Retirement Plans (Tables)

6 Months Ended

Nov. 24, 2019

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 24, 2019			November 25, 2018			November 24, 2019			November 25, 2018
Interest cost	$	1.6		$	2.2		$	3.2		$	4.6
Expected return on plan assets	(2.0		)	(2.8		)	(4.0		)	(5.6		)
Pension settlement expense	147.1			—			147.1			—
Recognized net actuarial loss	0.8			0.7			1.7			1.3
Net periodic benefit cost	$	147.5		$	0.1		$	148.0		$	0.3

	Postretirement Benefit Plan
	Three Months Ended						Six Months Ended
(in millions)	November 24, 2019			November 25, 2018			November 24, 2019			November 25, 2018
Interest cost	$	0.1		$	0.2		$	0.3		$	0.4
Amortization of unrecognized prior service credit	(1.1		)	(1.2		)	(2.3		)	(2.4		)
Recognized net actuarial loss	0.3			0.4			0.7			0.8
Net periodic benefit credit	$	(0.7	)	$	(0.6	)	$	(1.3	)	$	(1.2	)