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v2.4.1.9

Segments - Revenue and Long-Lived Assets, Geographic Region (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Jan. 03, 2015 | Dec. 28, 2013 | Dec. 29, 2012
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Revenues | $ 3,492.6 us-gaap_Revenues | $ 3,237.5 us-gaap_Revenues | $ 3,099.2 us-gaap_Revenues
Long-lived assets | 1,418.5 us-gaap_NoncurrentAssets | 1,421.8 us-gaap_NoncurrentAssets |
United States [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Revenues | 2,288.9 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_US | 2,060.2 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_US | 1,930.4 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_US
Long-lived assets | 1,042.3 us-gaap_NoncurrentAssets / us-gaap_StatementGeographicalAxis = country_US | 1,004.6 us-gaap_NoncurrentAssets / us-gaap_StatementGeographicalAxis = country_US |
Europe [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Revenues | 701.9 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember | 658.3 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember | 649.0 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember
All Other [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Revenues | 501.8 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = sna_OtherCountryMember | 519.0 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = sna_OtherCountryMember | 519.8 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = sna_OtherCountryMember
Long-lived assets | 254.8 us-gaap_NoncurrentAssets / us-gaap_StatementGeographicalAxis = sna_OtherCountryMember | 272.9 us-gaap_NoncurrentAssets / us-gaap_StatementGeographicalAxis = sna_OtherCountryMember |
Sweden [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Long-lived assets | $ 121.4 us-gaap_NoncurrentAssets / us-gaap_StatementGeographicalAxis = country_SE | $ 144.3 us-gaap_NoncurrentAssets / us-gaap_StatementGeographicalAxis = country_SE |

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- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 + Details
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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