v3.26.1
Assured Life Re Acquisition - Additional Information (Details) - USD ($)
$ in Millions
2 Months Ended 3 Months Ended 9 Months Ended
Jan. 21, 2026
Mar. 31, 2026
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Assured Guaranty Re Ltd. | BERMUDA          
Business Combination [Line Items]          
Dividend payment restrictions schedule, percentage of statutory capital and surplus     25.00%    
Statutory amount available for dividend payments without regulatory approval   $ 41 $ 41   $ 41
Statutory amount available for dividend payments, deficit   0 0   0
Unencumbered Asset   25 25   25
Dividend payment restrictions schedule amount of statutory capital     31    
Assured Life Re Acquisition          
Business Combination [Line Items]          
Voting equity interest acquired, percentage 100.00%        
Payments to acquire businesses, gross $ 158        
Acquiree's revenue since acquisition date, actual   14      
Acquiree's earnings (loss) since acquisition date, actual   $ 2      
Business Combination, Acquisition-Related Cost, Expense     4   $ 7
Pro forma revenue     257 $ 349  
Pro forma income (loss), after tax     $ 81 $ 178  
Assured Life Re Acquisition | Pension Risk Transfers Insurance Liabilities          
Business Combination [Line Items]          
Acquired assets, weighted average useful life 10 years 3 months 18 days        
Assured Life Re Acquisition | Multi-year Guaranteed Annuity Policyholder Balances          
Business Combination [Line Items]          
Acquired assets, weighted average useful life 2 years 3 months 18 days        
Assured Life Re Acquisition, Pension Risk Transfers          
Business Combination [Line Items]          
Value of business acquired $ 14        
Assured Life Re Acquisition, Multi-year Guaranteed Annuities          
Business Combination [Line Items]          
Value of business acquired $ (14)