Income Taxes - Narrative (Details) - USD ($)	6 Months Ended
Jul. 02, 2022	Jul. 03, 2021
Income Tax [Line Items]
Effective income tax rate	23.70%	23.40%
Minimum
Income Tax [Line Items]
Decrease in unrecognized tax benefits	$ 0
Increase in unrecognized tax benefits	0
Maximum
Income Tax [Line Items]
Decrease in unrecognized tax benefits	4,200,000
Increase in unrecognized tax benefits	$ 800,000

Effective income tax rate on earnings attributable to Snap-on.

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- Definition

Income Tax [Line Items]

+ References

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- Definition

Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (d)(3)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32718-109319

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- Definition

Amount of increase reasonably possible in the next twelve months for the unrecognized tax benefit.

+ References

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