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v3.10.0.1

Segments - Net Sales by Segment (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 29, 2018 | Sep. 30, 2017 | Sep. 29, 2018 | Sep. 30, 2017 | Dec. 30, 2017 | Dec. 31, 2016
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | $ 980.1 | $ 982.8 | $ 3,035.2 | $ 2,945.8 |  |
Operating earnings | 232.4 | 208.7 | 717.9 | 669.7 | $ 882.1 | $ 861.1
Interest expense | (12.4) | (13.1) | (38.0) | (38.8) | (52.4) | (52.2)
Other income (expense) – net | (1.0) | (1.7) | 1.2 | (6.0) | (7.8) | (7.5)
Earnings before income taxes and equity earnings | 219.0 | 193.9 | 681.1 | 624.9 | 821.9 | 801.4
Commercial & Industrial Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 330.2 |  | 999.6 |  |  |
Snap-on Tools Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 389.8 |  | 1,206.4 |  |  |
Repair Systems & Information Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 314.4 |  | 994.5 |  |  |
Financial Services |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 82.0 |  | 247.0 |  |  |
Operating Segments |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 1,034.4 | 1,040.8 | 3,200.5 | 3,129.6 |  |
Operating earnings | 252.3 | 246.5 | 784.9 | 750.8 |  |
Operating Segments | Commercial & Industrial Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 330.2 | 314.6 | 999.6 | 923.3 |  |
Operating earnings | 53.0 | 50.3 | 148.5 | 135.2 |  |
Operating Segments | Snap-on Tools Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 389.8 | 392.7 | 1,206.4 | 1,215.9 |  |
Operating earnings | 59.3 | 56.4 | 207.2 | 207.4 |  |
Operating Segments | Repair Systems & Information Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 314.4 | 333.5 | 994.5 | 990.4 |  |
Operating earnings | 80.7 | 83.8 | 255.2 | 245.1 |  |
Operating Segments | Financial Services |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Operating earnings | 59.3 | 56.0 | 174.0 | 163.1 |  |
Intersegment eliminations |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | (136.3) | (137.0) | (412.3) | (417.3) |  |
Corporate |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Operating earnings | (19.9) | (37.8) | (67.0) | (81.1) |  |
Product And Services, Excluding Financial Services |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 898.1 | 903.8 | 2,788.2 | 2,712.3 | 3,686.9 | 3,430.4
Operating earnings | 173.1 | 152.7 | 543.9 | 506.6 | $ 664.6 | $ 662.4
Product And Services, Excluding Financial Services | Commercial & Industrial Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 255.7 |  | 781.6 |  |  |
Product And Services, Excluding Financial Services | Snap-on Tools Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 389.8 |  | 1,206.4 |  |  |
Product And Services, Excluding Financial Services | Repair Systems & Information Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 252.6 |  | 800.2 |  |  |
Product And Services, Excluding Financial Services | Financial Services |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 0.0 |  | 0.0 |  |  |
Product And Services, Excluding Financial Services | Operating Segments |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 898.1 |  | 2,788.2 |  |  |
Product And Services, Excluding Financial Services | Operating Segments | Commercial & Industrial Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 330.2 |  | 999.6 |  |  |
Product And Services, Excluding Financial Services | Operating Segments | Snap-on Tools Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 389.8 |  | 1,206.4 |  |  |
Product And Services, Excluding Financial Services | Operating Segments | Repair Systems & Information Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 314.4 |  | 994.5 |  |  |
Product And Services, Excluding Financial Services | Operating Segments | Financial Services |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 0.0 |  | 0.0 |  |  |
Product And Services, Excluding Financial Services | Intersegment eliminations |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | (136.3) |  | (412.3) |  |  |
Product And Services, Excluding Financial Services | Intersegment eliminations | Commercial & Industrial Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 74.5 |  | 218.0 |  |  |
Product And Services, Excluding Financial Services | Intersegment eliminations | Snap-on Tools Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 0.0 |  | 0.0 |  |  |
Product And Services, Excluding Financial Services | Intersegment eliminations | Repair Systems & Information Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 61.8 |  | 194.3 |  |  |
Product And Services, Excluding Financial Services | Intersegment eliminations | Financial Services |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 0.0 |  | 0.0 |  |  |
Financial Service |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 82.0 | 79.0 | 247.0 | 233.5 |  |
Operating earnings | 59.3 | $ 56.0 | 174.0 | $ 163.1 |  |
Financial Service | Commercial & Industrial Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 0.0 |  | 0.0 |  |  |
Financial Service | Snap-on Tools Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 0.0 |  | 0.0 |  |  |
Financial Service | Repair Systems & Information Group |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 0.0 |  | 0.0 |  |  |
Financial Service | Financial Services |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | 82.0 |  | 247.0 |  |  |
Financial Service | Intersegment eliminations |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales | $ 0.0 |  | $ 0.0 |  |  |

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