Stockholders' Equity (Schedule of accumulated other income income (loss)) (Details) - USD ($) $ in Millions	Aug. 28, 2016	May 29, 2016
Accumulated Other Comprehensive Loss, Net Of Tax [Abstract]
Foreign currency translation adjustments	$ (557.6)	$ (644.2)
Unrealized gain (loss) from:
Securities	4.2	3.8
Hedge derivatives	(15.6)	(25.5)
Pension, other postretirement, and postemployment benefits:
Net actuarial gain (loss)	(1,928.1)	(1,958.2)
Prior service costs	12.4	11.9
Accumulated other comprehensive loss	$ (2,484.7)	$ (2,612.2)