v3.26.3
Debt Securities - Continuous Unrealized Losses (Details)
$ in Millions
Sep. 30, 2026
USD ($)
security
Dec. 31, 2025
USD ($)
security
Estimated fair value    
Less than 12 months $ 3,761 $ 17
12 months or more 187 234
Gross unrealized losses    
Less than 12 months (32) 0
12 months or more $ (27) $ (22)
Debt securities, available-for-sale, unrealized loss position, number of positions | security 288 211
U.S. government and federal agency    
Estimated fair value    
Less than 12 months $ 3,146 $ 0
12 months or more 0 0
Gross unrealized losses    
Less than 12 months (17) 0
12 months or more 0 0
State and municipal    
Estimated fair value    
Less than 12 months 25 17
12 months or more 4 5
Gross unrealized losses    
Less than 12 months (3) 0
12 months or more (1) 0
Residential mortgage-backed    
Estimated fair value    
Less than 12 months 126 0
12 months or more 183 229
Gross unrealized losses    
Less than 12 months (7) 0
12 months or more (26) (22)
Asset-backed    
Estimated fair value    
Less than 12 months 464 0
12 months or more 0 0
Gross unrealized losses    
Less than 12 months (5) 0
12 months or more 0 0
Other Debt Obligations    
Estimated fair value    
Less than 12 months 0 0
12 months or more 0 0
Gross unrealized losses    
Less than 12 months 0 0
12 months or more $ 0 $ 0