v3.25.1
Pension, Postretirement and Postemployment Defined Benefit Plans (Tables)
 6 Months Ended
Mar. 30, 2025
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 Six months ended
(Thousands of Dollars)March 30,
2025		March 24,
2024		March 30,
2025		March 24,
2024
Service cost for benefits earned during the period1 1 2 2 
Interest cost on projected benefit obligation2,034 2,253 4,068 4,768 
Expected return on plan assets(2,319)(2,310)(4,637)(4,763)
Amortization of net (gain) loss— (1)— (3)
Amortization of prior service benefit212 212 424 424 
Settlement gain— — — (2,409)
Net periodic pension (benefit) cost(72)155 (143)(1,981)
POSTRETIREMENT MEDICAL PLANSThree months ended Six months ended
(Thousands of Dollars)March 30,
2025		March 24,
2024		March 30,
2025		March 24,
2024
Service cost for benefits earned during the period1 13 2 25 
Interest cost on projected benefit obligation108 149 217 298 
Expected return on plan assets(410)(320)(821)(639)
Amortization of net gain(292)(308)(584)(617)
Amortization of prior service benefit(71)(94)(142)(188)
Curtailment gain— — — (1,184)
Net periodic postretirement benefit(664)(560)(1,328)(2,305)