PENSION AND POSTRETIREMENT BENEFITS (Tables)

9 Months Ended

Feb. 23, 2025

PENSION AND POSTRETIREMENT BENEFITS

Schedule of Defined Benefit Plans Disclosures

	Pension Plans
	Thirteen Weeks Ended				Thirty-Nine Weeks Ended
	February 23, 2025		February 25, 2024		February 23, 2025		February 25, 2024
Service cost	$	1.4	$	1.5	$	4.1	$	4.4
Interest cost		34.4		36.1		101.8		109.5
Expected return on plan assets		(37.0)		(35.3)		(109.4)		(106.9)
Amortization of prior service cost		0.4		0.4		1.2		1.2
Settlement loss		—		1.1		—		1.1
Pension cost (benefit) — Company plans		(0.8)		3.8		(2.3)		9.3
Pension cost (benefit) — multi-employer plans		2.1		2.1		7.3		6.9
Total pension cost (benefit)	$	1.3	$	5.9	$	5.0	$	16.2

	Postretirement Plans
	Thirteen Weeks Ended				Thirty-Nine Weeks Ended
	February 23, 2025		February 25, 2024		February 23, 2025		February 25, 2024
Service cost	$	—	$	—	$	0.1	$	0.1
Interest cost		0.6		0.7		1.8		2.0
Amortization of prior service cost (benefit)		(0.4)		(0.4)		(1.3)		(1.2)
Recognized net actuarial gain		(1.1)		(1.2)		(3.4)		(3.6)
Total postretirement cost (benefit)	$	(0.9)	$	(0.9)	$	(2.8)	$	(2.7)