Derivative Instruments and Hedging Activities (Effects Of Derivatives Not Designated As Hedging Instruments) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 26, 2017	Nov. 27, 2016	Nov. 26, 2017	Nov. 27, 2016
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Earnings	$ (0.8)	$ 7.5	$ (1.9)	$ 4.4
Equity forwards | Restaurant labor expenses
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Earnings	(0.1)	2.6	(0.6)	1.5
Equity forwards | General and administrative expenses
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Earnings	$ (0.7)	$ 4.9	$ (1.3)	$ 2.9