v3.26.1
Mortgage Servicing - Narrative (Details) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Mortgage Servicing    
Escrow balance $ 1,240 $ 1,340
Fee-based servicing portfolio    
Mortgage Servicing    
Escrow balance $ 1,250 $ 1,350
MSRs | Agency Business    
Mortgage Servicing    
Weighted average servicing fee rate (basis points) 0.35% 0.356%