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Stock-Based Compensation (Schedule Of Grant Date Fair Value Calculated Using Black-Scholes Option-Pricing Model) (Details) (USD $)
6 Months Ended
Jul. 02, 2011
Stock-Based Compensation  
Exercise price $ 42.34
Expected dividend yield 3.42%
Expected stock price volatility 49.40%
Risk-free interest rate 2.39%
Expected life (in years) 6.5