v3.25.2
LOANS, LEASES, AND ALLOWANCE FOR CREDIT LOSSES (Summary of Past Due Loans (Accruing and Nonaccruing)) (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans $ 60,833 $ 59,410
90+ days past due 4 18
Nonaccrual loans that are current 308 297
Commercial:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 31,646 30,965
90+ days past due 3 14
Nonaccrual loans that are current 159 158
Commercial: | Commercial and industrial    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 17,526 16,891
90+ days past due 2 1
Nonaccrual loans that are current 113 114
Commercial: | Owner-occupied    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 9,377 9,333
90+ days past due 0 3
Nonaccrual loans that are current 39 31
Commercial: | Municipal    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 4,376 4,364
90+ days past due 1 10
Nonaccrual loans that are current 5 11
Commercial: | Leasing    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 367 377
90+ days past due 0 0
Nonaccrual loans that are current 2 2
Commercial real estate:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 13,611 13,477
90+ days past due 0 3
Nonaccrual loans that are current 60 59
Commercial real estate: | Term    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 11,186 10,703
90+ days past due 0 3
Nonaccrual loans that are current 60 59
Commercial real estate: | Construction and land development    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 2,425 2,774
90+ days past due 0 0
Consumer:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 15,576 14,968
90+ days past due 1 1
Nonaccrual loans that are current 89 80
Consumer: | 1-4 family residential    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 10,431 9,939
90+ days past due 0 0
Nonaccrual loans that are current 58 49
Consumer: | Home equity credit line    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 3,784 3,641
90+ days past due 0 0
Nonaccrual loans that are current 30 30
Consumer: | Construction and other consumer real estate    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 743 810
90+ days past due 0 0
Consumer: | Bankcard and other revolving plans    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 496 457
90+ days past due 1 1
Nonaccrual loans that are current 1 1
Consumer: | Other    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 122 121
90+ days past due 0 0
Current    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 60,623 59,221
Current | Commercial:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 31,549 30,891
Current | Commercial: | Commercial and industrial    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 17,458 16,857
Current | Commercial: | Owner-occupied    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 9,350 9,309
Current | Commercial: | Municipal    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 4,376 4,348
Current | Commercial: | Leasing    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 365 377
Current | Commercial real estate:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 13,575 13,441
Current | Commercial real estate: | Term    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 11,151 10,667
Current | Commercial real estate: | Construction and land development    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 2,424 2,774
Current | Consumer:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 15,499 14,889
Current | Consumer: | 1-4 family residential    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 10,382 9,896
Current | Consumer: | Home equity credit line    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 3,762 3,609
Current | Consumer: | Construction and other consumer real estate    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 742 810
Current | Consumer: | Bankcard and other revolving plans    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 492 453
Current | Consumer: | Other    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 121 121
Total past due    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 210 189
Total past due | Commercial:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 97 74
Total past due | Commercial: | Commercial and industrial    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 68 34
Total past due | Commercial: | Owner-occupied    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 27 24
Total past due | Commercial: | Municipal    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 0 16
Total past due | Commercial: | Leasing    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 2 0
Total past due | Commercial real estate:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 36 36
Total past due | Commercial real estate: | Term    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 35 36
Total past due | Commercial real estate: | Construction and land development    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 1 0
Total past due | Consumer:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 77 79
Total past due | Consumer: | 1-4 family residential    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 49 43
Total past due | Consumer: | Home equity credit line    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 22 32
Total past due | Consumer: | Construction and other consumer real estate    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 1 0
Total past due | Consumer: | Bankcard and other revolving plans    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 4 4
Total past due | Consumer: | Other    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 1 0
30-89 days past due    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 72 76
30-89 days past due | Commercial:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 39 36
30-89 days past due | Commercial: | Commercial and industrial    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 32 20
30-89 days past due | Commercial: | Owner-occupied    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 6 10
30-89 days past due | Commercial: | Municipal    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 0 6
30-89 days past due | Commercial: | Leasing    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 1 0
30-89 days past due | Commercial real estate:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 4 2
30-89 days past due | Commercial real estate: | Term    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 3 2
30-89 days past due | Commercial real estate: | Construction and land development    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 1 0
30-89 days past due | Consumer:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 29 38
30-89 days past due | Consumer: | 1-4 family residential    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 12 16
30-89 days past due | Consumer: | Home equity credit line    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 12 20
30-89 days past due | Consumer: | Construction and other consumer real estate    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 1 0
30-89 days past due | Consumer: | Bankcard and other revolving plans    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 3 2
30-89 days past due | Consumer: | Other    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 1 0
90+ days past due    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 138 113
90+ days past due | Commercial:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 58 38
90+ days past due | Commercial: | Commercial and industrial    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 36 14
90+ days past due | Commercial: | Owner-occupied    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 21 14
90+ days past due | Commercial: | Municipal    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 0 10
90+ days past due | Commercial: | Leasing    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 1 0
90+ days past due | Commercial real estate:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 32 34
90+ days past due | Commercial real estate: | Term    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 32 34
90+ days past due | Commercial real estate: | Construction and land development    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 0 0
90+ days past due | Consumer:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 48 41
90+ days past due | Consumer: | 1-4 family residential    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 37 27
90+ days past due | Consumer: | Home equity credit line    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 10 12
90+ days past due | Consumer: | Construction and other consumer real estate    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 0 0
90+ days past due | Consumer: | Bankcard and other revolving plans    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 1 2
90+ days past due | Consumer: | Other    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total loans 0 0
Nonaccrual loans that are current    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Nonaccrual loans that are current 160 183
Nonaccrual loans that are current | Commercial:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Nonaccrual loans that are current 97 127
Nonaccrual loans that are current | Commercial: | Commercial and industrial    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Nonaccrual loans that are current 75 98
Nonaccrual loans that are current | Commercial: | Owner-occupied    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Nonaccrual loans that are current 17 16
Nonaccrual loans that are current | Commercial: | Municipal    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Nonaccrual loans that are current 5 11
Nonaccrual loans that are current | Commercial: | Leasing    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Nonaccrual loans that are current 0 2
Nonaccrual loans that are current | Commercial real estate:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Nonaccrual loans that are current 27 28
Nonaccrual loans that are current | Commercial real estate: | Term    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Nonaccrual loans that are current 27 28
Nonaccrual loans that are current | Commercial real estate: | Construction and land development    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Nonaccrual loans that are current 0 0
Nonaccrual loans that are current | Consumer:    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Nonaccrual loans that are current 36 28
Nonaccrual loans that are current | Consumer: | 1-4 family residential    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Nonaccrual loans that are current 20 15
Nonaccrual loans that are current | Consumer: | Home equity credit line    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Nonaccrual loans that are current 16 13
Nonaccrual loans that are current | Consumer: | Construction and other consumer real estate    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Nonaccrual loans that are current 0 0
Nonaccrual loans that are current | Consumer: | Bankcard and other revolving plans    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Nonaccrual loans that are current 0 0
Nonaccrual loans that are current | Consumer: | Other    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Nonaccrual loans that are current $ 0 $ 0