v3.26.1
Loans and Related Allowance for Credit Losses (Delinquency Status of Commercial FDMS) (Details) - Total commercial lending - USD ($)
$ in Millions
Jun. 30, 2026
Jun. 30, 2025
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis $ 3,523 $ 2,249
Current or Less Than 30 Days Past Due    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis 3,086 1,829
30-59 Days Past Due    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis 4 9
60-89 Days Past Due    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis 0 4
90 Days or More Past Due    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis 0 0
Nonperforming Loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis 433 407
Commercial and industrial    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis 1,949 1,237
Commercial and industrial | Current or Less Than 30 Days Past Due    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis 1,703 1,118
Commercial and industrial | 30-59 Days Past Due    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis 4 9
Commercial and industrial | 60-89 Days Past Due    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis 0 4
Commercial and industrial | 90 Days or More Past Due    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis 0 0
Commercial and industrial | Nonperforming Loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis 242 106
Commercial real estate    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis 1,574 1,012
Commercial real estate | Current or Less Than 30 Days Past Due    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis 1,383 711
Commercial real estate | 30-59 Days Past Due    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis 0 0
Commercial real estate | 60-89 Days Past Due    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis 0 0
Commercial real estate | 90 Days or More Past Due    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis 0 0
Commercial real estate | Nonperforming Loans    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financing receivable, aging analysis $ 191 $ 301