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PENSION AND OTHER POSTRETIREMENT BENEFITS - Schedule of Economic Assumptions and Impact of Change in Discount Rate on Benefit Obligation (Details)
 9 Months Ended
Sep. 24, 2023
Sep. 25, 2022
Dec. 25, 2022
Pension Benefits      
Assumptions used to measure benefit obligation at end of period:      
Discount rate 5.53%   5.04%
Assumptions used to measure net pension and other postretirement cost:      
Discount rate 5.09% 2.40%  
Expected return on plan assets 4.98% 3.31%  
Other Benefits      
Assumptions used to measure benefit obligation at end of period:      
Discount rate 5.67%   5.16%
Assumptions used to measure net pension and other postretirement cost:      
Discount rate 5.16% 2.38%