Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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- Definition

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 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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- Definition

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.

+ 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 (d)(5)(i)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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- Definition

Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

+ 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)
-URI http://asc.fasb.org/extlink&oid=82843861&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)(1)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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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. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 1,305.0	$ 1,110.8	$ 1,049.2
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	$ 182.3	$ 153.7
Foreign Pension Plans [Member] \| Equity securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation	35.00%
Actual weighted-average asset allocation	36.00%	41.00%
Foreign Pension Plans [Member] \| Debt Securities and Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation	40.00%
Actual weighted-average asset allocation	42.00%	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	22.00%	23.00%
Foreign Pension Plans [Member] \| Hedge Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 16.1	$ 14.3
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	$ 1,122.7	$ 957.1
Domestic Pension Plans [Member] \| Equity securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation	51.00%
Actual weighted-average asset allocation	51.00%	51.00%
Domestic Pension Plans [Member] \| Debt Securities and Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation	37.00%
Actual weighted-average asset allocation	38.00%	39.00%
Domestic Pension Plans [Member] \| Real estate and other real assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation	2.00%
Actual weighted-average asset allocation	1.00%	1.00%
Fair value of plan assets	$ 13.2	$ 10.4
Domestic Pension Plans [Member] \| Hedge Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation	10.00%
Actual weighted-average asset allocation	10.00%	9.00%
Fair value of plan assets	$ 106.1	$ 87.7