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Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill by Segment (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 28, 2013 | Dec. 29, 2012
Goodwill [Line Items] |  |
Beginning Balance | $ 807.4 | $ 795.8
Currency translation | 6.6 | 11.6
Acquisition | 24.8 |
Ending Balance | 838.8 | 807.4
Commercial & Industrial Group [Member] |  |
Goodwill [Line Items] |  |
Beginning Balance | 306.9 | 297.0
Currency translation | 5.6 | 9.9
Acquisition |  |
Ending Balance | 312.5 | 306.9
Snap-on Tools Group [Member] |  |
Goodwill [Line Items] |  |
Beginning Balance | 12.5 | 12.5
Currency translation |  |
Acquisition |  |
Ending Balance | 12.5 | 12.5
Repair Systems & Information Group [Member] |  |
Goodwill [Line Items] |  |
Beginning Balance | 488.0 | 486.3
Currency translation | 1.0 | 1.7
Acquisition | 24.8 |
Ending Balance | $ 513.8 | $ 488.0

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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- Details
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- Definition Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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