v3.26.1
LOANS AND LEASES - Modifications (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Financing Receivable, Modified [Line Items]    
Total $ 252 $ 348
% of total loan class 0.13% 0.26%
Amortized cost basis $ 568 $ 855
30-59 Days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 33 32
60-89  Days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 9 10
90 or  more days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 54 23
Total    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 96 65
Current    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 472 790
Commercial | Commercial and industrial    
Financing Receivable, Modified [Line Items]    
Total $ 172 $ 220
% of total loan class 0.19% 0.37%
Amortized cost basis $ 314 $ 496
Commercial | Commercial and industrial | 30-59 Days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 11 8
Commercial | Commercial and industrial | 60-89  Days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 1 0
Commercial | Commercial and industrial | 90 or  more days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 5 5
Commercial | Commercial and industrial | Total    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 17 13
Commercial | Commercial and industrial | Current    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 297 483
Commercial | Commercial real estate    
Financing Receivable, Modified [Line Items]    
Total $ 54 $ 97
% of total loan class 0.22% 0.88%
Amortized cost basis $ 149 $ 258
Commercial | Commercial real estate | 30-59 Days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 7 12
Commercial | Commercial real estate | 60-89  Days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 1 0
Commercial | Commercial real estate | 90 or  more days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 26 2
Commercial | Commercial real estate | Total    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 34 14
Commercial | Commercial real estate | Current    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 115 244
Consumer | Residential mortgage    
Financing Receivable, Modified [Line Items]    
Total $ 18 $ 24
% of total loan class 0.05% 0.10%
Amortized cost basis $ 73 $ 72
Consumer | Residential mortgage | 30-59 Days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 12 9
Consumer | Residential mortgage | 60-89  Days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 6 9
Consumer | Residential mortgage | 90 or  more days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 20 15
Consumer | Residential mortgage | Total    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 38 33
Consumer | Residential mortgage | Current    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 35 39
Consumer | Automobile    
Financing Receivable, Modified [Line Items]    
Total $ 5 $ 2
% of total loan class 0.03% 0.01%
Amortized cost basis $ 12 $ 11
Consumer | Automobile | 30-59 Days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 1 2
Consumer | Automobile | 60-89  Days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 0 0
Consumer | Automobile | 90 or  more days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 0 0
Consumer | Automobile | Total    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 1 2
Consumer | Automobile | Current    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 11 9
Consumer | Home equity    
Financing Receivable, Modified [Line Items]    
Total $ 3 $ 4
% of total loan class 0.03% 0.04%
Amortized cost basis $ 18 $ 15
Consumer | Home equity | 30-59 Days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 2 1
Consumer | Home equity | 60-89  Days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 1 1
Consumer | Home equity | 90 or  more days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 3 1
Consumer | Home equity | Total    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 6 3
Consumer | Home equity | Current    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 12 12
Consumer | RV and marine    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 1 1
Consumer | RV and marine | 30-59 Days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 0 0
Consumer | RV and marine | 60-89  Days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 0 0
Consumer | RV and marine | 90 or  more days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 0 0
Consumer | RV and marine | Total    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 0 0
Consumer | RV and marine | Current    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 1 1
Consumer | Other consumer    
Financing Receivable, Modified [Line Items]    
Total   $ 1
% of total loan class   0.05%
Amortized cost basis 1 $ 2
Consumer | Other consumer | 30-59 Days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 0 0
Consumer | Other consumer | 60-89  Days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 0 0
Consumer | Other consumer | 90 or  more days    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 0 0
Consumer | Other consumer | Total    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 0 0
Consumer | Other consumer | Current    
Financing Receivable, Modified [Line Items]    
Amortized cost basis 1 2
Interest rate reduction    
Financing Receivable, Modified [Line Items]    
Total 33 48
Interest rate reduction | Commercial | Commercial and industrial    
Financing Receivable, Modified [Line Items]    
Total $ 33 $ 47
Interest rate reduction | Commercial | Commercial and industrial | Minimum    
Financing Receivable, Modified [Line Items]    
Weighted-average contractual interest rate 10.54% 7.90%
Interest rate reduction | Commercial | Commercial and industrial | Maximum    
Financing Receivable, Modified [Line Items]    
Weighted-average contractual interest rate 7.53% 7.61%
Interest rate reduction | Commercial | Commercial real estate    
Financing Receivable, Modified [Line Items]    
Total $ 0 $ 0
Interest rate reduction | Consumer | Residential mortgage    
Financing Receivable, Modified [Line Items]    
Total 0 0
Interest rate reduction | Consumer | Automobile    
Financing Receivable, Modified [Line Items]    
Total 0 0
Interest rate reduction | Consumer | Home equity    
Financing Receivable, Modified [Line Items]    
Total 0 0
Interest rate reduction | Consumer | Other consumer    
Financing Receivable, Modified [Line Items]    
Total   1
Term extension    
Financing Receivable, Modified [Line Items]    
Total 154 290
Term extension | Commercial | Commercial and industrial    
Financing Receivable, Modified [Line Items]    
Total $ 82 $ 173
Weighted-average years added to the life 9 months 18 days 10 months 24 days
Term extension | Commercial | Commercial real estate    
Financing Receivable, Modified [Line Items]    
Total $ 54 $ 97
Weighted-average years added to the life 6 months 1 year
Term extension | Consumer | Residential mortgage    
Financing Receivable, Modified [Line Items]    
Total $ 12 $ 16
Weighted-average years added to the life   6 years 6 months
Term extension | Consumer | Automobile    
Financing Receivable, Modified [Line Items]    
Total 4 $ 2
Term extension | Consumer | Home equity    
Financing Receivable, Modified [Line Items]    
Total 2 2
Term extension | Consumer | Other consumer    
Financing Receivable, Modified [Line Items]    
Total   0
Payment deferral    
Financing Receivable, Modified [Line Items]    
Total 5 7
Payment deferral | Commercial | Commercial and industrial    
Financing Receivable, Modified [Line Items]    
Total 0 0
Payment deferral | Commercial | Commercial real estate    
Financing Receivable, Modified [Line Items]    
Total 0 0
Payment deferral | Consumer | Residential mortgage    
Financing Receivable, Modified [Line Items]    
Total 5 7
Payment deferral | Consumer | Automobile    
Financing Receivable, Modified [Line Items]    
Total 0 0
Payment deferral | Consumer | Home equity    
Financing Receivable, Modified [Line Items]    
Total 0 0
Payment deferral | Consumer | Other consumer    
Financing Receivable, Modified [Line Items]    
Total   0
Combo - interest rate reduction and term extension    
Financing Receivable, Modified [Line Items]    
Total 60 3
Combo - interest rate reduction and term extension | Commercial | Commercial and industrial    
Financing Receivable, Modified [Line Items]    
Total 57 0
Combo - interest rate reduction and term extension | Commercial | Commercial real estate    
Financing Receivable, Modified [Line Items]    
Total 0 0
Combo - interest rate reduction and term extension | Consumer | Residential mortgage    
Financing Receivable, Modified [Line Items]    
Total 1 1
Combo - interest rate reduction and term extension | Consumer | Automobile    
Financing Receivable, Modified [Line Items]    
Total 1 0
Combo - interest rate reduction and term extension | Consumer | Home equity    
Financing Receivable, Modified [Line Items]    
Total $ 1 2
Combo - interest rate reduction and term extension | Consumer | Other consumer    
Financing Receivable, Modified [Line Items]    
Total   $ 0