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Stock-Based Compensation (Valuation Assumptions) (Details) - $ / shares
3 Months Ended 6 Months Ended
Jun. 26, 2015
Jun. 27, 2014
Jun. 26, 2015
Jun. 27, 2014
Employee Stock (ESPP) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 9 months 1 year 9 months 1 year
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate 41.80% 25.50% 41.80% 25.50%
Risk-free interest rate 0.10% 0.10% 0.10% 0.10%
Dividend yield 1.60% 1.90% 1.60% 1.90%
Weighted-average estimated fair value $ 12.90 $ 7.68 $ 12.90 $ 7.68
Restricted Stock Units (RSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Risk-free interest rate 0.80% 0.70% 0.80% 0.70%
Dividend yield 1.60% 1.90% 1.60% 1.90%
Weighted-average estimated fair value $ 43.24 $ 31.01 $ 42.63 $ 30.97
Performance-based Restricted Stock Units (Market-Based PRSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate 30.00% 32.20% 30.00% 32.20%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, SOX [Abstract] 19.70% 24.30% 19.70% 24.30%
Risk-free interest rate 1.00% 0.90% 1.00% 0.90%
Dividend yield 1.60% 1.90% 1.60% 1.90%
Weighted-average estimated fair value $ 58.02 $ 31.18 $ 58.02 $ 31.18