Fair Value Measurements (Carrying Value And Fair Value Of Long-Term Debt) (Details) $ in Millions	12 Months Ended
May 29, 2016 USD ($) restaurant	May 31, 2015 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying value of long-term debt	$ 440.0	$ 1,467.3
Number of underperforming restaurants \| restaurant	2
Impairment of long-lived assets held-for-use	$ 5.4	15.1
Impairment of long-lived assets to be disposed of	0.6	4.1
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying value of long-term debt	440.0	1,470.0
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of long-term debt	499.5	1,570.0
Fair Value, Measurements, Nonrecurring \| Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Non-financial assets measured at fair value	5.4	70.5
Assets held-for-sale, long lived, fair value disclosure	17.5	21.1
Fair Value, Measurements, Nonrecurring \| Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Non-financial assets measured at fair value		55.4
Assets held-for-sale, long lived, fair value disclosure	$ 16.9	$ 17.0

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Number of Underperforming Restaurants

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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