Derivative Instruments And Hedging Activities (Effects Of Derivatives Not Designated As Hedging Instruments) (Details) - USD ($) $ in Millions	12 Months Ended
May 27, 2018	May 28, 2017	May 29, 2016
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Earnings	$ 3.6	$ 14.2	$ 11.4
Derivative contracts designated as hedging instruments: \| Restaurant labor expenses
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Earnings	1.5	5.3	3.9
Derivative contracts designated as hedging instruments: \| General and administrative expenses
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Earnings	$ 2.1	$ 8.9	$ 7.5

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4CC
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL109998890-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959

Name:	us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration