v3.25.2
LOANS - Consumer Loans and Ratios Outside of North America (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Jun. 30, 2024
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 725,345 $ 694,488  
Consumer loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income 395,759 393,102  
In offices outside North America | Consumer loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 75,742 71,378  
NCL ratio 1.59%   1.33%
In offices outside North America | Consumer loans | 30–89 days past due      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 387 $ 328  
Past due ratio 0.70% 0.61%  
In offices outside North America | Consumer loans | 90+ days past due      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 376 $ 310  
Past due ratio 0.68% 0.58%  
In offices outside North America | Consumer loans | Classifiably managed      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 20,620 $ 17,553  
In offices outside North America | Consumer loans | Delinquency-managed loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income 55,122 53,825  
In offices outside North America | Consumer loans | Classifiably Managed and Delinquency Managed      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income 77,700 72,500  
In offices outside North America | Consumer loans | Residential mortgages      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 24,083 24,456  
NCL ratio 0.22%   0.04%
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 $ 45 $ 38  
Past due ratio 0.19% 0.16%  
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 $ 68 $ 60  
Past due ratio 0.28% 0.25%  
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 24,083 24,456  
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 18,800 19,100  
In offices outside North America | Consumer loans | Credit cards      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 13,402 12,927  
NCL ratio 5.83%   4.70%
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 $ 224 $ 190  
Past due ratio 1.67% 1.47%  
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 $ 267 $ 214  
Past due ratio 1.99% 1.66%  
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 13,402 12,927  
In offices outside North America | Consumer loans | Personal, small business and other      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans, net of unearned income $ 38,257 $ 33,995  
NCL ratio 1.00%   0.96%
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   83.00%  
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 $ 118 $ 100  
Past due ratio 0.67% 0.61%  
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 $ 41 $ 36  
Past due ratio 0.23% 0.22%  
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 $ 20,620 $ 17,553  
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 17,637 16,442  
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 $ 29,000 $ 25,400  
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 53.00% 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   $ 17,600  
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 $ 29,000 $ 25,400