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Stock-Based Compensation (Performance Stock Unit Activity) (Narrative) (Details) (USD $)
12 Months Ended
May 25, 2014
May 26, 2013
May 27, 2012
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]      
Vesting period (years) 4 years    
Performance stock units
     
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]      
Total stock unit liability $ 9,500,000 $ 16,800,000  
Vesting period (years) 3 years    
Unrecognized compensation cost related to unvested stock options granted 5,300,000    
Unrecognized compensation cost, period of recognition, in years (years) 1 year 8 months 7 days    
Fair market value on grant date 8,800,000    
Employee stock purchase plan
     
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]      
Percentage of capital stock (percentage) 5.00%    
Investment authorized 5,000.0    
Shares available for purchase by employees (shares) 3,600,000.0    
Percent of fair market value, common stock purchased by employees (percentage) 85.00%    
Cash received from employees who acquired shares under ESPP 7,200,000 7,300,000 7,200,000
Minimum
     
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]      
Vesting period (years) 1 year    
Minimum | Performance stock units
     
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]      
Vesting percentage (percentage) 0.00%    
Maximum
     
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]      
Vesting period (years) 4 years    
Maximum | Performance stock units
     
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]      
Vesting percentage (percentage) 150.00%    
Other Current Liabilities | Performance stock units
     
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]      
Current stock unit liability 5,300,000 9,000,000  
Other Liabilities | Performance stock units
     
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Line Items]      
Noncurrent stock unit liability $ 4,200,000 $ 7,800,000