v3.26.1
PENSION, POSTRETIREMENT AND POSTEMPLOYMENT DEFINED BENEFIT PLANS (Tables)
 9 Months Ended
Jun. 28, 2026
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 PLANThree months ended Nine months ended
(Thousands of Dollars)June 28,
2026		June 29,
2025		June 28,
2026		June 29,
2025
Service cost for benefits earned during the period113 3 
Interest cost on projected benefit obligation1,9772,0345,931 6,103 
Expected return on plan assets(2,467)(2,319)(7,400)(6,956)
Amortization of prior service benefit212212636 636 
Net periodic pension benefit(277)(72)(830)(214)
POSTRETIREMENT MEDICAL PLANSThree months ended Nine months ended
(Thousands of Dollars)June 28,
2026		June 29,
2025		June 28,
2026		June 29,
2025
Service cost for benefits earned during the period— 1 — 2 
Interest cost on projected benefit obligation83 108 250 325 
Expected return on plan assets(391)(410)(1,174)(1,231)
Amortization of net gain(245)(292)(733)(876)
Amortization of prior service benefit(71)(71)(214)(214)
Settlement gain(2,330)— (2,330)— 
Net periodic postretirement benefit(2,954)(664)(4,201)(1,994)