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Revenue Recognition - Revenue Disaggregation (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 30, 2023 | Dec. 31, 2022 | Jan. 01, 2022
Disaggregation of Revenue [Line Items] |  |  |
Revenue from contracts with customers | $ 4,703.2 | $ 4,468.6 |
Net sales | 5,108.3 | 4,842.5 | $ 4,601.7
Intersegment eliminations |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | (598.1) | (645.3) |
Commercial & Industrial Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 1,458.3 | 1,399.2 |
Snap-on Tools Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 2,088.8 | 2,072.0 |
Repair Systems & Information Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 1,781.2 | 1,666.9 |
Financial Services | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 378.1 | 349.7 |
Europe |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 760.9 | 723.3 | 808.5
Other revenues |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 27.0 | 24.2 |
Total net sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 4,730.2 | 4,492.8 | 4,252.0
Total net sales | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 5,328.3 | 5,138.1 | 4,848.0
Total net sales | Intersegment eliminations |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | (598.1) | (645.3) | (596.0)
Total net sales | Commercial & Industrial Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 1,458.3 | 1,399.2 | 1,406.3
Total net sales | Commercial & Industrial Group | Intersegment eliminations |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 312.7 | 340.9 |
Total net sales | Snap-on Tools Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 2,088.8 | 2,072.0 | 1,938.6
Total net sales | Snap-on Tools Group | Intersegment eliminations |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 0.0 | 0.0 |
Total net sales | Repair Systems & Information Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 1,781.2 | 1,666.9 | 1,503.1
Total net sales | Repair Systems & Information Group | Intersegment eliminations |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 285.4 | 304.4 |
Total net sales | Financial Services | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 0.0 | 0.0 |
Total net sales | Financial Services | Intersegment eliminations |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 0.0 | 0.0 |
Total net sales | External Sales |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 4,730.2 | 4,492.8 |
Total net sales | External Sales | Vehicle service professionals |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 3,667.1 | 3,525.3 |
Total net sales | External Sales | All other professionals |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 1,063.1 | 967.5 |
Total net sales | External Sales | Commercial & Industrial Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 1,145.6 | 1,058.3 |
Total net sales | External Sales | Commercial & Industrial Group | Operating Segments | Vehicle service professionals |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 82.5 | 90.8 |
Total net sales | External Sales | Commercial & Industrial Group | Operating Segments | All other professionals |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 1,063.1 | 967.5 |
Total net sales | External Sales | Snap-on Tools Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 2,088.8 | 2,072.0 |
Total net sales | External Sales | Snap-on Tools Group | Operating Segments | Vehicle service professionals |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 2,088.8 | 2,072.0 |
Total net sales | External Sales | Snap-on Tools Group | Operating Segments | All other professionals |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 0.0 | 0.0 |
Total net sales | External Sales | Repair Systems & Information Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 1,495.8 | 1,362.5 |
Total net sales | External Sales | Repair Systems & Information Group | Operating Segments | Vehicle service professionals |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 1,495.8 | 1,362.5 |
Total net sales | External Sales | Repair Systems & Information Group | Operating Segments | All other professionals |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 0.0 | 0.0 |
Total net sales | External Sales | Financial Services | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 0.0 | 0.0 |
Total net sales | External Sales | Financial Services | Operating Segments | Vehicle service professionals |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 0.0 | 0.0 |
Total net sales | External Sales | Financial Services | Operating Segments | All other professionals |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 0.0 | 0.0 |
Total net sales | External Sales | North America |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 3,566.2 | 3,384.7 |
Total net sales | External Sales | North America | Commercial & Industrial Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 580.5 | 498.3 |
Total net sales | External Sales | North America | Snap-on Tools Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 1,839.2 | 1,840.3 |
Total net sales | External Sales | North America | Repair Systems & Information Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 1,146.5 | 1,046.1 |
Total net sales | External Sales | North America | Financial Services | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 0.0 | 0.0 |
Total net sales | External Sales | Europe |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 688.9 | 650.3 |
Total net sales | External Sales | Europe | Commercial & Industrial Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 295.7 | 284.9 |
Total net sales | External Sales | Europe | Snap-on Tools Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 149.7 | 137.9 |
Total net sales | External Sales | Europe | Repair Systems & Information Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 243.5 | 227.5 |
Total net sales | External Sales | Europe | Financial Services | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 0.0 | 0.0 |
Total net sales | External Sales | All other |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 475.1 | 457.8 |
Total net sales | External Sales | All other | Commercial & Industrial Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 269.4 | 275.1 |
Total net sales | External Sales | All other | Snap-on Tools Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 99.9 | 93.8 |
Total net sales | External Sales | All other | Repair Systems & Information Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 105.8 | 88.9 |
Total net sales | External Sales | All other | Financial Services | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 0.0 | 0.0 |
Financial services revenue |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 378.1 | 349.7 | $ 349.7
Financial services revenue | Commercial & Industrial Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 0.0 | 0.0 |
Financial services revenue | Snap-on Tools Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 0.0 | 0.0 |
Financial services revenue | Repair Systems & Information Group | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | 0.0 | 0.0 |
Financial services revenue | Financial Services | Operating Segments |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | $ 378.1 | $ 349.7 |

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