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Segments - Schedule of Net Sales by Segment (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Apr. 04, 2026 | Mar. 29, 2025
Segment Reporting Information [Line Items] |  |
Net sales | $ 1,308.3 | $ 1,243.2
Segment operating earnings | 318.8 | 313.4
Interest expense | (12.4) | (12.4)
Other income (expense) – net | 16.8 | 14.4
Earnings before income taxes | 323.2 | 315.4
Product and Services, excluding Financial Services |  |
Segment Reporting Information [Line Items] |  |
Net sales | 1,207.2 | 1,141.1
Segment cost of goods sold | (598.9) | (562.6)
Gross profit | 608.3 | 578.5
Total segment operating and financial services expenses | (357.5) | (335.4)
Segment operating earnings | 250.8 | 243.1
Product and Services, excluding Financial Services | Commercial & Industrial Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | 308.8 | 276.7
Product and Services, excluding Financial Services | Snap-on Tools Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | 486.0 | 462.9
Product and Services, excluding Financial Services | Repair Systems & Information Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | 412.4 | 401.5
Financial services revenue |  |
Segment Reporting Information [Line Items] |  |
Net sales | 101.1 | 102.1
Total segment operating and financial services expenses | (33.1) | (31.8)
Segment operating earnings | 68.0 | 70.3
Financial services revenue | Financial Services |  |
Segment Reporting Information [Line Items] |  |
Net sales | 101.1 | 102.1
Intersegment Eliminations and Net Sales |  |
Segment Reporting Information [Line Items] |  |
Net sales | (145.1) | (141.6)
Intersegment Eliminations and Net Sales | Product and Services, excluding Financial Services |  |
Segment Reporting Information [Line Items] |  |
Net sales | (145.1) | (141.6)
Segment cost of goods sold | 145.1 | 141.6
Intersegment Eliminations and Net Sales | Product and Services, excluding Financial Services | Commercial & Industrial Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | (72.2) | (67.2)
Intersegment Eliminations and Net Sales | Product and Services, excluding Financial Services | Snap-on Tools Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | 0.0 | 0.0
Intersegment Eliminations and Net Sales | Product and Services, excluding Financial Services | Repair Systems & Information Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | (72.9) | (74.4)
Intersegment Eliminations and Net Sales | Product and Services, excluding Financial Services | Financial Services |  |
Segment Reporting Information [Line Items] |  |
Net sales | 0.0 | 0.0
Intersegment Eliminations and Net Sales | Financial services revenue |  |
Segment Reporting Information [Line Items] |  |
Net sales | 0.0 | 0.0
Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Total segment operating and financial services expenses | (362.0) | (342.6)
Segment operating earnings | 347.4 | 338.0
Operating Segments | Commercial & Industrial Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | 381.0 | 343.9
Operating Segments | Snap-on Tools Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | 486.0 | 462.9
Operating Segments | Repair Systems & Information Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | 485.3 | 475.9
Operating Segments | Financial Services |  |
Segment Reporting Information [Line Items] |  |
Net sales | 101.1 | 102.1
Operating Segments | Product and Services, excluding Financial Services |  |
Segment Reporting Information [Line Items] |  |
Net sales | 1,352.3 | 1,282.7
Segment cost of goods sold | (744.0) | (704.2)
Gross profit | 608.3 | 578.5
Operating Segments | Product and Services, excluding Financial Services | Commercial & Industrial Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | 381.0 | 343.9
Segment cost of goods sold | (227.4) | (197.4)
Gross profit | 153.6 | 146.5
Personnel | (59.5) | (55.9)
Shipping and handling costs | (7.7) | (7.5)
Depreciation and amortization | (1.7) | (1.8)
Provisions for credit losses | 0.0 | 0.0
Other segment expenses | (29.8) | (28.1)
Total segment operating and financial services expenses | (98.7) | (93.3)
Segment operating earnings | 54.9 | 53.2
Operating Segments | Product and Services, excluding Financial Services | Snap-on Tools Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | 486.0 | 462.9
Segment cost of goods sold | (254.4) | (248.4)
Gross profit | 231.6 | 214.5
Personnel | (51.8) | (48.4)
Shipping and handling costs | (19.8) | (18.5)
Depreciation and amortization | (1.9) | (1.8)
Provisions for credit losses | 0.0 | 0.0
Other segment expenses | (53.1) | (53.4)
Total segment operating and financial services expenses | (126.6) | (122.1)
Segment operating earnings | 105.0 | 92.4
Operating Segments | Product and Services, excluding Financial Services | Repair Systems & Information Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | 485.3 | 475.9
Segment cost of goods sold | (262.2) | (258.4)
Gross profit | 223.1 | 217.5
Personnel | (69.0) | (65.1)
Shipping and handling costs | 0.0 | 0.0
Depreciation and amortization | (4.7) | (4.5)
Provisions for credit losses | 0.0 | 0.0
Other segment expenses | (29.9) | (25.8)
Total segment operating and financial services expenses | (103.6) | (95.4)
Segment operating earnings | 119.5 | 122.1
Operating Segments | Product and Services, excluding Financial Services | Financial Services |  |
Segment Reporting Information [Line Items] |  |
Net sales | 0.0 | 0.0
Operating Segments | Financial services revenue |  |
Segment Reporting Information [Line Items] |  |
Net sales | 101.1 | 102.1
Operating Segments | Financial services revenue | Commercial & Industrial Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | 0.0 | 0.0
Operating Segments | Financial services revenue | Snap-on Tools Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | 0.0 | 0.0
Operating Segments | Financial services revenue | Repair Systems & Information Group |  |
Segment Reporting Information [Line Items] |  |
Net sales | 0.0 | 0.0
Operating Segments | Financial services revenue | Financial Services |  |
Segment Reporting Information [Line Items] |  |
Net sales | 101.1 | 102.1
Personnel | (9.5) | (8.8)
Shipping and handling costs | 0.0 | 0.0
Depreciation and amortization | (0.2) | (0.2)
Provisions for credit losses | (18.8) | (19.1)
Other segment expenses | (4.6) | (3.7)
Total segment operating and financial services expenses | (33.1) | (31.8)
Segment operating earnings | 68.0 | 70.3
Corporate operating expenses |  |
Segment Reporting Information [Line Items] |  |
Segment operating earnings | $ (28.6) | $ (24.6)

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