Stockholders' Equity (Schedule of accumulated other income income (loss)) (Details) - USD ($) $ in Millions	Nov. 27, 2016	May 29, 2016
Accumulated Other Comprehensive Loss, Net Of Tax [Abstract]
Foreign currency translation adjustments	$ (607.2)	$ (644.2)
Unrealized gain (loss) from:
Securities	4.1	3.8
Hedge derivatives	10.1	(25.5)
Pension, other postretirement, and postemployment benefits:
Net actuarial gain (loss)	(1,898.0)	(1,958.2)
Prior service costs	14.1	11.9
Accumulated other comprehensive loss	$ (2,476.9)	$ (2,612.2)