XML 76 R66.htm IDEA: XBRL DOCUMENT v3.25.3
Segment Reporting (Narrative) (Details)
$ in Billions
9 Months Ended
Sep. 30, 2025
USD ($)
segment
Dec. 31, 2024
USD ($)
Segment Reporting Information [Line Items]    
Number of operating segments 2  
Number of reportable segments 2  
Trust and Investment Services    
Segment Reporting Information [Line Items]    
Off balance sheet assets, fair value | $ $ 1.8 $ 1.7