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Pension Plans - Summary of Weighted-Average Assumptions Used to Determine Full-Year Pension Costs (Detail)
12 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]      
Rate of compensation increase 3.40% 3.40% 3.60%
Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 3.70% 4.20% 4.50%
Expected return on plan assets 7.10% 7.20% 7.40%