Segment Information Sales by Major Product Group (Detail) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 31, 2017 |
Dec. 31, 2016 |
Sep. 30, 2016 |
Jul. 01, 2016 |
Apr. 01, 2016 |
Dec. 31, 2015 |
Oct. 02, 2015 |
Jul. 03, 2015 |
Apr. 03, 2015 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Revenue from External Customer [Line Items] | ||||||||||||
| Sales | $ 1,535.2 | $ 1,627.1 | $ 1,567.4 | $ 1,555.1 | $ 1,474.7 | $ 1,575.8 | $ 1,524.6 | $ 1,564.9 | $ 1,513.5 | $ 6,224.3 | $ 6,178.8 | $ 6,337.2 |
| Professional Tools and Equipment [Member] | ||||||||||||
| Revenue from External Customer [Line Items] | ||||||||||||
| Sales | 4,005.9 | 3,959.7 | 4,020.8 | |||||||||
| Industrial Automation, Controls and Sensors [Member] | ||||||||||||
| Revenue from External Customer [Line Items] | ||||||||||||
| Sales | 1,138.2 | 1,170.5 | 1,306.1 | |||||||||
| Franchise Distribution [Member] | ||||||||||||
| Revenue from External Customer [Line Items] | ||||||||||||
| Sales | 618.1 | 590.4 | 535.0 | |||||||||
| All Other Products and Services [Member] | ||||||||||||
| Revenue from External Customer [Line Items] | ||||||||||||
| Sales | $ 462.1 | $ 458.2 | $ 475.3 | |||||||||