v3.25.4
LOANS, LEASES, AND ALLOWANCE FOR CREDIT LOSSES (Summary of Nonaccrual Loans) (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Financing Receivable, Allowance for Credit Losses [Line Items]    
Amortized cost basis with no allowance $ 95 $ 112
Amortized cost basis with allowance 220 185
Total amortized cost basis 315 297
Related allowance 36 37
Commercial    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Amortized cost basis with no allowance 77 68
Amortized cost basis with allowance 69 90
Total amortized cost basis 146 158
Related allowance 20 23
Commercial | Commercial and industrial    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Amortized cost basis with no allowance 44 45
Amortized cost basis with allowance 46 69
Total amortized cost basis 90 114
Related allowance 18 19
Commercial | Owner-occupied    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Amortized cost basis with no allowance 33 18
Amortized cost basis with allowance 18 13
Total amortized cost basis 51 31
Related allowance 1 1
Commercial | Municipal    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Amortized cost basis with no allowance 0 5
Amortized cost basis with allowance 2 6
Total amortized cost basis 2 11
Related allowance 0 2
Commercial | Leasing    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Amortized cost basis with no allowance 0 0
Amortized cost basis with allowance 3 2
Total amortized cost basis 3 2
Related allowance 1 1
Commercial real estate    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Amortized cost basis with no allowance 4 27
Amortized cost basis with allowance 69 32
Total amortized cost basis 73 59
Related allowance 2 4
Commercial real estate | Term    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Amortized cost basis with no allowance 4 27
Amortized cost basis with allowance 68 32
Total amortized cost basis 72 59
Related allowance 2 4
Commercial real estate | Construction and land development    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Amortized cost basis with no allowance 0  
Amortized cost basis with allowance 1  
Total amortized cost basis 1  
Related allowance 0  
Consumer    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Amortized cost basis with no allowance 14 17
Amortized cost basis with allowance 82 63
Total amortized cost basis 96 80
Related allowance 14 10
Consumer | 1-4 family residential    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Amortized cost basis with no allowance 14 12
Amortized cost basis with allowance 51 37
Total amortized cost basis 65 49
Related allowance 5 4
Consumer | Home equity credit line    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Amortized cost basis with no allowance 0 5
Amortized cost basis with allowance 30 25
Total amortized cost basis 30 30
Related allowance 8 5
Consumer | Bankcard and other revolving plans    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Amortized cost basis with no allowance 0 0
Amortized cost basis with allowance 1 1
Total amortized cost basis 1 1
Related allowance $ 1 $ 1