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Share-Based Compensation (Tables) | 9 Months Ended
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Sep. 26, 2020
Share-based Payment Arrangement, Noncash Expense [Abstract] |
Fair Value Assumptions for Performance Awards | The fair values of the senior executives' performance share award grants with a TSR modifier for grants in 2020 and 2019 were $64.72 and $49.64, respectively, which were estimated using the Monte Carlo valuation model, and incorporated the following assumptions:
| 2020 |  | 2019 |  |  |
Risk-free interest rate | 1.4 | % |  | 2.9 | % |  |  |
Dividend yield | 1.5 | % |  | 1.7 | % |  |  |
Volatility factor | 46.6 | % |  | 41.0 | % |  |  |
Expected life of award | 2.9 years |  | 2.9 years |  |  |

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- Definition Schedule of Share-based Payment Award, Equity Instruments Other than Options, Valuation Assumptions [Table Text Block] + References No definition available. + Details
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- References No definition available. + Details
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