v3.26.1
Segment Reporting - Reconciliation of Business Segment Results to Consolidated (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Segment Reporting Information [Line Items]    
Total revenue $ 6,165 $ 5,452
Total noninterest expense 3,768 3,387
Net income 1,772 1,499
Average Assets 601,462 556,377
Operating Segments    
Segment Reporting Information [Line Items]    
Total revenue 7,380 6,565
Total noninterest expense 3,483 3,137
Net income 2,850 2,483
Average Assets 395,209 356,727
Other Segments    
Segment Reporting Information [Line Items]    
Total revenue (1,215) (1,113)
Average Assets 206,253 199,650
Other Segments | Other Reclassification Activities    
Segment Reporting Information [Line Items]    
Total noninterest expense 285 250
Net income $ (1,078) $ (984)