
[1] The weighted-average lapse and annuitization rates are determined by weighting each treaty's rates by the MRB contract's fair value.