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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 | 12 Months Ended |  |
--- | --- | --- | ---
Jan. 02, 2016 | Jan. 03, 2015 | Dec. 28, 2013
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | $ 1,049.2 | $ 1,103.4 | $ 1,015.4
Foreign Pension Plans [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target allocation | 100.00% |  |
Actual weighted-average asset allocation | 100.00% | 100.00% |
Fair value of plan assets | $ 156.9 | $ 164.0 |
Foreign Pension Plans [Member] | Equity securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target allocation | 39.00% |  |
Actual weighted-average asset allocation | 40.00% | 39.00% |
Foreign Pension Plans [Member] | Debt Securities and Cash and Cash Equivalents [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target allocation | 36.00% |  |
Actual weighted-average asset allocation | 36.00% | 36.00% |
Foreign Pension Plans [Member] | Insurance contracts and hedge funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target allocation | 25.00% |  |
Actual weighted-average asset allocation | 24.00% | 25.00% |
Foreign Pension Plans [Member] | Hedge Funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | $ 17.9 | $ 18.1 |
Domestic Pension Plans [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target allocation | 100.00% |  |
Actual weighted-average asset allocation | 100.00% | 100.00% |
Fair value of plan assets | $ 892.3 | $ 939.4 |
Domestic Pension Plans [Member] | Equity securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target allocation | 50.00% |  |
Actual weighted-average asset allocation | 49.00% | 48.00% |
Domestic Pension Plans [Member] | Debt Securities and Cash and Cash Equivalents [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target allocation | 35.00% |  |
Actual weighted-average asset allocation | 39.00% | 39.00% |
Domestic Pension Plans [Member] | Real estate and other real assets [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target allocation | 5.00% |  |
Actual weighted-average asset allocation | 2.00% | 3.00% |
Fair value of plan assets | $ 17.4 | $ 30.8 |
Domestic Pension Plans [Member] | Hedge Funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target allocation | 10.00% |  |
Actual weighted-average asset allocation | 10.00% | 10.00% |
Fair value of plan assets | $ 86.2 | $ 91.5 |

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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 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=49178875&loc=d3e12355-114930 Reference 2: 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=58740216&loc=d3e1928-114920 + Details
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- Definition Target allocation of investments of this type to total plan assets presented on a weighted average basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c)(i) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2446-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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