Note 13 - Pension and Postretirement Benefits (Tables)

6 Months Ended

Nov. 26, 2023

Notes Tables

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	Pension Plans
	Thirteen Weeks Ended						Twenty-Six Weeks Ended
	November 26, 2023			November 27, 2022			November 26, 2023			November 27, 2022
Service cost	$	1.4		$	1.7		$	2.9		$	3.3
Interest cost		36.7			31.0			73.4			62.0
Expected return on plan assets		(35.8	)		(36.4	)		(71.6	)		(72.9	)
Amortization of prior service cost		0.4			0.3			0.8			0.7
Pension cost (benefit) — Company plans		2.7			(3.4	)		5.5			(6.9	)
Pension cost (benefit) — multi-employer plans		2.7			2.8			4.8			5.0
Total pension cost (benefit)	$	5.4		$	(0.6	)	$	10.3		$	(1.9	)

	Postretirement Plans
	Thirteen Weeks Ended						Twenty-Six Weeks Ended
	November 26, 2023			November 27, 2022			November 26, 2023			November 27, 2022
Service cost	$	0.1		$	0.1		$	0.1		$	0.1
Interest cost		0.7			0.6			1.3			1.1
Amortization of prior service cost (benefit)		(0.4	)		(0.5	)		(0.8	)		(0.9	)
Recognized net actuarial gain		(1.2	)		(1.1	)		(2.4	)		(2.2	)
Total postretirement cost (benefit)	$	(0.8	)	$	(0.9	)	$	(1.8	)	$	(1.9	)