Retirement Plans (Tables)

6 Months Ended

Nov. 23, 2014

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 23, 2014			November 24, 2013			November 23, 2014			November 24, 2013
Service cost	$	0.3		$	1.1		$	0.5		$	2.2
Interest cost	2.9			2.6			5.0			5.1
Expected return on plan assets	(4.5		)	(4.3		)	(7.6		)	(8.6		)
Recognized net actuarial loss	0.8			2.3			1.3			4.6
Net periodic benefit cost	$	(0.5	)	$	1.7		$	(0.8	)	$	3.3

	Postretirement Benefit Plan
	Three Months Ended				Six Months Ended
(in millions)	November 23, 2014		November 24, 2013		November 23, 2014		November 24, 2013
Service cost	$	0.1	$	0.2	$	0.3	$	0.4
Interest cost	0.4		0.3		0.8		0.6
Recognized net actuarial loss	0.2		—		0.3		—
Net periodic benefit cost	$	0.7	$	0.5	$	1.4	$	1.0