Revenue Recognition (Deferred Revenue from Contract with Customer) (Details) - USD ($) $ in Millions	May 31, 2020	May 26, 2019	May 27, 2018
Unearned revenues
Deferred revenues	$ 467.9	$ 428.5
Other liabilities
Deferred franchise fees - non-current	2.8	3.9
Gift Card
Unearned revenues
Deferred revenues	494.6	453.6	$ 443.1
Deferred gift card discounts	(28.2)	(26.4)
Other
Unearned revenues
Deferred revenues	$ 1.5	$ 1.3

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130532-203044

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130531-203044

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045

Name:	us-gaap_ContractWithCustomerLiabilityNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant