v3.26.1
LOANS, LEASES, AND ALLOWANCE FOR CREDIT LOSSES (Summary of Outstanding Loan Balances (Accruing and Nonaccruing) Categorized by Credit Quality Indicators - Current Year) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Total loans          
2026 $ 5,680   $ 5,680   $ 10,252
2025 9,320   9,320   7,205
2024 6,277   6,277   5,114
2023 4,390   4,390   8,824
2022 7,869   7,869   5,665
Prior 13,348   13,348   9,135
Revolving loans amortized cost basis 14,968   14,968   14,014
Revolving loans converted to term loans amortized cost basis 629   629   691
Total loans 62,481   62,481   60,900
Gross charge-offs by year of loan origination          
2026 0 $ 1 0 $ 1  
2025 0 1 4 1  
2024 2 1 2 2  
2023 0 1 0 1  
2022 0 2 0 4  
Prior 5 2 7 13  
Revolving loans gross charge-offs 6 8 11 18  
Revolving loans converted to term loans gross charge-offs 1 0 1 0  
Total 14 16 25 40  
Commercial:          
Total loans          
2026 2,803   2,803   5,491
2025 4,902   4,902   4,156
2024 3,544   3,544   2,395
2023 2,198   2,198   3,277
2022 2,924   2,924   2,825
Prior 6,575   6,575   4,502
Revolving loans amortized cost basis 9,416   9,416   8,691
Revolving loans converted to term loans amortized cost basis 278   278   342
Total loans 32,640   32,640   31,679
Gross charge-offs by year of loan origination          
2026 0   0    
2025 0   4    
2024 2   2    
2023 0   0    
2022 0   0    
Prior 1   2    
Revolving loans gross charge-offs 4   6    
Revolving loans converted to term loans gross charge-offs 1   1    
Total 8 12 15 31  
Commercial real estate:          
Total loans          
2026 2,190   2,190   3,542
2025 3,228   3,228   1,820
2024 1,762   1,762   1,741
2023 1,427   1,427   2,286
2022 1,809   1,809   1,010
Prior 2,359   2,359   1,790
Revolving loans amortized cost basis 1,065   1,065   974
Revolving loans converted to term loans amortized cost basis 223   223   233
Total loans 14,063   14,063   13,396
Gross charge-offs by year of loan origination          
Total 3 1 3 1  
Consumer:          
Total loans          
2026 687   687   1,219
2025 1,190   1,190   1,229
2024 971   971   978
2023 765   765   3,261
2022 3,136   3,136   1,830
Prior 4,414   4,414   2,843
Revolving loans amortized cost basis 4,487   4,487   4,349
Revolving loans converted to term loans amortized cost basis 128   128   116
Total loans 15,778   15,778   15,825
Gross charge-offs by year of loan origination          
2026 0 0 0 0  
2025 0 0 0 0  
2024 0 0 0 0  
2023 0 0 0 0  
2022 0 0 0 1  
Prior 1 1 2 2  
Revolving loans gross charge-offs 2 2 5 5  
Revolving loans converted to term loans gross charge-offs 0 0 0 0  
Total 3 3 7 8  
Commercial and industrial | Commercial:          
Total loans          
2026 1,848   1,848   3,824
2025 3,397   3,397   2,232
2024 1,819   1,819   1,242
2023 1,099   1,099   992
2022 780   780   399
Prior 899   899   761
Revolving loans amortized cost basis 9,107   9,107   8,431
Revolving loans converted to term loans amortized cost basis 182   182   230
Total loans 19,131   19,131   18,111
Gross charge-offs by year of loan origination          
2026 0 0 0 0  
2025 0 1 4 1  
2024 2 1 2 2  
2023 0 1 0 1  
2022 0 2 0 3  
Prior 1 1 2 11  
Revolving loans gross charge-offs 3 6 5 13  
Revolving loans converted to term loans gross charge-offs 1 0 1 0  
Total 7 12 14 31  
Owner-occupied | Commercial:          
Total loans          
2026 733   733   1,125
2025 1,070   1,070   1,307
2024 1,169   1,169   744
2023 696   696   1,540
2022 1,429   1,429   1,575
Prior 3,864   3,864   2,653
Revolving loans amortized cost basis 309   309   259
Revolving loans converted to term loans amortized cost basis 66   66   71
Total loans 9,336   9,336   9,274
Gross charge-offs by year of loan origination          
2026 0   0    
2025 0   0    
2024 0   0    
2023 0   0    
2022 0   0    
Prior 0   0    
Revolving loans gross charge-offs 1   1    
Revolving loans converted to term loans gross charge-offs 0   0    
Total 1   1    
Municipal | Commercial:          
Total loans          
2026 222   222   542
2025 435   435   617
2024 556   556   409
2023 403   403   745
2022 715   715   851
Prior 1,812   1,812   1,088
Revolving loans amortized cost basis 0   0   1
Revolving loans converted to term loans amortized cost basis 30   30   41
Total loans 4,173   4,173   4,294
Term | Commercial real estate:          
Total loans          
2026 2,067   2,067   3,043
2025 2,464   2,464   1,266
2024 1,377   1,377   1,360
2023 1,246   1,246   2,239
2022 1,801   1,801   1,009
Prior 2,358   2,358   1,789
Revolving loans amortized cost basis 373   373   344
Revolving loans converted to term loans amortized cost basis 164   164   184
Total loans 11,850   11,850   11,234
Gross charge-offs by year of loan origination          
2026 0 1 0 1  
2025 0 0 0 0  
2024 0 0 0 0  
2023 0 0 0 0  
2022 0 0 0 0  
Prior 3 0 3 0  
Revolving loans gross charge-offs 0 0 0 0  
Revolving loans converted to term loans gross charge-offs 0 0 0 0  
Total 3 1 3 1  
Construction and land development | Commercial real estate:          
Total loans          
2026 123   123   499
2025 764   764   554
2024 385   385   381
2023 181   181   47
2022 8   8   1
Prior 1   1   1
Revolving loans amortized cost basis 692   692   630
Revolving loans converted to term loans amortized cost basis 59   59   49
Total loans 2,213   2,213   2,162
1-4 family residential | Consumer:          
Total loans          
2026 604   604   918
2025 752   752   852
2024 699   699   872
2023 724   724   3,159
2022 3,106   3,106   1,821
Prior 4,408   4,408   2,840
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 10,293   10,293   10,462
Gross charge-offs by year of loan origination          
2026   0   0  
2025   0   0  
2024   0   0  
2023   0   0  
2022   0   1  
Prior   1   2  
Revolving loans gross charge-offs   0   0  
Revolving loans converted to term loans gross charge-offs   0   0  
Total   1   3  
Home equity credit line | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 3,951   3,951   3,835
Revolving loans converted to term loans amortized cost basis 126   126   115
Total loans 4,077   4,077   3,950
Gross charge-offs by year of loan origination          
2026       0  
2025       0  
2024       0  
2023       0  
2022       0  
Prior       0  
Revolving loans gross charge-offs       1  
Revolving loans converted to term loans gross charge-offs       0  
Total       1  
Construction and other consumer real estate | Consumer:          
Total loans          
2026 51   51   246
2025 401   401   351
2024 253   253   87
2023 27   27   91
2022 22   22   5
Prior 3   3   2
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 757   757   782
Bankcard and other revolving plans | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 536   536   514
Revolving loans converted to term loans amortized cost basis 1   1   1
Total loans 537   537   515
Gross charge-offs by year of loan origination          
2026 0 0 0 0  
2025 0 0 0 0  
2024 0 0 0 0  
2023 0 0 0 0  
2022 0 0 0 0  
Prior 0 0 0 0  
Revolving loans gross charge-offs 2 2 5 4  
Revolving loans converted to term loans gross charge-offs 0 0 0 0  
Total 2 $ 2 5 $ 4  
Other | Consumer:          
Total loans          
2026 32   32   55
2025 37   37   26
2024 19   19   19
2023 14   14   11
2022 8   8   4
Prior 3   3   1
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 1   1   0
Total loans 114   114   116
Gross charge-offs by year of loan origination          
2026 0   0    
2025 0   0    
2024 0   0    
2023 0   0    
2022 0   0    
Prior 1   2    
Revolving loans gross charge-offs 0   0    
Revolving loans converted to term loans gross charge-offs 0   0    
Total 1   2    
Pass | Commercial and industrial | Commercial:          
Total loans          
2026 1,825   1,825   3,746
2025 3,240   3,240   2,058
2024 1,669   1,669   1,143
2023 963   963   898
2022 715   715   350
Prior 770   770   698
Revolving loans amortized cost basis 8,864   8,864   8,141
Revolving loans converted to term loans amortized cost basis 141   141   197
Total loans 18,187   18,187   17,231
Pass | Owner-occupied | Commercial:          
Total loans          
2026 712   712   1,112
2025 1,040   1,040   1,234
2024 1,096   1,096   727
2023 675   675   1,414
2022 1,323   1,323   1,492
Prior 3,684   3,684   2,515
Revolving loans amortized cost basis 277   277   227
Revolving loans converted to term loans amortized cost basis 63   63   67
Total loans 8,870   8,870   8,788
Pass | Municipal | Commercial:          
Total loans          
2026 222   222   542
2025 435   435   614
2024 556   556   409
2023 403   403   745
2022 715   715   849
Prior 1,810   1,810   1,070
Revolving loans amortized cost basis 0   0   1
Revolving loans converted to term loans amortized cost basis 30   30   41
Total loans 4,171   4,171   4,271
Pass | Term | Commercial real estate:          
Total loans          
2026 1,704   1,704   2,643
2025 2,302   2,302   1,223
2024 1,305   1,305   1,167
2023 1,094   1,094   1,741
2022 1,447   1,447   956
Prior 2,281   2,281   1,747
Revolving loans amortized cost basis 372   372   318
Revolving loans converted to term loans amortized cost basis 134   134   140
Total loans 10,639   10,639   9,935
Pass | Construction and land development | Commercial real estate:          
Total loans          
2026 114   114   446
2025 732   732   540
2024 339   339   375
2023 181   181   47
2022 8   8   1
Prior 1   1   1
Revolving loans amortized cost basis 687   687   624
Revolving loans converted to term loans amortized cost basis 59   59   49
Total loans 2,121   2,121   2,083
Pass | 1-4 family residential | Consumer:          
Total loans          
2026 604   604   917
2025 751   751   847
2024 695   695   867
2023 716   716   3,144
2022 3,090   3,090   1,808
Prior 4,366   4,366   2,812
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 10,222   10,222   10,395
Pass | Home equity credit line | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 3,915   3,915   3,799
Revolving loans converted to term loans amortized cost basis 121   121   111
Total loans 4,036   4,036   3,910
Pass | Construction and other consumer real estate | Consumer:          
Total loans          
2026 51   51   246
2025 401   401   351
2024 253   253   87
2023 27   27   91
2022 22   22   5
Prior 3   3   2
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 757   757   782
Pass | Bankcard and other revolving plans | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 533   533   511
Revolving loans converted to term loans amortized cost basis 1   1   1
Total loans 534   534   512
Pass | Other | Consumer:          
Total loans          
2026 32   32   55
2025 37   37   26
2024 19   19   19
2023 13   13   11
2022 8   8   4
Prior 3   3   1
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 1   1   0
Total loans 113   113   116
Special Mention | Commercial and industrial | Commercial:          
Total loans          
2026 1   1   14
2025 8   8   29
2024 34   34   13
2023 47   47   16
2022 1   1   28
Prior 63   63   30
Revolving loans amortized cost basis 54   54   99
Revolving loans converted to term loans amortized cost basis 2   2   1
Total loans 210   210   230
Special Mention | Owner-occupied | Commercial:          
Total loans          
2026 0   0   3
2025 10   10   28
2024 14   14   0
2023 5   5   9
2022 20   20   9
Prior 28   28   30
Revolving loans amortized cost basis 0   0   1
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 77   77   80
Special Mention | Municipal | Commercial:          
Total loans          
2026 0   0   0
2025 0   0   3
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 0   0   3
Special Mention | Term | Commercial real estate:          
Total loans          
2026 69   69   51
2025 8   8   0
2024 13   13   35
2023 25   25   71
2022 35   35   0
Prior 30   30   1
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 180   180   158
Special Mention | Construction and land development | Commercial real estate:          
Total loans          
2026 0   0   0
2025 0   0   8
2024 22   22   5
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 22   22   13
Special Mention | 1-4 family residential | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 0   0   0
Special Mention | Home equity credit line | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 0   0   0
Special Mention | Construction and other consumer real estate | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 0   0   0
Special Mention | Bankcard and other revolving plans | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 0   0   0
Special Mention | Other | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 0   0   0
Accruing Substandard | Commercial and industrial | Commercial:          
Total loans          
2026 7   7   60
2025 147   147   140
2024 110   110   82
2023 84   84   41
2022 43   43   18
Prior 61   61   30
Revolving loans amortized cost basis 165   165   177
Revolving loans converted to term loans amortized cost basis 21   21   9
Total loans 638   638   557
Accruing Substandard | Owner-occupied | Commercial:          
Total loans          
2026 21   21   4
2025 14   14   37
2024 58   58   15
2023 12   12   111
2022 78   78   71
Prior 122   122   89
Revolving loans amortized cost basis 27   27   24
Revolving loans converted to term loans amortized cost basis 3   3   4
Total loans 335   335   355
Accruing Substandard | Municipal | Commercial:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   18
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 0   0   18
Accruing Substandard | Term | Commercial real estate:          
Total loans          
2026 294   294   328
2025 135   135   43
2024 59   59   142
2023 127   127   426
2022 318   318   53
Prior 33   33   36
Revolving loans amortized cost basis 1   1   26
Revolving loans converted to term loans amortized cost basis 30   30   15
Total loans 997   997   1,069
Accruing Substandard | Construction and land development | Commercial real estate:          
Total loans          
2026 9   9   53
2025 32   32   6
2024 24   24   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 5   5   6
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 70   70   65
Accruing Substandard | 1-4 family residential | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   1
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 2   2   1
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 2   2   2
Accruing Substandard | Home equity credit line | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 6   6   10
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 6   6   10
Accruing Substandard | Construction and other consumer real estate | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 0   0   0
Accruing Substandard | Bankcard and other revolving plans | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 2   2   2
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 2   2   2
Accruing Substandard | Other | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 0   0   0
Nonaccrual | Commercial and industrial | Commercial:          
Total loans          
2026 15   15   4
2025 2   2   5
2024 6   6   4
2023 5   5   37
2022 21   21   3
Prior 5   5   3
Revolving loans amortized cost basis 24   24   14
Revolving loans converted to term loans amortized cost basis 18   18   23
Total loans 96   96   93
Nonaccrual | Owner-occupied | Commercial:          
Total loans          
2026 0   0   6
2025 6   6   8
2024 1   1   2
2023 4   4   6
2022 8   8   3
Prior 30   30   19
Revolving loans amortized cost basis 5   5   7
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 54   54   51
Nonaccrual | Municipal | Commercial:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   2
Prior 2   2   0
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 2   2   2
Nonaccrual | Term | Commercial real estate:          
Total loans          
2026 0   0   21
2025 19   19   0
2024 0   0   16
2023 0   0   1
2022 1   1   0
Prior 14   14   5
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   29
Total loans 34   34   72
Nonaccrual | Construction and land development | Commercial real estate:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   1
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 0   0   1
Nonaccrual | 1-4 family residential | Consumer:          
Total loans          
2026 0   0   1
2025 1   1   4
2024 4   4   5
2023 8   8   15
2022 16   16   13
Prior 40   40   27
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 69   69   65
Nonaccrual | Home equity credit line | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 30   30   26
Revolving loans converted to term loans amortized cost basis 5   5   4
Total loans 35   35   30
Nonaccrual | Construction and other consumer real estate | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 0   0   0
Nonaccrual | Bankcard and other revolving plans | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 1   1   1
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans 1   1   1
Nonaccrual | Other | Consumer:          
Total loans          
2026 0   0   0
2025 0   0   0
2024 0   0   0
2023 1   1   0
2022 0   0   0
Prior 0   0   0
Revolving loans amortized cost basis 0   0   0
Revolving loans converted to term loans amortized cost basis 0   0   0
Total loans $ 1   $ 1   $ 0