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Valuation and Qualifying Accounts (Details) (Allowance for Doubtful Accounts [Member], USD $)
In Millions, unless otherwise specified
12 Months Ended
May 27, 2012
May 29, 2011
May 30, 2010
Allowance for Doubtful Accounts [Member]
     
Valuation and Qualifying Accounts      
Balance at Beginning of Period $ 7.8 $ 8.5 $ 13.8
Additions Charged to Costs and Expenses 1.0 0.2 1.1
Deductions from Reserves 5.1 0.9 6.4
Other 2.2    
Balance at Close of Period $ 5.9 $ 7.8 $ 8.5