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Pension Plans - Summary of Expected Benefit Payments (Detail) - Pension Plan
$ in Millions
Dec. 28, 2019
USD ($)
Defined Benefit Plan Disclosure [Line Items]  
2020 $ 81.7
2021 84.3
2022 95.1
2023 91.3
2024 94.6
2025-2029 $ 498.9