Derivative Instruments And Hedging Activities (Notional and Fair Value Of Derivative Contracts Designated And Not Designated As Hedging Instruments) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	May 28, 2017	May 29, 2016
Derivatives, Fair Value [Line Items]
Derivative contracts, number of shares outstanding	125.4	126.2
Equity forwards
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 0.0	$ 3.8
Derivative Liabilities	$ (0.4)	0.0
Equity forwards | Derivative contracts designated as hedging instruments:
Derivatives, Fair Value [Line Items]
Derivative contracts, number of shares outstanding	0.3
Derivative contracts, weighted-average forward rates	$ 59.36
Notional value	$ 18.7
Derivative Assets	0.0	1.2
Derivative Liabilities	$ (0.1)	0.0
Equity forwards | Derivative contracts not designated as hedging instruments:
Derivatives, Fair Value [Line Items]
Derivative contracts, number of shares outstanding	0.6
Derivative contracts, weighted-average forward rates	$ 51.85
Notional value	$ 31.5
Derivative Assets	0.0	2.6
Derivative Liabilities	$ (0.3)	$ 0.0