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LOANS AND ALLOWANCE FOR CREDIT LOSSES ON LOANS - MODIFICATIONS (Details) $ in Millions | 3 Months Ended | 9 Months Ended
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Sep. 30, 2025 loan | Jun. 30, 2025 USD ($) loan | Sep. 30, 2024 loan | Sep. 30, 2025 loan | Sep. 30, 2024 loan
LOANS AND ALLOWANCE FOR CREDIT LOSSES ON LOANS |  |  |  |  |
Number of Loans |  | 1 |  |  |
Recorded Investment | $ |  | $ 4 |  |  |
Number of Loans with payment default | 0 |  | 0 | 0 | 0

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