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Pension Plans - Summary of Fair Value by Asset Category and Within Fair Value Hierarchy (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 1,110.8	$ 1,049.2	$ 1,103.4
Domestic Pension Plans [Member] | Investments Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	441.3	426.6
Domestic Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	957.1	892.3
Domestic Pension Plans [Member] | Cash and cash equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	20.4	21.3
Domestic Pension Plans [Member] | Domestic [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	66.0	53.9
Domestic Pension Plans [Member] | Foreign [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	74.7	61.7
Domestic Pension Plans [Member] | Commingled funds - domestic [Member] | Investments Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	191.3	169.3
Domestic Pension Plans [Member] | Commingled funds - domestic [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	191.3	169.3
Domestic Pension Plans [Member] | Commingled funds - foreign [Member] | Investments Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	117.7	110.0
Domestic Pension Plans [Member] | Commingled funds - foreign [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	117.7	110.0
Domestic Pension Plans [Member] | Private Equity Partnerships [Member] | Investments Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	34.2	43.7
Domestic Pension Plans [Member] | Private Equity Partnerships [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	34.2	43.7
Domestic Pension Plans [Member] | Government [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	140.1	133.0
Domestic Pension Plans [Member] | Corporate bond [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	214.6	195.8
Domestic Pension Plans [Member] | Real estate and other real assets [Member] | Investments Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	10.4	17.4
Domestic Pension Plans [Member] | Real estate and other real assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	10.4	17.4
Domestic Pension Plans [Member] | Hedge Funds [Member] | Investments Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	87.7	86.2
Domestic Pension Plans [Member] | Hedge Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	87.7	86.2
Foreign Pension Plans [Member] | Investments Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	131.7	136.9
Foreign Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	153.7	156.9
Foreign Pension Plans [Member] | Cash and cash equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.7	0.2
Foreign Pension Plans [Member] | Hedge Funds [Member] | Investments Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	14.3	17.9
Foreign Pension Plans [Member] | Hedge Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	14.3	17.9
Foreign Pension Plans [Member] | Commingled funds - multi-strategy [Member] | Investments Measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	117.4	119.0
Foreign Pension Plans [Member] | Commingled funds - multi-strategy [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	117.4	119.0
Foreign Pension Plans [Member] | Insurance contracts [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	21.3	19.8
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	300.3	269.9
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	20.4	21.3
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member] | Domestic [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	66.0	53.9
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member] | Foreign [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	74.7	61.7
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member] | Government [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	139.2	133.0
Quoted Prices For Identical Assets (Level 1) [Member] | Foreign Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.7	0.2
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	0.7	0.2
Significant Other Observable Inputs (Level 2) [Member] | Domestic Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	215.5	195.8
Significant Other Observable Inputs (Level 2) [Member] | Domestic Pension Plans [Member] | Government [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.9
Significant Other Observable Inputs (Level 2) [Member] | Domestic Pension Plans [Member] | Corporate bond [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	214.6	195.8
Significant Other Observable Inputs (Level 2) [Member] | Foreign Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	21.3	19.8
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	$ 21.3	$ 19.8

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+ References

No definition available.

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Fair value of assets that have been segregated and restricted to provide pension or postretirement benefits. Assets include, but are not limited to, stocks, bonds, other investments, earnings from investments, and contributions by the employer and employees.

+ 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=64937038&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=65897934&loc=d3e1928-114920

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Plan Assets
-URI http://asc.fasb.org/extlink&oid=6749337

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Plan Assets
-URI http://asc.fasb.org/extlink&oid=6520858

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