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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Narrative) (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Derivative Instruments, Gain (Loss) [Line Items] |  |
Derivative liability | $ 257 | $ 350
Total debt securities | 10,379 | 10,601
Net credit valuation adjustment reducing fair value | 3 |
Net credit valuation adjustment reducing fair value |  | 9
U.S. Treasury, agencies, and corporations |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Total debt securities | 1,401 | $ 781
Asset Pledged as Collateral | Securities Sold under Agreements to Repurchase |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Cash | 24 |
Asset Pledged as Collateral | Securities Sold under Agreements to Repurchase | U.S. Treasury, agencies, and corporations |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Total debt securities | $ 200 |

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