v3.8.0.1

Segment Information Sales by Major Product Group (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Sep. 29, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jul. 01, 2016 | Apr. 01, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales | $ 1,806.7 | $ 1,685.3 | $ 1,628.8 | $ 1,535.2 | $ 1,627.1 | $ 1,567.4 | $ 1,555.1 | $ 1,474.7 | $ 6,656.0 | $ 6,224.3 | $ 6,178.8
Professional Tools and Equipment [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | 4,352.5 | 4,005.9 | 3,959.7
Industrial Automation, Controls and Sensors [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | 1,207.7 | 1,138.2 | 1,170.5
Franchise Distribution [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | 626.2 | 618.1 | 590.4
All Other Products and Services [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | $ 469.6 | $ 462.1 | $ 458.2

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