v3.25.2
LOANS - Defaults of Modified Consumer Loans (Details) - Consumer loans - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
In North America offices        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification $ 95 $ 105 $ 145 $ 156
In North America offices | Interest rate reduction        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 83 95 127 136
In North America offices | Term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 7 9 11 17
In North America offices | Payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
In North America offices | Combination: interest rate reduction and term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 5 1 7 3
In North America offices | Combination: term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
In North America offices | Combination: interest rate reduction, term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
In offices outside North America        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 4 2 6 4
In offices outside North America | Interest rate reduction        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 1 0 1 0
In offices outside North America | Term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
In offices outside North America | Payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 1 1 2 2
In offices outside North America | Combination: interest rate reduction and term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 2 1 3 2
In offices outside North America | Combination: term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
In offices outside North America | Combination: interest rate reduction, term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Residential mortgages | In North America offices        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 11 9 17 19
Residential mortgages | In North America offices | Interest rate reduction        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Residential mortgages | In North America offices | Term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 7 9 11 17
Residential mortgages | In North America offices | Payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Residential mortgages | In North America offices | Combination: interest rate reduction and term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 4 0 6 2
Residential mortgages | In North America offices | Combination: term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Residential mortgages | In North America offices | Combination: interest rate reduction, term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Residential mortgages | In offices outside North America        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 1 1 2 2
Residential mortgages | In offices outside North America | Interest rate reduction        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Residential mortgages | In offices outside North America | Term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Residential mortgages | In offices outside North America | Payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 1 1 2 2
Residential mortgages | In offices outside North America | Combination: interest rate reduction and term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Residential mortgages | In offices outside North America | Combination: term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Residential mortgages | In offices outside North America | Combination: interest rate reduction, term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Home equity loans | In North America offices        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Home equity loans | In North America offices | Interest rate reduction        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Home equity loans | In North America offices | Term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Home equity loans | In North America offices | Payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Home equity loans | In North America offices | Combination: interest rate reduction and term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Home equity loans | In North America offices | Combination: term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Home equity loans | In North America offices | Combination: interest rate reduction, term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Total credit cards | In North America offices        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 83 95 127 136
Total credit cards | In North America offices | Interest rate reduction        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 83 95 127 136
Total credit cards | In North America offices | Term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Total credit cards | In North America offices | Payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Total credit cards | In North America offices | Combination: interest rate reduction and term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Total credit cards | In North America offices | Combination: term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Total credit cards | In North America offices | Combination: interest rate reduction, term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Total credit cards | In offices outside North America        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 1 0 1 0
Total credit cards | In offices outside North America | Interest rate reduction        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 1 0 1 0
Total credit cards | In offices outside North America | Term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Total credit cards | In offices outside North America | Payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Total credit cards | In offices outside North America | Combination: interest rate reduction and term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Total credit cards | In offices outside North America | Combination: term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Total credit cards | In offices outside North America | Combination: interest rate reduction, term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Personal, small business and other | In North America offices        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 1 1 1 1
Personal, small business and other | In North America offices | Interest rate reduction        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Personal, small business and other | In North America offices | Term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Personal, small business and other | In North America offices | Payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Personal, small business and other | In North America offices | Combination: interest rate reduction and term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 1 1 1 1
Personal, small business and other | In North America offices | Combination: term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Personal, small business and other | In North America offices | Combination: interest rate reduction, term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Personal, small business and other | In offices outside North America        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 2 1 3 2
Personal, small business and other | In offices outside North America | Interest rate reduction        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Personal, small business and other | In offices outside North America | Term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Personal, small business and other | In offices outside North America | Payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Personal, small business and other | In offices outside North America | Combination: interest rate reduction and term extension        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 2 1 3 2
Personal, small business and other | In offices outside North America | Combination: term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification 0 0 0 0
Personal, small business and other | In offices outside North America | Combination: interest rate reduction, term extension and payment delay        
Financing Receivable, Modified [Line Items]        
Total loans defaulted within one year of modification $ 0 $ 0 $ 0 $ 0