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Stock-Based Compensation, Fair Value of Options (Details) (USD $)
3 Months Ended 9 Months Ended
Mar. 31, 2012
Mar. 26, 2011
Mar. 31, 2012
Mar. 26, 2011
Stock Option [Member]
       
Weighted-average Assumptions Used for Fair Value of Award Granted [Abstract]        
Options granted, weighted average fair value of stock options (per share) $ 6.53 $ 6.25 $ 5.85 $ 3.85
Stock options [Member]
       
Weighted-average Assumptions Used for Fair Value of Award Granted [Abstract]        
Expected holding period (in years) 4.8 5 5.1 5.2
Risk-free interest rate 0.80% 2.10% 1.30% 1.70%
Expected stock price volatility 38.60% 36.40% 36.80% 36.90%
Dividend yield 3.50% 3.90% 3.20% 4.30%
ESP Plan [Member]
       
Weighted-average Assumptions Used for Fair Value of Award Granted [Abstract]        
Expected holding period (in years) 0.5 0.5 0.5 0.5
Risk-free interest rate 0.10% 0.20% 0.10% 0.20%
Expected stock price volatility 32.20% 31.40% 32.20% 31.40%
Dividend yield 3.80% 4.90% 3.80% 4.90%
Restricted stock units [Member]
       
Weighted-average Assumptions Used for Fair Value of Award Granted [Abstract]        
Restricted stock units granted, weighted average grant date fair value (per share) $ 25.38 $ 24.39 $ 20.46 $ 15.60