v3.26.1
LOANS, LEASES, AND ALLOWANCE FOR CREDIT LOSSES (Summary of Outstanding Loan Balances (Accruing and Nonaccruing) Categorized by Credit Quality Indicators - Prior 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          
2025 $ 5,680   $ 5,680   $ 10,252
2024 9,320   9,320   7,205
2023 6,277   6,277   5,114
2022 4,390   4,390   8,824
2021 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          
2025 0 $ 1 0 $ 1  
2024 0 1 4 1  
2023 2 1 2 2  
2022 0 1 0 1  
2021 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          
2025 2,803   2,803   5,491
2024 4,902   4,902   4,156
2023 3,544   3,544   2,395
2022 2,198   2,198   3,277
2021 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          
2025 0   0    
2024 0   4    
2023 2   2    
2022 0   0    
2021 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          
2025 2,190   2,190   3,542
2024 3,228   3,228   1,820
2023 1,762   1,762   1,741
2022 1,427   1,427   2,286
2021 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          
2025 687   687   1,219
2024 1,190   1,190   1,229
2023 971   971   978
2022 765   765   3,261
2021 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          
2025 0 0 0 0  
2024 0 0 0 0  
2023 0 0 0 0  
2022 0 0 0 0  
2021 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          
2025 1,848   1,848   3,824
2024 3,397   3,397   2,232
2023 1,819   1,819   1,242
2022 1,099   1,099   992
2021 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          
2025 0 0 0 0  
2024 0 1 4 1  
2023 2 1 2 2  
2022 0 1 0 1  
2021 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          
2025 733   733   1,125
2024 1,070   1,070   1,307
2023 1,169   1,169   744
2022 696   696   1,540
2021 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          
2025 0   0    
2024 0   0    
2023 0   0    
2022 0   0    
2021 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          
2025 222   222   542
2024 435   435   617
2023 556   556   409
2022 403   403   745
2021 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          
2025 2,067   2,067   3,043
2024 2,464   2,464   1,266
2023 1,377   1,377   1,360
2022 1,246   1,246   2,239
2021 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          
2025 0 1 0 1  
2024 0 0 0 0  
2023 0 0 0 0  
2022 0 0 0 0  
2021 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          
2025 123   123   499
2024 764   764   554
2023 385   385   381
2022 181   181   47
2021 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          
2025 604   604   918
2024 752   752   852
2023 699   699   872
2022 724   724   3,159
2021 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          
2025   0   0  
2024   0   0  
2023   0   0  
2022   0   0  
2021   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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025       0  
2024       0  
2023       0  
2022       0  
2021       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          
2025 51   51   246
2024 401   401   351
2023 253   253   87
2022 27   27   91
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025 0 0 0 0  
2024 0 0 0 0  
2023 0 0 0 0  
2022 0 0 0 0  
2021 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          
2025 32   32   55
2024 37   37   26
2023 19   19   19
2022 14   14   11
2021 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          
2025 0   0    
2024 0   0    
2023 0   0    
2022 0   0    
2021 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          
2025 1,825   1,825   3,746
2024 3,240   3,240   2,058
2023 1,669   1,669   1,143
2022 963   963   898
2021 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          
2025 712   712   1,112
2024 1,040   1,040   1,234
2023 1,096   1,096   727
2022 675   675   1,414
2021 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          
2025 222   222   542
2024 435   435   614
2023 556   556   409
2022 403   403   745
2021 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          
2025 1,704   1,704   2,643
2024 2,302   2,302   1,223
2023 1,305   1,305   1,167
2022 1,094   1,094   1,741
2021 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          
2025 114   114   446
2024 732   732   540
2023 339   339   375
2022 181   181   47
2021 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          
2025 604   604   917
2024 751   751   847
2023 695   695   867
2022 716   716   3,144
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025 51   51   246
2024 401   401   351
2023 253   253   87
2022 27   27   91
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025 32   32   55
2024 37   37   26
2023 19   19   19
2022 13   13   11
2021 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          
2025 1   1   14
2024 8   8   29
2023 34   34   13
2022 47   47   16
2021 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          
2025 0   0   3
2024 10   10   28
2023 14   14   0
2022 5   5   9
2021 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          
2025 0   0   0
2024 0   0   3
2023 0   0   0
2022 0   0   0
2021 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          
2025 69   69   51
2024 8   8   0
2023 13   13   35
2022 25   25   71
2021 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          
2025 0   0   0
2024 0   0   8
2023 22   22   5
2022 0   0   0
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025 7   7   60
2024 147   147   140
2023 110   110   82
2022 84   84   41
2021 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          
2025 21   21   4
2024 14   14   37
2023 58   58   15
2022 12   12   111
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025 294   294   328
2024 135   135   43
2023 59   59   142
2022 127   127   426
2021 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          
2025 9   9   53
2024 32   32   6
2023 24   24   0
2022 0   0   0
2021 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          
2025 0   0   0
2024 0   0   1
2023 0   0   0
2022 0   0   0
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025 15   15   4
2024 2   2   5
2023 6   6   4
2022 5   5   37
2021 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          
2025 0   0   6
2024 6   6   8
2023 1   1   2
2022 4   4   6
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025 0   0   21
2024 19   19   0
2023 0   0   16
2022 0   0   1
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   1
2022 0   0   0
2021 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          
2025 0   0   1
2024 1   1   4
2023 4   4   5
2022 8   8   15
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 0   0   0
2021 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          
2025 0   0   0
2024 0   0   0
2023 0   0   0
2022 1   1   0
2021 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