v3.26.3
Contracts Accounted for as Financial Guaranty Insurance - Expected Future Premium Collections and Earnings (Details)
$ in Millions
9 Months Ended
Sep. 30, 2026
USD ($)
Consolidated Entity Excluding Variable Interest Entities (VIE)  
Future Premiums to be Collected [Abstract]  
2026 (October 1 - December 31) $ 68
2027 164
2028 133
2029 117
2030 105
2031-2035 436
2036-2040 354
2041-2045 273
2046-2050 208
2051-2055 123
After 2055 126
Total 2,107
Financial Guarantee Insurance Product Line  
Earnings of Deferred Premium Revenue  
2026 (October 1 - December 31) 81
2027 303
2028 280
2029 257
2030 239
2031-2035 937
2036-2040 611
2041-2045 409
2046-2050 266
2051-2055 133
After 2055 103
Total 3,619
Accretion of Discount  
2026 (October 1 - December 31) 11
2027 40
2028 38
2029 35
2030 34
2031-2035 144
2036-2040 106
2041-2045 72
2046-2050 42
2051-2055 20
After 2055 17
Total 559
Total  
2026 (October 1 - December 31) 92
2027 343
2028 318
2029 292
2030 273
2031-2035 1,081
2036-2040 717
2041-2045 481
2046-2050 308
2051-2055 153
After 2055 120
Total $ 4,178