COMMITMENTS, CREDIT RISK AND CONTINGENCIES - Schedule of Off-Balance Sheet Credit Risk Information (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Standby letters of credit | ||
| Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
| Extended credit and standby letters of credit | $ 280 | $ 263 |
| Commitments to extend credit | ||
| Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] | ||
| Extended credit and standby letters of credit | $ 15,243 | $ 14,806 |