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Pension, Postretirement and Postemployment Defined Benefit Plans (Tables)
3 Months Ended
Dec. 29, 2024
Retirement Benefits [Abstract]  
Schedule of Net Periodic Pension and Postretirement Cost (Benefit) Components
The net periodic pension and postretirement cost (benefit) components for our plans are as follows:
PENSION PLANSThree months ended
(Thousands of Dollars)December 29,
2024
December 24,
2023
Service cost for benefits earned during the period
Interest cost on projected benefit obligation2,034 2,515 
Expected return on plan assets(2,319)(2,453)
Amortization of net (gain) loss— (2)
Amortization of prior service benefit212 212 
Settlement gain— (2,409)
Net periodic pension (benefit) cost(72)(2,136)
POSTRETIREMENT MEDICAL PLANSThree months ended
(Thousands of Dollars)December 29,
2024
December 24,
2023
Service cost for benefits earned during the period13 
Interest cost on projected benefit obligation108 149 
Expected return on plan assets(410)(320)
Amortization of net gain(292)(308)
Amortization of prior service benefit(71)(94)
Curtailment gain— (1,184)
Net periodic postretirement benefit(664)(1,744)