v3.26.1
Segment Information - Segment Information (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]        
Revenues $ 195 $ 281 $ 456 $ 626
Segment loss and LAE (benefit) 4 28 21 68
Interest accrual 8 0 15 0
Employee compensation and benefit expenses 57 50 120 110
Segment amortization of DAC 5 5 10 10
Segment expenses 135 151 362 320
Segment equity in earnings (losses) of investees (11) 3 20 56
Less: Provision (benefit) for income taxes 9 27 (11) 71
Net investment income 98 89 190 176
Intersegment Eliminations        
Segment Reporting [Line Items]        
Revenues (2) 0 (26) 16
Segment expenses (3) (2) (5) (4)
Segment equity in earnings (losses) of investees 0 (1) (2) (7)
Less: Provision (benefit) for income taxes 0 (1) (5) 0
Operating Segments        
Segment Reporting [Line Items]        
Revenues 214 214 524 459
Segment expenses 100 114 286 182
Segment equity in earnings (losses) of investees (15) 1 (1) 44
Less: Provision (benefit) for income taxes 16 21 8 61
Financial Guaranty | Operating Segments Excluding Intersegment Elimination        
Segment Reporting [Line Items]        
Revenues 197 196 377 433
Financial Guaranty | Intersegment Eliminations        
Segment Reporting [Line Items]        
Revenues 2 3 4 5
Financial Guaranty | Operating Segments        
Segment Reporting [Line Items]        
Revenues 199 199 381 438
Segment loss and LAE (benefit) 5 27 22 4
Interest accrual 0 0 0 0
Employee compensation and benefit expenses 47 44 101 96
Segment amortization of DAC 5 5 10 10
Other segment items 30 29 61 59
Segment expenses 87 105 194 169
Segment equity in earnings (losses) of investees (10) 2 (2) 32
Less: Provision (benefit) for income taxes 17 20 (2) 57
Segment adjusted operating income (loss) 85 76 187 244
Net investment income 89 89 177 175
Non-cash compensation and operating expenses 15 14 36 32
Annuity Reinsurance Segment | Operating Segments Excluding Intersegment Elimination        
Segment Reporting [Line Items]        
Revenues 15   25  
Annuity Reinsurance Segment | Intersegment Eliminations        
Segment Reporting [Line Items]        
Revenues 0   0  
Annuity Reinsurance Segment | Operating Segments        
Segment Reporting [Line Items]        
Revenues 15   25  
Segment loss and LAE (benefit) 0   0  
Interest accrual 8   15  
Employee compensation and benefit expenses 3   5  
Segment amortization of DAC 0   0  
Other segment items 2   4  
Segment expenses 13   24  
Segment equity in earnings (losses) of investees 0   0  
Less: Provision (benefit) for income taxes 0   (1)  
Segment adjusted operating income (loss) 2   2  
Net investment income 11   16  
Non-cash compensation and operating expenses 0   1  
Asset Management | Operating Segments Excluding Intersegment Elimination        
Segment Reporting [Line Items]        
Revenues 0 13 94 18
Asset Management | Intersegment Eliminations        
Segment Reporting [Line Items]        
Revenues 0 2 24 3
Asset Management | Operating Segments        
Segment Reporting [Line Items]        
Revenues 0 15 118 21
Segment loss and LAE (benefit) 0 0 0 0
Interest accrual 0 0 0 0
Employee compensation and benefit expenses 0 0 0 0
Segment amortization of DAC 0 0 0 0
Other segment items 0 9 68 13
Segment expenses 0 9 68 13
Segment equity in earnings (losses) of investees (5) (1) 1 12
Less: Provision (benefit) for income taxes (1) 1 11 4
Segment adjusted operating income (loss) (4) 4 40 16
Net investment income 0 0 0 0
Non-cash compensation and operating expenses $ 0 $ 0 $ 0 $ 0