Note 11 - Pension and Postretirement Benefits (Tables)

6 Months Ended

Nov. 27, 2022

Notes Tables

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	Pension Plans
	Thirteen Weeks Ended						Twenty-Six Weeks Ended
	November 27, 2022			November 28, 2021			November 27, 2022			November 28, 2021
Service cost	$	1.7		$	2.0		$	3.3		$	4.7
Interest cost		31.0			20.8			62.0			41.6
Expected return on plan assets		(36.4	)		(36.3	)		(72.9	)		(72.7	)
Amortization of prior service cost		0.3			0.4			0.7			0.9
Pension cost (benefit) — Company plans		(3.4	)		(13.1	)		(6.9	)		(25.5	)
Pension cost (benefit) — multi-employer plans		2.8			2.4			5.0			4.3
Total pension cost (benefit)	$	(0.6	)	$	(10.7	)	$	(1.9	)	$	(21.2	)

	Postretirement Plans
	Thirteen Weeks Ended						Twenty-Six Weeks Ended
	November 27, 2022			November 28, 2021			November 27, 2022			November 28, 2021
Service cost	$	0.1		$	0.1		$	0.1		$	0.1
Interest cost		0.6			0.4			1.1			0.7
Amortization of prior service cost (benefit)		(0.5	)		(0.4	)		(0.9	)		(0.9	)
Recognized net actuarial gain		(1.1	)		(1.0	)		(2.2	)		(1.8	)
Total postretirement cost (benefit)	$	(0.9	)	$	(0.9	)	$	(1.9	)	$	(1.9	)