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Pension Plans - Summary of Fair Value by Asset Category and Within Fair Value Hierarchy (Detail) (USD $) In Millions, unless otherwise specified | Dec. 28, 2013 | Dec. 29, 2012 | Dec. 31, 2011
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | $ 1,015.4 | $ 964.0 | $ 846.1
Domestic Pension Plans [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 863.4 | 830.6 |
Domestic Pension Plans [Member] | Cash And Cash Equivalents [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 18.0 | 25.5 |
Domestic Pension Plans [Member] | Domestic Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 59.9 | 45.1 |
Domestic Pension Plans [Member] | Foreign Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 65.4 | 63.4 |
Domestic Pension Plans [Member] | Commingled Funds - Domestic Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 162.6 | 140.2 |
Domestic Pension Plans [Member] | Commingled Funds - Foreign Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 105.5 | 96.8 |
Domestic Pension Plans [Member] | Private Equity Partnerships Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 49.4 | 49.6 |
Domestic Pension Plans [Member] | Government Debt Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 110.8 | 91.9 |
Domestic Pension Plans [Member] | Corporate Debt Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 166.1 | 192.5 |
Domestic Pension Plans [Member] | Real Estate And Other Real Assets [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 35.4 | 50.6 |
Domestic Pension Plans [Member] | Hedge funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 90.3 | 75.0 |
Foreign Pension Plans [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 152.0 | 133.4 |
Foreign Pension Plans [Member] | Cash And Cash Equivalents [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0.8 | 3.9 |
Foreign Pension Plans [Member] | Equity securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 11.6 |
Foreign Pension Plans [Member] | Hedge funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 24.8 | 20.0 |
Foreign Pension Plans [Member] | Commingled Funds - Multi-Strategy [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 122.4 | 94.1 |
Foreign Pension Plans [Member] | Insurance Contracts [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 4.0 | 3.8 |
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 254.1 | 237.5 |
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member] | Cash And Cash Equivalents [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 18.0 | 25.5 |
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member] | Domestic Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 59.9 | 45.1 |
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member] | Foreign Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 65.4 | 63.4 |
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member] | Government Debt Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 110.8 | 91.9 |
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member] | Real Estate And Other Real Assets [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 11.6 |
Quoted Prices For Identical Assets (Level 1) [Member] | Foreign Pension Plans [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0.8 | 15.5 |
Quoted Prices For Identical Assets (Level 1) [Member] | Foreign Pension Plans [Member] | Cash And Cash Equivalents [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0.8 | 3.9 |
Quoted Prices For Identical Assets (Level 1) [Member] | Foreign Pension Plans [Member] | Equity securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 11.6 |
Significant Other Observable Inputs (Level 2) [Member] | Domestic Pension Plans [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 434.2 | 429.5 |
Significant Other Observable Inputs (Level 2) [Member] | Domestic Pension Plans [Member] | Commingled Funds - Domestic Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 162.6 | 140.2 |
Significant Other Observable Inputs (Level 2) [Member] | Domestic Pension Plans [Member] | Commingled Funds - Foreign Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 105.5 | 96.8 |
Significant Other Observable Inputs (Level 2) [Member] | Domestic Pension Plans [Member] | Corporate Debt Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 166.1 | 192.5 |
Significant Other Observable Inputs (Level 2) [Member] | Foreign Pension Plans [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 126.4 | 97.9 |
Significant Other Observable Inputs (Level 2) [Member] | Foreign Pension Plans [Member] | Commingled Funds - Multi-Strategy [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 122.4 | 94.1 |
Significant Other Observable Inputs (Level 2) [Member] | Foreign Pension Plans [Member] | Insurance Contracts [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 4.0 | 3.8 |
Significant Unobservable Inputs (Level 3) [Member] | Domestic Pension Plans [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 175.1 | 163.6 |
Significant Unobservable Inputs (Level 3) [Member] | Domestic Pension Plans [Member] | Private Equity Partnerships Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 49.4 | 49.6 |
Significant Unobservable Inputs (Level 3) [Member] | Domestic Pension Plans [Member] | Real Estate And Other Real Assets [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 35.4 | 39.0 |
Significant Unobservable Inputs (Level 3) [Member] | Domestic Pension Plans [Member] | Hedge funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 90.3 | 75.0 |
Significant Unobservable Inputs (Level 3) [Member] | Foreign Pension Plans [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 24.8 | 20.0 |
Significant Unobservable Inputs (Level 3) [Member] | Foreign Pension Plans [Member] | Hedge funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | $ 24.8 | $ 20.0 |

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- Definition Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=29635418&loc=d3e12355-114930 + Details
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