v3.25.4
LOANS, LEASES, AND ALLOWANCE FOR CREDIT LOSSES (Summary of Selected Information on Modified Loans) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 663 $ 470
Percentage of total loans 1.10% 0.80%
Unfunded lending commitments $ 33 $ 11
Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 19
Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 622 257
Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 3
Payment deferral    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 4 1
Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 37 190
Extended Maturity and Interest Rate Reduction    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 30 185
Commercial    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 213 $ 128
Percentage of total loans 0.70% 0.40%
Commercial | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 0 $ 19
Commercial | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 209 60
Commercial | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 0
Commercial | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 1
Commercial | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 4 48
Commercial | Commercial and industrial    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 183 $ 105
Percentage of total loans 1.00% 0.60%
Commercial | Commercial and industrial | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 0 $ 19
Commercial | Commercial and industrial | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 179 37
Commercial | Commercial and industrial | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 0
Commercial | Commercial and industrial | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 1
Commercial | Commercial and industrial | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 4 48
Commercial | Owner-occupied    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 30 $ 12
Percentage of total loans 0.30% 0.10%
Commercial | Owner-occupied | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 0 $ 0
Commercial | Owner-occupied | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 30 12
Commercial | Owner-occupied | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 0
Commercial | Owner-occupied | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 0
Commercial | Owner-occupied | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 0
Commercial | Municipal    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty   $ 11
Percentage of total loans   0.30%
Commercial | Municipal | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty   $ 0
Commercial | Municipal | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty   11
Commercial | Municipal | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty   0
Commercial | Municipal | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty   0
Commercial | Municipal | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty   0
Commercial real estate    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 441 $ 332
Percentage of total loans 3.30% 2.50%
Commercial real estate | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 0 $ 0
Commercial real estate | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 412 197
Commercial real estate | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 0
Commercial real estate | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 4 0
Commercial real estate | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 25 135
Commercial real estate | Term    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 414 $ 289
Percentage of total loans 3.70% 2.70%
Commercial real estate | Term | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 0 $ 0
Commercial real estate | Term | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 385 179
Commercial real estate | Term | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 0
Commercial real estate | Term | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 4 0
Commercial real estate | Term | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 25 110
Commercial real estate | Construction and land development    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 27 $ 43
Percentage of total loans 1.20% 1.60%
Commercial real estate | Construction and land development | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 0 $ 0
Commercial real estate | Construction and land development | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 27 18
Commercial real estate | Construction and land development | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 0
Commercial real estate | Construction and land development | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 0
Commercial real estate | Construction and land development | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 25
Consumer    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 9 $ 10
Percentage of total loans 0.10% 0.10%
Consumer | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 0 $ 0
Consumer | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 1 0
Consumer | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 3
Consumer | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 0
Consumer | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 8 7
Consumer | 1-4 family residential    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 7 $ 7
Percentage of total loans 0.10% 0.10%
Consumer | 1-4 family residential | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 0 $ 0
Consumer | 1-4 family residential | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 0
Consumer | 1-4 family residential | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 2
Consumer | 1-4 family residential | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 0
Consumer | 1-4 family residential | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 7 5
Consumer | Home equity credit line    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 1 $ 2
Percentage of total loans 0.00% 0.10%
Consumer | Home equity credit line | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 0 $ 0
Consumer | Home equity credit line | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 0
Consumer | Home equity credit line | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 1
Consumer | Home equity credit line | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 0
Consumer | Home equity credit line | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 1 1
Consumer | Bankcard and other revolving plans    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 1 $ 1
Percentage of total loans 0.20% 0.20%
Consumer | Bankcard and other revolving plans | Interest rate reduction    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 0 $ 0
Consumer | Bankcard and other revolving plans | Maturity or term extension    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 1 0
Consumer | Bankcard and other revolving plans | Principal forgiveness    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 0
Consumer | Bankcard and other revolving plans | Payment deferral    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty 0 0
Consumer | Bankcard and other revolving plans | Multiple modification types    
Financing Receivable, Modifications [Line Items]    
Loan modifications to borrowers experiencing financial difficulty $ 0 $ 1