v2.3.0.11
Income Taxes (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 25, 2011
Jun. 26, 2010
Notes to Financial Statements [Abstract]    
Effective tax rate (in hundredths) 32.20% 31.90%
Unrecognized tax benefits $ 29.0  
Total interest 6.1  
Total penalties $ 0