Derivative Instruments and Hedging Activities (Effects of Derivatives Not Designated as Hedging Instruments) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Nov. 25, 2018	Nov. 26, 2017	Nov. 25, 2018	Nov. 26, 2017
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Earnings	$ 0.1	$ (0.8)	$ 17.5	$ (1.9)
Restaurant labor expenses
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Earnings	0.3	(0.1)	7.3	(0.6)
General and administrative expenses
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Earnings	$ (0.2)	$ (0.7)	$ 10.2	$ (1.3)

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