v3.26.1
Goodwill - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Feb. 01, 2026
Mar. 31, 2026
Dec. 31, 2025
Goodwill [Line Items]      
Acquisition activity   $ 5,019 $ 29
Comerica Incorporated      
Goodwill [Line Items]      
Acquisition activity $ 5,000