Note 6 - Pension, Postretirement and Postemployment Defined Benefit Plans (Tables)

6 Months Ended

Mar. 27, 2022

Notes Tables

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

PENSION PLANS	Three months ended						Six months ended
	March 27,			March 28,			March 27,			March 28,
(Thousands of Dollars)	2022			2021			2022			2021
Service cost for benefits earned during the period		287			633			743			1,266
Interest cost on projected benefit obligation		2,001			1,787			3,938			3,574
Expected return on plan assets		(4,535	)		(4,672	)		(9,071	)		(9,344	)
Amortization of net loss		(687	)		1,005			(1,946	)		2,009
Amortization of prior service benefit		212			(1	)		212			(1	)
Curtailment gain		—			—			(1,027	)		—
Pension benefit		(2,722	)		(1,248	)		(7,151	)		(2,496	)

POSTRETIREMENT MEDICAL PLANS	Three months ended						Six months ended
	March 27,			March 28,			March 27,			March 28,
(Thousands of Dollars)	2022			2021			2022			2021
Service cost for benefits earned during the period		27			240			54			450
Interest cost on projected benefit obligation		85			239			170			362
Expected return on plan assets		(263	)		(252	)		(526	)		(504	)
Amortization of net gain		(249	)		(172	)		(498	)		(344	)
Amortization of prior service benefit		(162	)		(162	)		(324	)		(323	)
Curtailment gain		—			—			—			(23,830	)
Postretirement medical benefit		(562	)		(107	)		(1,124	)		(24,189	)