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INCOME TAXES - Schedule of Deferred Tax Assets and Liabilities from Tax Effects of Temporary Differences (Details) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Deferred tax assets: |  |
Allowance for credit losses | $ 98 | $ 95
Discounts on loans acquired in a business combination | 6 | 8
Net operating loss/tax credit carryforwards | 40 | 44
Deferred compensation | 19 | 17
Securities impairment | 2 | 2
Lease liability | 66 | 68
Net unrealized securities losses | 10 | 39
Other | 20 | 22
Total | 261 | 295
Valuation allowance | (31) | (34)
Total deferred tax assets | 230 | 261
Total deferred tax assets |  |
Loan costs | (16) | (13)
Depreciation | (29) | (16)
Prepaid expenses | (2) | (2)
Amortizable intangibles | (13) | (16)
Pension and other defined benefit plans | (17) | (13)
Equipment financing | (98) | (68)
Mortgage servicing rights | (16) | (16)
Lease ROU asset | (55) | (58)
Other | (1) | (1)
Total deferred tax liabilities | (247) | (203)
Total deferred tax liabilities | $ (17) |
Net deferred tax assets (liabilities) |  | $ 58

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