XML 38 R134.htm IDEA: XBRL DOCUMENT v2.4.0.6

Segments (Net Sales By Segment) (Parenthetical) (Detail)	12 Months Ended
	Dec. 29, 2012
Segment Reporting Information [Line Items]
Percentage of revenues	10.00%

X

- Definition

Percentage Of Revenue Accounted By Major Customer

+ References

No definition available.

+ Details

Name:	sna_PercentageOfRevenueAccountedByMajorCustomer
Namespace Prefix:	sna_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

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