Retirement Plans (Tables)

3 Months Ended

Aug. 26, 2018

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost

Components of net periodic benefit cost are as follows:

	Defined Benefit Plans
	Three Months Ended
(in millions)	August 26, 2018			August 27, 2017
Interest cost	$	2.4		$	2.1
Expected return on plan assets	(2.8		)	(3.0		)
Recognized net actuarial loss	0.6			0.7
Net periodic benefit (credit) cost	$	0.2		$	(0.2	)

	Postretirement Benefit Plan
	Three Months Ended
(in millions)	August 26, 2018			August 27, 2017
Interest cost	$	0.2		$	0.2
Amortization of unrecognized prior service credit	(1.2		)	(1.2		)
Recognized net actuarial loss	0.4			0.4
Net periodic benefit (credit) cost	$	(0.6	)	$	(0.6	)