v3.25.4
Restructuring - Organizational Changes (Detail) - staff
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Total full-time equivalent staff      
Organizational Changes [Line Items]      
Full-time equivalent staff 535 168 476
Corporate Bank      
Organizational Changes [Line Items]      
Full-time equivalent staff 3 10 29
Investment Bank      
Organizational Changes [Line Items]      
Full-time equivalent staff 1 5 9
Private Bank      
Organizational Changes [Line Items]      
Full-time equivalent staff 519 116 377
Asset Management      
Organizational Changes [Line Items]      
Full-time equivalent staff 0 2 0
Corporate & Other      
Organizational Changes [Line Items]      
Full-time equivalent staff 12 35 61