v3.26.1
Goodwill and Other Assets, Other Assets (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Jan. 31, 2026
Dec. 31, 2025
Jun. 30, 2025
Components of Other Assets [Line Items]        
Corporate/bank-owned life insurance $ 19,734   $ 19,757  
Accounts receivable 27,325   19,651  
Loans held for sale 2,803   4,482  
Mortgage servicing rights 5,941   6,327 $ 7,048
Operating lease assets (lessor) 711   4,999  
Operating lease right-of-use (ROU) assets (lessee) 3,633   3,641  
Other 18,002   15,578  
Other assets 85,232   81,297  
Customer relationships, merchant contracts [Member]        
Estimated future amortization expense [Abstract]        
Estimated future amortization expense for the remainder of 2026 62      
Estimated future amortization expense for the year ended December 31, 2027 125      
Estimated future amortization expense for the year ended December 31, 2028 125      
Estimated future amortization expense for the year ended December 31, 2029 125      
Estimated future amortization expense for the year ended December 31, 2030 125      
Estimated future amortization expense for the year ended December 31, 2031 125      
Railroad transportation equipment [Member]        
Components of Other Assets [Line Items]        
Loans held for sale   $ 1,000    
Railroad transportation equipment [Member] | Disposal group, held-for-sale, not discontinued operations [Member]        
Components of Other Assets [Line Items]        
Operating lease assets (lessor)   $ 4,300    
AFS and HTM debt securities [Member]        
Components of Other Assets [Line Items]        
Interest receivable 1,800   1,660  
Loans [Member]        
Components of Other Assets [Line Items]        
Interest receivable 3,444   3,330  
Trading and other [Member]        
Components of Other Assets [Line Items]        
Interest receivable $ 1,839   $ 1,872