v3.25.4

Income Taxes - Schedule of Operating Loss Carry Forwards (Details) $ in Millions	Jan. 03, 2026 USD ($)
Income Taxes [Line Items]
Total net operating loss carryforwards	$ 164.9
State
Income Taxes [Line Items]
Total net operating loss carryforwards	0.0
Federal
Income Taxes [Line Items]
Total net operating loss carryforwards	0.0
Foreign
Income Taxes [Line Items]
Total net operating loss carryforwards	164.9
2026-2030
Income Taxes [Line Items]
Total net operating loss carryforwards	35.3
2026-2030 | State
Income Taxes [Line Items]
Total net operating loss carryforwards	0.0
2026-2030 | Federal
Income Taxes [Line Items]
Total net operating loss carryforwards	0.0
2026-2030 | Foreign
Income Taxes [Line Items]
Total net operating loss carryforwards	35.3
2031-2035
Income Taxes [Line Items]
Total net operating loss carryforwards	19.8
2031-2035 | State
Income Taxes [Line Items]
Total net operating loss carryforwards	0.0
2031-2035 | Federal
Income Taxes [Line Items]
Total net operating loss carryforwards	0.0
2031-2035 | Foreign
Income Taxes [Line Items]
Total net operating loss carryforwards	19.8
2036-2040
Income Taxes [Line Items]
Total net operating loss carryforwards	30.3
2036-2040 | State
Income Taxes [Line Items]
Total net operating loss carryforwards	0.0
2036-2040 | Federal
Income Taxes [Line Items]
Total net operating loss carryforwards	0.0
2036-2040 | Foreign
Income Taxes [Line Items]
Total net operating loss carryforwards	30.3
2041-2045
Income Taxes [Line Items]
Total net operating loss carryforwards	21.0
2041-2045 | State
Income Taxes [Line Items]
Total net operating loss carryforwards	0.0
2041-2045 | Federal
Income Taxes [Line Items]
Total net operating loss carryforwards	0.0
2041-2045 | Foreign
Income Taxes [Line Items]
Total net operating loss carryforwards	21.0
Indefinite
Income Taxes [Line Items]
Total net operating loss carryforwards	58.5
Indefinite | State
Income Taxes [Line Items]
Total net operating loss carryforwards	0.0
Indefinite | Federal
Income Taxes [Line Items]
Total net operating loss carryforwards	0.0
Indefinite | Foreign
Income Taxes [Line Items]
Total net operating loss carryforwards	$ 58.5

X

- Definition

Income Taxes [Line Items]

+ References

No definition available.

+ Details

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

X

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-6

+ Details

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

X

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=us-gaap_StateAndLocalJurisdictionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=us-gaap_DomesticCountryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=us-gaap_ForeignCountryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TaxCreditCarryforwardAxis=sna_CreditsExpiringInRangeOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TaxCreditCarryforwardAxis=sna_CreditsExpiringInRangeTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TaxCreditCarryforwardAxis=sna_CreditsExpiringInRangeThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TaxCreditCarryforwardAxis=sna_CreditsExpiringInRangeFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TaxCreditCarryforwardAxis=sna_IndefiniteMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: