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CASH FLOW INFORMATION - Summary of Supplemental Cash Flow Information (Details) - USD ($) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2025 | Sep. 30, 2024
Supplemental Cash Flow Elements [Abstract] |  |
Interest paid on deposits and other borrowings | $ 708 | $ 720
Income taxes paid | 32 | 42
Transfers of loans to other real estate owned | 2 | 1
Loans transferred to held for sale from portfolio | 32 | 431
Loans transferred to portfolio from held for sale | $ 27 | $ 14

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