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Stockholders' Equity (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Nov. 25, 2012
Nov. 25, 2012
Nov. 27, 2011
Equity, Class of Treasury Stock [Line Items]      
Authorization to repurchase common stock, shares 187,400,000 187,400,000  
Total repurchased shares of common stock, shares 171,900,000 171,900,000  
Common stock repurchased, shares 2,000 1,043,000  
Common stock repurchased, total cost $ 0.1 $ 52.3  
Treasury shares retirement, shares   159,300,000 0
Treasury shares retirement   0  
Treasury Stock
     
Equity, Class of Treasury Stock [Line Items]      
Treasury shares retirement   $ 3,737.5