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EMPLOYEE BENEFITS - Schedule of Actuarial Assumptions (Details)
Dec. 31, 2023
Dec. 31, 2022
Pension and SERP | Minimum    
Defined Benefit Plan Disclosure [Line Items]    
Discount Rate 4.90% 5.10%
Compensation/Progression Rate 3.50% 3.50%
Pension and SERP | Maximum    
Defined Benefit Plan Disclosure [Line Items]    
Discount Rate 5.00% 5.20%
Compensation/Progression Rate 4.00% 4.00%
PBOP | Minimum    
Defined Benefit Plan Disclosure [Line Items]    
Discount Rate 5.00% 5.20%
PBOP | Maximum    
Defined Benefit Plan Disclosure [Line Items]    
Discount Rate 5.20%