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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Additional Information (Details) - USD ($) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Derivative [Line Items] |  |  |
Notional amount | $ 16,073,000,000 |  | $ 15,924,000,000
Additional amount in excess of posted collateral required in case of breached agreements | $ 100,000 |  | 200,000
Interest rate contracts |  |  |
Derivative [Line Items] |  |  |
Maximum length of time hedged in interest rate cash flow hedge | 4 years 6 months |  |
Period to reclassification of cash flow hedge gain loss | 12 months |  |
Derivative loss to be reclassified within twelve months | $ 2,000,000.0 |  |
Derivative loss to be reclassified within twelve months, net of tax | 1,600,000 |  |
Derivative gain or losses excluded from assessment of hedge effectiveness | 0 |  |
Amount of gain (loss) reclassified from AOCI into net income | 0 | $ 0 |
Credit risk contracts |  |  |
Derivative [Line Items] |  |  |
Notional amount | 574,000,000 |  |
Maximum exposure under credit risk agreement assuming customer default | 0 |  | 0
Credit risk derivatives, purchased at fair value | 200,000 |  | 100,000
Credit risk derivatives, sold at fair value | $ 100,000 |  | $ 0
Credit risk contracts | Minimum |  |  |
Derivative [Line Items] |  |  |
Risk participation agreements, term | 2 months |  |
Credit risk contracts | Maximum |  |  |
Derivative [Line Items] |  |  |
Risk participation agreements, term | 16 years |  |

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- Definition The aggregate fair value of additional assets that would be required to be posted as collateral for derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 185 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-185 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4H -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4H + Details
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- Definition Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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