Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Aug. 24, 2014	Aug. 25, 2013
Statement of Comprehensive Income [Abstract]
Net earnings	$ 503.2	$ 70.2
Other comprehensive income (loss):
Foreign currency adjustment	1.5	(1.0)
Change in fair value of marketable securities, net of taxes of $0.0 and $(0.1), respectively	(0.1)	(0.1)
Change in fair value of derivatives and amortization of unrecognized gains and losses on derivatives, net of taxes of $15.4 and $(1.0), respectively	23.9	(2.1)
Amortization of unrecognized net actuarial loss, net of taxes of $0.5 and $1.0, respectively	0.3	1.6
Other comprehensive income (loss)	25.6	(1.6)
Total comprehensive income	$ 528.8	$ 68.6