Retirement Plans (Tables)

6 Months Ended

Nov. 26, 2017

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost

Components of net periodic benefit cost are as follows:

	Defined Benefit Plans
	Three Months Ended						Six Months Ended
(in millions)	November 26, 2017			November 27, 2016			November 26, 2017			November 27, 2016
Interest cost	$	2.2		$	2.6		$	4.3		$	5.1
Expected return on plan assets	(3.0		)	(4.1		)	(6.0		)	(8.0		)
Recognized net actuarial loss	0.7			0.8			1.4			1.6
Net periodic benefit (credit) cost	$	(0.1	)	$	(0.7	)	$	(0.3	)	$	(1.3	)

	Postretirement Benefit Plan
	Three Months Ended						Six Months Ended
(in millions)	November 26, 2017			November 27, 2016			November 26, 2017			November 27, 2016
Service cost	$	0.1		$	0.1		$	0.1		$	0.1
Interest cost	0.1			0.2			0.3			0.4
Amortization of unrecognized prior service credit	(1.2		)	(1.2		)	(2.4		)	(2.4		)
Recognized net actuarial loss	0.5			0.4			0.9			0.8
Net periodic benefit (credit) cost	$	(0.5	)	$	(0.5	)	$	(1.1	)	$	(1.1	)