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Pension Plans - Summary of Fair Value by Asset Category and Within Fair Value Hierarchy (Detail) - USD ($) $ in Millions	Dec. 29, 2018	Dec. 30, 2017
United States
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 1,049.0	$ 1,122.7
United States | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	17.8	20.6
United States | Domestic
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	70.5	73.4
United States | Foreign
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	87.5	100.1
United States | Commingled funds – domestic
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	200.6	225.0
United States | Commingled funds – foreign
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	128.4	148.8
United States | Private equity partnerships
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	22.7	27.5
United States | Government
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	133.8	155.0
United States | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	271.3	253.0
United States | Real estate and other real assets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11.9	13.2
United States | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	104.5	106.1
Foreign Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	166.6	182.3
Foreign Pension Plans | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1.2	0.7
Foreign Pension Plans | Government
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8.3	8.8
Foreign Pension Plans | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	17.5	18.3
Foreign Pension Plans | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	14.3	16.1
Foreign Pension Plans | Commingled funds – multi-strategy
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	101.5	114.2
Foreign Pension Plans | Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	23.8	24.2
Quoted Prices for Identical Assets (Level 1) | United States
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	307.0	346.9
Quoted Prices for Identical Assets (Level 1) | United States | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	17.8	20.6
Quoted Prices for Identical Assets (Level 1) | United States | Domestic
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	70.5	73.4
Quoted Prices for Identical Assets (Level 1) | United States | Foreign
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	87.5	100.1
Quoted Prices for Identical Assets (Level 1) | United States | Commingled funds – domestic
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Quoted Prices for Identical Assets (Level 1) | United States | Commingled funds – foreign
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Quoted Prices for Identical Assets (Level 1) | United States | Private equity partnerships
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Quoted Prices for Identical Assets (Level 1) | United States | Government
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	131.2	152.8
Quoted Prices for Identical Assets (Level 1) | United States | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Quoted Prices for Identical Assets (Level 1) | United States | Real estate and other real assets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Quoted Prices for Identical Assets (Level 1) | United States | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Quoted Prices for Identical Assets (Level 1) | Foreign Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9.5	9.5
Quoted Prices for Identical Assets (Level 1) | Foreign Pension Plans | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1.2	0.7
Quoted Prices for Identical Assets (Level 1) | Foreign Pension Plans | Government
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8.3	8.8
Quoted Prices for Identical Assets (Level 1) | Foreign Pension Plans | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Quoted Prices for Identical Assets (Level 1) | Foreign Pension Plans | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Quoted Prices for Identical Assets (Level 1) | Foreign Pension Plans | Commingled funds – multi-strategy
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Quoted Prices for Identical Assets (Level 1) | Foreign Pension Plans | Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) | United States
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	273.9	255.2
Significant Other Observable Inputs (Level 2) | United States | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) | United States | Domestic
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) | United States | Foreign
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) | United States | Commingled funds – domestic
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) | United States | Commingled funds – foreign
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) | United States | Private equity partnerships
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) | United States | Government
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2.6	2.2
Significant Other Observable Inputs (Level 2) | United States | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	271.3	253.0
Significant Other Observable Inputs (Level 2) | United States | Real estate and other real assets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) | United States | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) | Foreign Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	41.3	42.5
Significant Other Observable Inputs (Level 2) | Foreign Pension Plans | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) | Foreign Pension Plans | Government
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) | Foreign Pension Plans | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	17.5	18.3
Significant Other Observable Inputs (Level 2) | Foreign Pension Plans | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) | Foreign Pension Plans | Commingled funds – multi-strategy
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) | Foreign Pension Plans | Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	23.8	24.2
Investments Measured at NAV | United States
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	468.1	520.6
Investments Measured at NAV | United States | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Investments Measured at NAV | United States | Domestic
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Investments Measured at NAV | United States | Foreign
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Investments Measured at NAV | United States | Commingled funds – domestic
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	200.6	225.0
Investments Measured at NAV | United States | Commingled funds – foreign
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	128.4	148.8
Investments Measured at NAV | United States | Private equity partnerships
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	22.7	27.5
Investments Measured at NAV | United States | Government
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Investments Measured at NAV | United States | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Investments Measured at NAV | United States | Real estate and other real assets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11.9	13.2
Investments Measured at NAV | United States | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	104.5	106.1
Investments Measured at NAV | Foreign Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	115.8	130.3
Investments Measured at NAV | Foreign Pension Plans | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Investments Measured at NAV | Foreign Pension Plans | Government
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Investments Measured at NAV | Foreign Pension Plans | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Investments Measured at NAV | Foreign Pension Plans | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	14.3	16.1
Investments Measured at NAV | Foreign Pension Plans | Commingled funds – multi-strategy
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	101.5	114.2
Investments Measured at NAV | Foreign Pension Plans | Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0.0	$ 0.0

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