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Exit And Disposal Activities (Components Of Exit And Disposal Accrual Activity) (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 29, 2012 | Dec. 31, 2011
Restructuring Cost and Reserve [Line Items] |  |
Beginning Balance | $ 8.4 | $ 10.5
Provision | 8.8 | 8.2
Usage | (10.0) | (10.3)
Ending Balance | 7.2 | 8.4
Employee Severance [Member] | Commercial & Industrial Group [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Beginning Balance | 3.6 | 2.8
Provision | 8.7 | 4.3
Usage | (6.1) | (3.5)
Ending Balance | 6.2 | 3.6
Employee Severance [Member] | Snap-On Tools Group [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Beginning Balance | 0.6 | 3.5
Provision | (0.1) | 1.8
Usage | (0.4) | (4.7)
Ending Balance | 0.1 | 0.6
Employee Severance [Member] | Repair Systems & Information Group [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Beginning Balance | 3.8 | 3.3
Provision | 0.2 | 2.1
Usage | (3.3) | (1.6)
Ending Balance | 0.7 | 3.8
Employee Severance [Member] | Corporate [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Beginning Balance |  | 0.2
Usage |  | (0.2)
Facility Closing [Member] | Commercial & Industrial Group [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Beginning Balance | 0.4 | 0.5
Usage | (0.2) | (0.1)
Ending Balance | 0.2 | 0.4
Facility Closing [Member] | Snap-On Tools Group [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Beginning Balance |  | 0.2
Usage |  | $ (0.2)

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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 95-3 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=6394695&loc=d3e140904-122747 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
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- Definition Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)(2)) -URI http://asc.fasb.org/extlink&oid=6394695&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) (2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 95-3 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 146 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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