XML 96 R80.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Income Taxes - Operating Loss Carry Forwards (Parenthetical) (Detail) | 12 Months Ended
--- | ---
Jan. 02, 2016
2016 - 2020 [Member] | Minimum [Member] |
Income Taxes [Line Items] |
Expiration Dates | 2016
2016 - 2020 [Member] | Maximum [Member] |
Income Taxes [Line Items] |
Expiration Dates | 2020
2021 - 2025 [Member] | Minimum [Member] |
Income Taxes [Line Items] |
Expiration Dates | 2021
2021 - 2025 [Member] | Maximum [Member] |
Income Taxes [Line Items] |
Expiration Dates | 2025
2026 - 2030 [Member] | Minimum [Member] |
Income Taxes [Line Items] |
Expiration Dates | 2026
2026 - 2030 [Member] | Maximum [Member] |
Income Taxes [Line Items] |
Expiration Dates | 2030
2031 - 2035 [Member] | Minimum [Member] |
Income Taxes [Line Items] |
Expiration Dates | 2031
2031 - 2035 [Member] | Maximum [Member] |
Income Taxes [Line Items] |
Expiration Dates | 2035

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 Net operating loss carryforwards expiration dates. + References No definition available. + Details
Name: | sna_NetOperatingLossCarryForwardsExpirationDate
Namespace Prefix: | sna_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_TaxCreditCarryforwardAxis=sna_ExpiringInTwoThousandSixteenToTwoThousandTwentyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxCreditCarryforwardAxis=sna_ExpiringInTwoThousandTwentyOneToTwoThousandTwentyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxCreditCarryforwardAxis=sna_ExpiringInTwoThousandTwentySixToTwoThousandThirtyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxCreditCarryforwardAxis=sna_ExpiringInTwoThousandThirtyOneToTwoThousandThirtyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |