v3.25.4
LOANS - Corporate Loans (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2025
USD ($)
category
Dec. 31, 2024
USD ($)
Loans and Leases Receivable Disclosure [Abstract]    
Number of loan categories | category 2  
Loans    
Loans, net of unearned income $ 752,230 $ 694,488
Portfolio-layer cumulative basis adjustments 17 (72)
Lease financing    
Loans    
Loans, net of unearned income 100 300
Corporate    
Loans    
Loans, net of unearned income 343,697 301,386
Corporate loans, net of unearned income, excluding portfolio layer cumulative basis adjustments 343,680 301,458
Portfolio-layer cumulative basis adjustments 17 (72)
Unearned income (1,100) (969)
Accrued interest receivable $ 2,000 $ 2,000
Accrued interest receivable, location Other assets Other assets
Loans sold and/or reclassified to held-for-sale $ 4,900 $ 5,200
Corporate | Commercial and industrial    
Loans    
Loans, net of unearned income 151,772 148,674
Corporate | Financial institutions    
Loans    
Loans, net of unearned income 98,878 68,378
Corporate | Mortgage and real estate    
Loans    
Loans, net of unearned income 27,786 26,546
Corporate | Lease financing    
Loans    
Loans, net of unearned income 119 276
In U.S. offices | Corporate    
Loans    
Loans, net of unearned income 170,667 143,720
In U.S. offices | Corporate | Commercial and industrial    
Loans    
Loans, net of unearned income 57,406 57,730
In U.S. offices | Corporate | Financial institutions    
Loans    
Loans, net of unearned income 72,154 41,815
In U.S. offices | Corporate | Mortgage and real estate    
Loans    
Loans, net of unearned income 17,931 18,411
In U.S. offices | Corporate | Installment and other(3)    
Loans    
Loans, net of unearned income 23,104 25,529
In U.S. offices | Corporate | Lease financing    
Loans    
Loans, net of unearned income 72 235
In offices outside the U.S. | Corporate    
Loans    
Loans, net of unearned income 173,013 157,738
In offices outside the U.S. | Corporate | Commercial and industrial    
Loans    
Loans, net of unearned income 96,886 92,856
In offices outside the U.S. | Corporate | Financial institutions    
Loans    
Loans, net of unearned income 27,054 27,276
In offices outside the U.S. | Corporate | Mortgage and real estate    
Loans    
Loans, net of unearned income 9,856 8,136
In offices outside the U.S. | Corporate | Installment and other(3)    
Loans    
Loans, net of unearned income 34,100 25,800
In offices outside the U.S. | Corporate | Lease financing    
Loans    
Loans, net of unearned income 47 40
In offices outside the U.S. | Corporate | Governments and official institutions    
Loans    
Loans, net of unearned income $ 5,070 $ 3,630