Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 23, 2020	Feb. 24, 2019	Feb. 23, 2020	Feb. 24, 2019
Statement of Comprehensive Income [Abstract]
Net earnings	$ 232.3	$ 223.6	$ 427.6	$ 505.4
Other comprehensive income (loss):
Foreign currency adjustment	0.0	(0.3)	5.5	0.3
Change in fair value of derivatives and amortization of unrecognized gains and losses on derivatives, net of taxes of $0.0, $(0.1), $(0.1) and $(0.1), respectively	0.7	(1.9)	(4.9)	4.4
Net unamortized gain (loss) arising during the period, including amortization of unrecognized net actuarial (loss) gain, net of taxes of $(0.1), $0.0, $32.3 and $0.0, respectively, related to pension and other post-employment benefits	(0.6)	(0.1)	97.2	(0.5)
Other comprehensive income (loss)	0.1	(2.3)	97.8	4.2
Total comprehensive income	$ 232.4	$ 221.3	$ 525.4	$ 509.6