Stock-Based Compensation (Darden Stock Unit Activity) (Narrative) (Details) - Darden stock units - USD ($) $ in Millions	12 Months Ended
May 28, 2017	May 29, 2016
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]
Total stock unit liability	$ 65.0	$ 50.7
Unrecognized compensation cost related to unvested stock options granted	35.1
Fair market value on grant date	18.4
Other Current Liabilities
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]
Current stock unit liability	24.0	17.1
Other Liabilities
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]
Noncurrent stock unit liability	$ 41.0	$ 33.6

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements payable within one year (or the operating cycle, if longer).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements payable after one year (or the operating cycle, if longer).

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Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(2)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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