v3.26.1
LOANS - Consumer Loans and Ratios Outside of North America (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 761,616 $ 752,230  
Consumer loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income 402,391 408,533  
In offices outside North America | Consumer loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 79,613 79,062  
NCL ratio 2.02%   1.62%
In offices outside North America | Consumer loans | 30–89 days past due      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 438 $ 419  
Past due ratio 0.78% 0.74%  
In offices outside North America | Consumer loans | 90+ days past due      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 449 $ 444  
Past due ratio 0.80% 0.78%  
In offices outside North America | Consumer loans | Classifiably managed      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 23,264 $ 22,297  
In offices outside North America | Consumer loans | Delinquency-managed loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income 56,349 56,765  
In offices outside North America | Consumer loans | Classifiably Managed and Delinquency Managed      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income 81,100 80,800  
In offices outside North America | Consumer loans | Residential mortgages      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 23,867 24,041  
NCL ratio 0.12%   0.08%
In offices outside North America | Consumer loans | Residential mortgages | 30–89 days past due      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 39 $ 35  
Past due ratio 0.16% 0.15%  
In offices outside North America | Consumer loans | Residential mortgages | 90+ days past due      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 77 $ 78  
Past due ratio 0.32% 0.32%  
In offices outside North America | Consumer loans | Residential mortgages | Classifiably managed      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 0 $ 0  
In offices outside North America | Consumer loans | Residential mortgages | Delinquency-managed loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income 23,867 24,041  
In offices outside North America | Consumer loans | Residential mortgages | Global Wealth Management Business      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income 18,400 18,600  
In offices outside North America | Consumer loans | Credit cards      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 14,319 14,701  
NCL ratio 7.00%   5.96%
In offices outside North America | Consumer loans | Credit cards | 30–89 days past due      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 265 $ 256  
Past due ratio 1.85% 1.74%  
In offices outside North America | Consumer loans | Credit cards | 90+ days past due      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 324 $ 317  
Past due ratio 2.26% 2.16%  
In offices outside North America | Consumer loans | Credit cards | Classifiably managed      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 0 $ 0  
In offices outside North America | Consumer loans | Credit cards | Delinquency-managed loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income 14,319 14,701  
In offices outside North America | Consumer loans | Personal, small business and other      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 41,427 $ 40,320  
NCL ratio 1.33%   1.05%
In offices outside North America | Consumer loans | Personal, small business and other | Internal Investment Grade      
Financing Receivable, Credit Quality Indicator [Line Items]      
Percentage of loans rated investment grade 79.00% 80.00%  
In offices outside North America | Consumer loans | Personal, small business and other | 30–89 days past due      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 134 $ 128  
Past due ratio 0.74% 0.71%  
In offices outside North America | Consumer loans | Personal, small business and other | 90+ days past due      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 48 $ 49  
Past due ratio 0.26% 0.27%  
In offices outside North America | Consumer loans | Personal, small business and other | Classifiably managed      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 23,264 $ 22,297  
In offices outside North America | Consumer loans | Personal, small business and other | Delinquency-managed loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income 18,163 18,023  
In offices outside North America | Consumer loans | Personal, small business and other | Global Wealth Management Business      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 31,500 $ 30,600  
In offices outside North America | Consumer loans | Personal, small business and other | Global Wealth Management Business | Internal Investment Grade      
Financing Receivable, Credit Quality Indicator [Line Items]      
Percentage of loans rated investment grade 56.00% 56.00%  
In offices outside North America | Consumer loans | Personal, small business and other | Global Wealth Management Business | Classifiably managed      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income   $ 22,300  
In offices outside North America | Consumer loans | Personal, small business and other | Global Wealth Management Business | Classifiably Managed and Delinquency Managed      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income   $ 30,600