Retirement Plans (Tables)

6 Months Ended

Nov. 29, 2015

Compensation and Retirement Disclosure [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 29, 2015			November 23, 2014			November 29, 2015			November 23, 2014
Service cost	$	—		$	0.3		$	—		$	0.5
Interest cost	2.6			2.9			5.3			5.0
Expected return on plan assets	(3.6		)	(4.5		)	(7.2		)	(7.6		)
Recognized net actuarial loss	0.8			0.8			1.4			1.3
Net periodic benefit (credit) cost	$	(0.2	)	$	(0.5	)	$	(0.5	)	$	(0.8	)

	Postretirement Benefit Plan
	Three Months Ended					Six Months Ended
(in millions)	November 29, 2015			November 23, 2014		November 29, 2015			November 23, 2014
Service cost	$	0.1		$	0.1	$	0.1		$	0.3
Interest cost	0.2			0.4		0.4			0.8
Amortization of unrecognized prior service credit	(1.2		)	—		(2.4		)	—
Recognized net actuarial loss	0.3			0.2		0.6			0.3
Net periodic benefit (credit) cost	$	(0.6	)	$	0.7	$	(1.3	)	$	1.4