v3.26.1
PENSION, POSTRETIREMENT AND POSTEMPLOYMENT DEFINED BENEFIT PLANS (Tables)
 6 Months Ended
Mar. 29, 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 Six months ended
(Thousands of Dollars)March 29,
2026		March 30,
2025		March 29,
2026		March 30,
2025
Service cost for benefits earned during the period1 1 2 2 
Interest cost on projected benefit obligation1,977 2,034 3,954 4,068 
Expected return on plan assets(2,467)(2,319)(4,934)(4,637)
Amortization of prior service benefit212 212 424 424 
Net periodic pension benefit(277)(72)(554)(143)
POSTRETIREMENT MEDICAL PLANSThree months ended Six months ended
(Thousands of Dollars)March 29,
2026		March 30,
2025		March 29,
2026		March 30,
2025
Service cost for benefits earned during the period— 1 — 2 
Interest cost on projected benefit obligation83 108 166 217 
Expected return on plan assets(391)(410)(782)(821)
Amortization of net gain(245)(292)(490)(584)
Amortization of prior service benefit(71)(71)(142)(142)
Net periodic postretirement benefit(624)(664)(1,248)(1,328)