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EMPLOYEE BENEFIT PLANS (Target Asset Allocation Percentages) (Details)
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation   100.00% 100.00%
Pension Plan | Global equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation   26.00% 26.00%
Pension Plan | Absolute return      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation   1.00% 1.00%
Pension Plan | Real assets      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation   8.00% 8.00%
Pension Plan | Fixed-income securities      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation   65.00% 65.00%
PBOP Plans      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation   100.00% 100.00%
PBOP Plans | Global equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation   29.00% 28.00%
PBOP Plans | Absolute return      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation   0.00% 1.00%
PBOP Plans | Real assets      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation   3.00% 3.00%
PBOP Plans | Fixed-income securities      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation   68.00% 68.00%
Forecast | Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation 100.00%    
Forecast | Pension Plan | Global equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation 26.00%    
Forecast | Pension Plan | Absolute return      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation 1.00%    
Forecast | Pension Plan | Real assets      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation 8.00%    
Forecast | Pension Plan | Fixed-income securities      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation 65.00%    
Forecast | PBOP Plans      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation 100.00%    
Forecast | PBOP Plans | Global equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation 30.00%    
Forecast | PBOP Plans | Absolute return      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation 0.00%    
Forecast | PBOP Plans | Real assets      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation 3.00%    
Forecast | PBOP Plans | Fixed-income securities      
Defined Benefit Plan Disclosure [Line Items]      
Total target asset allocation 67.00%