v3.25.2
Debt Securities - Continuous Unrealized Losses (Details)
$ in Millions
Jun. 30, 2025
USD ($)
security
Dec. 31, 2024
USD ($)
security
Estimated fair value    
Less than 12 months $ 76 $ 295
12 months or more 265 286
Gross unrealized losses    
Less than 12 months 0 (2)
12 months or more $ (27) $ (35)
Debt securities, available-for-sale, unrealized loss position, number of positions | security 221 224
U.S. government and federal agency    
Estimated fair value    
Less than 12 months $ 0 $ 199
12 months or more 0 0
Gross unrealized losses    
Less than 12 months 0 0
12 months or more 0 0
State and municipal    
Estimated fair value    
Less than 12 months 9 12
12 months or more 6 3
Gross unrealized losses    
Less than 12 months 0 (1)
12 months or more 0 0
Residential mortgage-backed    
Estimated fair value    
Less than 12 months 9 5
12 months or more 255 279
Gross unrealized losses    
Less than 12 months 0 0
12 months or more (27) (35)
Asset-backed    
Estimated fair value    
Less than 12 months 58 79
12 months or more 4 4
Gross unrealized losses    
Less than 12 months 0 (1)
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