v3.26.3
Loans and ACL - Aging Analysis of Loans and Leases (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Financing Receivable [Line Items]    
Without an ALLL $ 90 $ 12
With an ALLL 1,203 1,565
Total 323,930 328,595
Current    
Financing Receivable [Line Items]    
Accruing 320,422 324,354
30-89 Days Past Due    
Financing Receivable [Line Items]    
Accruing 1,512 1,980
90 Days or More Past Due    
Financing Receivable [Line Items]    
Accruing 703 684
Indirect auto    
Financing Receivable [Line Items]    
Accruing 5,500  
Commercial: | Commercial and industrial    
Financing Receivable [Line Items]    
Without an ALLL 72 5
With an ALLL 661 834
Total 167,316 167,808
Commercial: | Commercial and industrial | Current    
Financing Receivable [Line Items]    
Accruing 166,354 166,839
Commercial: | Commercial and industrial | 30-89 Days Past Due    
Financing Receivable [Line Items]    
Accruing 229 127
Commercial: | Commercial and industrial | 90 Days or More Past Due    
Financing Receivable [Line Items]    
Accruing 0 3
Commercial: | CRE    
Financing Receivable [Line Items]    
Without an ALLL 0 0
With an ALLL 43 47
Total 25,897 23,720
Commercial: | CRE | Current    
Financing Receivable [Line Items]    
Accruing 25,840 23,648
Commercial: | CRE | 30-89 Days Past Due    
Financing Receivable [Line Items]    
Accruing 14 25
Commercial: | CRE | 90 Days or More Past Due    
Financing Receivable [Line Items]    
Accruing 0 0
Commercial: | Commercial construction    
Financing Receivable [Line Items]    
Without an ALLL 18 0
With an ALLL 0 41
Total 7,458 7,783
Commercial: | Commercial construction | Current    
Financing Receivable [Line Items]    
Accruing 7,426 7,706
Commercial: | Commercial construction | 30-89 Days Past Due    
Financing Receivable [Line Items]    
Accruing 14 36
Commercial: | Commercial construction | 90 Days or More Past Due    
Financing Receivable [Line Items]    
Accruing 0 0
Consumer: | Residential mortgage    
Financing Receivable [Line Items]    
Without an ALLL 0 6
With an ALLL 225 207
Total 58,203 56,807
Consumer: | Residential mortgage | Current    
Financing Receivable [Line Items]    
Accruing 56,695 55,338
Consumer: | Residential mortgage | 30-89 Days Past Due    
Financing Receivable [Line Items]    
Accruing 669 686
Consumer: | Residential mortgage | 90 Days or More Past Due    
Financing Receivable [Line Items]    
Accruing 614 570
Consumer: | Residential mortgage | 90 Days or More Past Due | Government guaranteed loans    
Financing Receivable [Line Items]    
Accruing 568 532
Consumer: | Home equity    
Financing Receivable [Line Items]    
Without an ALLL 0 1
With an ALLL 94 98
Total 9,687 9,719
Consumer: | Home equity | Current    
Financing Receivable [Line Items]    
Accruing 9,531 9,544
Consumer: | Home equity | 30-89 Days Past Due    
Financing Receivable [Line Items]    
Accruing 56 69
Consumer: | Home equity | 90 Days or More Past Due    
Financing Receivable [Line Items]    
Accruing 6 7
Consumer: | Indirect auto    
Financing Receivable [Line Items]    
Without an ALLL 0 0
With an ALLL 101 267
Total 17,092 25,659
Consumer: | Indirect auto | Current    
Financing Receivable [Line Items]    
Accruing 16,781 24,713
Consumer: | Indirect auto | 30-89 Days Past Due    
Financing Receivable [Line Items]    
Accruing 210 679
Consumer: | Indirect auto | 90 Days or More Past Due    
Financing Receivable [Line Items]    
Accruing 0 0
Consumer: | Other consumer    
Financing Receivable [Line Items]    
Without an ALLL 0 0
With an ALLL 79 71
Total 33,486 32,181
Consumer: | Other consumer | Current    
Financing Receivable [Line Items]    
Accruing 33,134 31,801
Consumer: | Other consumer | 30-89 Days Past Due    
Financing Receivable [Line Items]    
Accruing 254 281
Consumer: | Other consumer | 90 Days or More Past Due    
Financing Receivable [Line Items]    
Accruing 19 28
Credit card    
Financing Receivable [Line Items]    
Without an ALLL 0 0
With an ALLL 0 0
Total 4,791 4,918
Credit card | Current    
Financing Receivable [Line Items]    
Accruing 4,661 4,765
Credit card | 30-89 Days Past Due    
Financing Receivable [Line Items]    
Accruing 66 77
Credit card | 90 Days or More Past Due    
Financing Receivable [Line Items]    
Accruing $ 64 $ 76