Retirement Plans

6 Months Ended

Nov. 25, 2018

Retirement Benefits [Abstract]

Retirement Plans

Retirement Plans

Components of net periodic benefit cost are as follows:

	Defined Benefit Plans
	Three Months Ended						Six Months Ended
(in millions)	November 25, 2018			November 26, 2017			November 25, 2018			November 26, 2017
Interest cost	$	2.2		$	2.2		$	4.6		$	4.3
Expected return on plan assets	(2.8		)	(3.0		)	(5.6		)	(6.0		)
Recognized net actuarial loss	0.7			0.7			1.3			1.4
Net periodic benefit (credit) cost	$	0.1		$	(0.1	)	$	0.3		$	(0.3	)

	Postretirement Benefit Plan
	Three Months Ended						Six Months Ended
(in millions)	November 25, 2018			November 26, 2017			November 25, 2018			November 26, 2017
Service cost	$	—		$	0.1		$	—		$	0.1
Interest cost	0.2			0.1			0.4			0.3
Amortization of unrecognized prior service credit	(1.2		)	(1.2		)	(2.4		)	(2.4		)
Recognized net actuarial loss	0.4			0.5			0.8			0.9
Net periodic benefit (credit) cost	$	(0.6	)	$	(0.5	)	$	(1.2	)	$	(1.1	)