v3.26.3
Loans - Consumer, Excluding Credit Card Loan Portfolio, Residential Real Estate, Payment Status of FDMs and Defaults of FDMs (Details) - Consumer, excluding credit card - Residential real estate - USD ($)
$ in Millions
Sep. 30, 2026
Sep. 30, 2025
Financing Receivable, Modified [Line Items]    
Amortized cost of FDMs during the last 12 months $ 379 $ 1,062
Current    
Financing Receivable, Modified [Line Items]    
Amortized cost of FDMs during the last 12 months 280 356
30–149 days past due    
Financing Receivable, Modified [Line Items]    
Amortized cost of FDMs during the last 12 months 44 76
150 or more days past due    
Financing Receivable, Modified [Line Items]    
Amortized cost of FDMs during the last 12 months $ 55 $ 630