v2.4.0.8
Stock Compensation Plans (Weighted-Average Assumptions Used for Fair Value of Options Estimated Using Black-Scholes Option Pricing Model) (Detail) (USD $)
12 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Weighted average grant date fair value of options granted $ 12.82 $ 9.98 $ 10.53
Expected volatility 0.3746% 0.3906% 0.4078%
Dividend yield 3.86% 4.50% 4.02%
Expected life of options in years 6 years 9 months 18 days 6 years 7 months 6 days 6 years 6 months
Risk-free interest rate 2.10% 1.00% 1.20%