Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	May 26, 2019	May 27, 2018	May 28, 2017
Statement of Comprehensive Income [Abstract]
Net earnings	$ 713.4	$ 596.0	$ 479.1
Other comprehensive income (loss):
Foreign currency adjustment	0.6	(0.9)	0.5
Change in fair value of marketable securities, net of taxes of $0.0, $0.0 and $0.0, respectively	0.0	(0.1)	0.0
Change in fair value of derivatives and amortization of unrecognized gains and losses on derivatives, net of taxes of $(0.1), $0.0 and $0.5, respectively	5.6	(4.6)	4.3
Net unamortized gain (loss) arising during period, including amortization of unrecognized net actuarial loss, net of taxes of $(6.4), $(0.7) and $11.9, respectively	(19.2)	(1.1)	19.3
Reclassification of tax effect	0.0	(15.6)	0.0
Other comprehensive income (loss)	(13.0)	(22.3)	24.1
Total comprehensive income	$ 700.4	$ 573.7	$ 503.2