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Summary Of Significant Accounting Policies (Capitalized Software Costs And Related Accumulated Amortization) (Details) (USD $)
In Millions, unless otherwise specified
May 27, 2012
May 29, 2011
Accounting Policies [Abstract]    
Capitalized software $ 84.3 $ 79.9
Accumulated amortization (63.4) (56.1)
Capitalized software, net of accumulated amortization $ 20.9 $ 23.8