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Assumptions for Stock Options and Employee SARs (Detail) (Stock Option Program and Stock Appreciation Right Program)
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12 Months Ended | ||
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Dec. 31, 2013
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Dec. 28, 2012
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Dec. 30, 2011
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| Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Line Items] | |||
| Expected volatility | 31.00% | 32.00% | |
| Dividend yield | 1.17% | 1.01% | 0.73% |
| Risk-free rate | 3.40% | ||
| Expected term (in years) | 8 years | ||
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Lower Limit
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| Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Line Items] | |||
| Expected volatility | 30.00% | ||
| Risk-free rate | 1.80% | 1.70% | |
| Expected term (in years) | 8 years | 8 years | |
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Upper Limit
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| Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Line Items] | |||
| Expected volatility | 31.00% | ||
| Risk-free rate | 1.90% | 2.00% | |
| Expected term (in years) | 10 years | 10 years | |