Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Feb. 23, 2014	Feb. 24, 2013	Feb. 23, 2014	Feb. 24, 2013
Statement of Comprehensive Income [Abstract]
Net earnings	$ 109.7	$ 134.4	$ 199.7	$ 278.8
Other comprehensive income (loss):
Foreign currency adjustment	(1.7)	(0.6)	(3.6)	0.1
Change in fair value of marketable securities, net of tax benefit of $0.0, $0.0, $0.1 and $0.1, respectively	0	0	(0.1)	(0.1)
Change in fair value of derivatives and amortization of unrecognized gains and losses on derivatives, net of tax expense (benefit) of $1.3, $1.0, $3.4 and $(1.6), respectively	0	(3.7)	3.7	(8.9)
Amortization of unrecognized net actuarial loss, net of tax expense of $1.0, $1.1, $3.0 and $3.2, respectively	1.6	1.7	4.8	5.2
Other comprehensive income (loss)	(0.1)	(2.6)	4.8	(3.7)
Total comprehensive income	$ 109.6	$ 131.8	$ 204.5	$ 275.1