XML 53 R67.htm IDEA: XBRL DOCUMENT v2.4.1.9

Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill by Segment (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 03, 2015	Dec. 28, 2013
Goodwill [Line Items]
Beginning Balance	$ 838.8us-gaap_Goodwill	$ 807.4us-gaap_Goodwill
Currency translation	(41.3)us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments	6.6us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments
Acquisition	13.2us-gaap_GoodwillAcquiredDuringPeriod	24.8us-gaap_GoodwillAcquiredDuringPeriod
Ending Balance	810.7us-gaap_Goodwill	838.8us-gaap_Goodwill
Commercial & Industrial Group [Member]
Goodwill [Line Items]
Beginning Balance	312.5us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sna_CommercialAndIndustrialGroupMember	306.9us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sna_CommercialAndIndustrialGroupMember
Currency translation	(36.6)us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = sna_CommercialAndIndustrialGroupMember	5.6us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = sna_CommercialAndIndustrialGroupMember
Acquisition
Ending Balance	275.9us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sna_CommercialAndIndustrialGroupMember	312.5us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sna_CommercialAndIndustrialGroupMember
Snap-on Tools Group [Member]
Goodwill [Line Items]
Beginning Balance	12.5us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sna_ToolsGroupMember	12.5us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sna_ToolsGroupMember
Currency translation
Acquisition
Ending Balance	12.5us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sna_ToolsGroupMember	12.5us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sna_ToolsGroupMember
Repair Systems & Information Group [Member]
Goodwill [Line Items]
Beginning Balance	513.8us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sna_RepairSystemsAndInformationGroupMember	488.0us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sna_RepairSystemsAndInformationGroupMember
Currency translation	(4.7)us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = sna_RepairSystemsAndInformationGroupMember	1.0us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = sna_RepairSystemsAndInformationGroupMember
Acquisition	13.2us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_StatementBusinessSegmentsAxis = sna_RepairSystemsAndInformationGroupMember	24.8us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_StatementBusinessSegmentsAxis = sna_RepairSystemsAndInformationGroupMember
Ending Balance	$ 522.3us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sna_RepairSystemsAndInformationGroupMember	$ 513.8us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sna_RepairSystemsAndInformationGroupMember

X

- 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=35741047&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

Name:	us-gaap_Goodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- 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=35741047&loc=d3e13816-109267

+ Details

Name:	us-gaap_GoodwillAcquiredDuringPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_GoodwillLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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=35741047&loc=d3e13816-109267

+ Details

Name:	us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=sna_CommercialAndIndustrialGroupMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=sna_RepairSystemsAndInformationGroupMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=sna_ToolsGroupMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: