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RETIREMENT PLANS - Rate Assumptions (Details)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Pension benefits      
Weighted-average rates assumed in the actuarial calculations for the pension plan      
Discount rate for benefit obligation 5.70% 4.30% 5.40%
Discount rate for benefit cost 5.20% 5.40% 2.90%
Expected long-term return on plan assets 5.30% 5.30% 5.20%
Postretirement benefits      
Weighted-average rates assumed in the actuarial calculations for the pension plan      
Discount rate for benefit obligation 5.60% 5.20% 5.40%
Discount rate for benefit cost 5.20% 5.20% 2.80%
Postretirement benefits | Medical benefit plan      
Health care cost trend rates      
Trend rate 1.00%    
Ultimate rate 4.00%    
Postretirement benefits | Dental benefit plan      
Health care cost trend rates      
Trend rate 4.00%