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Financial Statement Policies (Narrative) (Details) (USD $)
In Millions, except Share data
3 Months Ended9 Months Ended
Oct. 01, 2011
Oct. 02, 2010
Oct. 01, 2011
Oct. 02, 2010
Tax expense (benefit) of the changes in fair value of hedging activities$ 1.6$ (2.8)$ 1.4$ (2.1)
Weighted average shares issuable under stock-based awards39,750 39,75043,000
Restricted cash5.6 5.6 
Scenario, Forecast [Member]
    
Foreign contract derivative net of tax, gain  $ 2.5