Income Taxes (Details) - USD ($)	9 Months Ended
Sep. 30, 2023	Oct. 01, 2022
Income Tax [Line Items]
Effective income tax rate	22.90%	23.00%
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	600,000
Increase in unrecognized tax benefits	$ 600,000

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

No definition available.

Name:	sna_EffectiveIncomeTaxRateOnEarnings
Namespace Prefix:	sna_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Income Tax [Line Items]

+ References

No definition available.

+ Details

Name:	sna_IncomeTaxLineItems
Namespace Prefix:	sna_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (d)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-15

+ Details

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

- Definition

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

+ References

+ Details

Name:	us-gaap_IncreaseInUnrecognizedTaxBenefitsIsReasonablyPossible
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: