Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 24, 2019	Nov. 25, 2018	Nov. 24, 2019	Nov. 25, 2018
Statement of Comprehensive Income [Abstract]
Net earnings	$ 24.7	$ 115.6	$ 195.3	$ 281.8
Other comprehensive income (loss):
Foreign currency adjustment	5.5	0.2	5.5	0.6
Change in fair value of derivatives and amortization of unrecognized gains and losses on derivatives, net of taxes of $0.1, $(0.1), $(0.1) and $(0.1), respectively	(2.7)	(2.3)	(5.6)	6.3
Net unamortized gain (loss) arising during the period, including amortization of unrecognized net actuarial (loss) gain, net of taxes of $32.5, $0.0, $32.5 and $0.0, respectively, related to pension and other post-employment benefits	97.7	(0.2)	97.8	(0.4)
Other comprehensive income (loss)	100.5	(2.3)	97.7	6.5
Total comprehensive income	$ 125.2	$ 113.3	$ 293.0	$ 288.3