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Pension Plans - Summary of Target Allocation and Weighted-Average Asset Allocation by Asset Category and Fair Value of Plan Assets (Detail) - USD ($) $ in Millions	Dec. 29, 2018	Dec. 30, 2017
United States
Defined Benefit Plan Disclosure [Line Items]
Target allocation	100.00%
Actual weighted-average asset allocation	100.00%	100.00%
Fair value of plan assets	$ 1,049.0	$ 1,122.7
United States | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation	51.00%
Actual weighted-average asset allocation	49.00%	51.00%
United States | Debt securities and cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Target allocation	37.00%
Actual weighted-average asset allocation	40.00%	38.00%
United States | Real estate and other real assets
Defined Benefit Plan Disclosure [Line Items]
Target allocation	2.00%
Actual weighted-average asset allocation	1.00%	1.00%
Fair value of plan assets	$ 11.9	$ 13.2
United States | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Target allocation	10.00%
Actual weighted-average asset allocation	10.00%	10.00%
Fair value of plan assets	$ 104.5	$ 106.1
Foreign Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Target allocation	100.00%
Actual weighted-average asset allocation	100.00%	100.00%
Fair value of plan assets	$ 166.6	$ 182.3
Foreign Pension Plans | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation	35.00%
Actual weighted-average asset allocation	35.00%	36.00%
Foreign Pension Plans | Debt securities and cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Target allocation	40.00%
Actual weighted-average asset allocation	42.00%	42.00%
Foreign Pension Plans | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 14.3	$ 16.1
Foreign Pension Plans | Insurance contracts and hedge funds
Defined Benefit Plan Disclosure [Line Items]
Target allocation	25.00%
Actual weighted-average asset allocation	23.00%	22.00%

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Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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