v3.26.1
Business Segments - Depreciation and Amortization (Detail) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Segment Reporting Information [Line Items]    
Total $ 495 $ 506
Global Banking & Markets    
Segment Reporting Information [Line Items]    
Total 291 288
Asset & Wealth Management    
Segment Reporting Information [Line Items]    
Total 185 190
Platform Solutions    
Segment Reporting Information [Line Items]    
Total $ 19 $ 28