Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Schedule Of Assumptions Used And The Resulting Weighted Average Fair Value Of Stock Options Granted) (Details)

v2.4.0.6
Stock-Based Compensation (Schedule Of Assumptions Used And The Resulting Weighted Average Fair Value Of Stock Options Granted) (Details) (USD $)
12 Months Ended
Dec. 31, 2011
years
Jan. 01, 2011
years
Jan. 02, 2010
years
Stock-Based Compensation [Abstract]      
Expected volatility, minimum 27.00% 24.00% 33.00%
Expected volatility, maximum 38.00% 39.00% 48.00%
Weighted average expected volatility 34.00% 35.00% 38.00%
Expected term (in years), minimum 5.6 5.5 4.9
Expected term (in years), maximum 7.5 7.6 7.4
Dividend yield 3.10% 3.70% 3.50%
Risk-free interest rate, minimum 0.20% 0.20% 0.50%
Risk-free interest rate, maximum 3.50% 3.70% 2.90%
Weighted average fair value at date of grant $ 25.12 $ 18.46 $ 15.39