v3.26.1
LOANS AND LEASES - Schedule of Amortized Cost of Loans Modified (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loan modifications $ 1 $ 1
Total $ 465 $ 262
Percent of Total Loan Class 0.31% 0.19%
Term Extension    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 274 $ 115
Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 107 40
Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 17 0
Term Extension and Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 34 3
Term Extension and Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 33 104
Commercial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 459 $ 254
Percent of Total Loan Class 0.38% 0.35%
Commercial | Term Extension    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 269 $ 111
Commercial | Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 107 40
Commercial | Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 16 0
Commercial | Term Extension and Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 34 2
Commercial | Term Extension and Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 33 101
Commercial | Commercial and industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 324 $ 97
Percent of Total Loan Class 0.71% 1.75%
Commercial | Commercial and industrial | Term Extension    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 228 $ 58
Commercial | Commercial and industrial | Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 70 17
Commercial | Commercial and industrial | Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 3 0
Commercial | Commercial and industrial | Term Extension and Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 1 2
Commercial | Commercial and industrial | Term Extension and Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 22 20
Commercial | Owner occupied commercial mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 65 $ 28
Percent of Total Loan Class 0.38% 0.17%
Commercial | Owner occupied commercial mortgage | Term Extension    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 26 $ 12
Commercial | Owner occupied commercial mortgage | Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 2
Commercial | Owner occupied commercial mortgage | Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 13 0
Commercial | Owner occupied commercial mortgage | Term Extension and Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 18 0
Commercial | Owner occupied commercial mortgage | Term Extension and Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 8 14
Commercial | Investor dependent    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 44 $ 25
Percent of Total Loan Class 1.64% 0.08%
Commercial | Investor dependent | Term Extension    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 7 $ 4
Commercial | Investor dependent | Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 37 21
Commercial | Investor dependent | Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Commercial | Investor dependent | Term Extension and Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Commercial | Investor dependent | Term Extension and Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Commercial | Commercial real estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 26 $ 104
Percent of Total Loan Class 0.11% 5.14%
Commercial | Commercial real estate | Term Extension    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 8 $ 37
Commercial | Commercial real estate | Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Commercial | Commercial real estate | Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Commercial | Commercial real estate | Term Extension and Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 15 0
Commercial | Commercial real estate | Term Extension and Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 3 67
Consumer    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 6 $ 8
Percent of Total Loan Class 0.02% 0.03%
Consumer | Term Extension    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 5 $ 4
Consumer | Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Consumer | Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 1 0
Consumer | Term Extension and Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 1
Consumer | Term Extension and Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 3
Consumer | Residential mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 5 $ 8
Percent of Total Loan Class 0.02% 0.04%
Consumer | Residential mortgage | Term Extension    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 4 $ 4
Consumer | Residential mortgage | Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Consumer | Residential mortgage | Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 1 0
Consumer | Residential mortgage | Term Extension and Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 1
Consumer | Residential mortgage | Term Extension and Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 3
Consumer | Revolving mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 1 $ 0
Percent of Total Loan Class 0.02% 0.03%
Consumer | Revolving mortgage | Term Extension    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 1 $ 0
Consumer | Revolving mortgage | Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Consumer | Revolving mortgage | Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Consumer | Revolving mortgage | Term Extension and Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Consumer | Revolving mortgage | Term Extension and Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Consumer | Auto    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 0 $ 0
Percent of Total Loan Class 0.01% 0.01%
Consumer | Auto | Term Extension    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 0 $ 0
Consumer | Auto | Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Consumer | Auto | Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Consumer | Auto | Term Extension and Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Consumer | Auto | Term Extension and Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Consumer | Other consumer    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 0 $ 0
Percent of Total Loan Class 0.00% 0.01%
Consumer | Other consumer | Term Extension    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 0 $ 0
Consumer | Other consumer | Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Consumer | Other consumer | Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Consumer | Other consumer | Term Extension and Interest Rate Reduction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total 0 0
Consumer | Other consumer | Term Extension and Payment Delay    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total $ 0 $ 0