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Stock-Based Compensation (Stock Option Activity) (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
May 29, 2016
May 31, 2015
May 25, 2014
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]      
Total intrinsic value of options exercised $ 73.6 $ 90.2 $ 39.9
Cash received from option exercises $ 94.4 $ 154.6 $ 50.9
Vesting period (years) 4 years    
Maximum terms of awards (years) 10 years    
Darden stock units      
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]      
Unrecognized compensation cost related to unvested stock options granted $ 33.7    
Unrecognized compensation cost, period of recognition, in years (years) 2 years 9 months 18 days    
Fair market value on grant date $ 21.5    
Stock options      
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]      
Unrecognized compensation cost related to unvested stock options granted $ 8.9    
Unrecognized compensation cost, period of recognition, in years (years) 1 year 5 months 16 days    
Fair market value on grant date $ 7.0    
Minimum | Darden stock units      
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]      
Vesting period (years) 4 years    
Minimum | Restricted Stock and Restricted Stock Units [Member]      
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]      
Vesting period (years) 1 year    
Maximum | Darden stock units      
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]      
Vesting period (years) 5 years    
Maximum | Restricted Stock and Restricted Stock Units [Member]      
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]      
Vesting period (years) 4 years