Revenue - Disaggregation by Revenue Type and Geographical Region (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Oct. 02, 2020	Jul. 03, 2020	Apr. 03, 2020	Dec. 31, 2019	Sep. 27, 2019	Jun. 28, 2019	Mar. 29, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Sales	$ 732.3	$ 640.5	$ 362.0	$ 547.2	$ 720.5	$ 659.3	$ 712.1	$ 659.7	$ 2,282.0	$ 2,751.6	$ 2,844.5
Consumables
Disaggregation of Revenue [Line Items]
Sales									1,594.1	1,869.9	1,914.8
Equipment
Disaggregation of Revenue [Line Items]
Sales									687.9	881.7	$ 929.7
North America
Disaggregation of Revenue [Line Items]
Sales									1,097.6	1,317.6
Western Europe
Disaggregation of Revenue [Line Items]
Sales									512.3	603.7
Other developed markets
Disaggregation of Revenue [Line Items]
Sales									159.6	174.3
Emerging markets
Disaggregation of Revenue [Line Items]
Sales									512.5	656.0
Specialty Products & Technologies
Disaggregation of Revenue [Line Items]
Sales									1,117.3	1,342.7
Specialty Products & Technologies | North America
Disaggregation of Revenue [Line Items]
Sales									503.3	602.7
Specialty Products & Technologies | Western Europe
Disaggregation of Revenue [Line Items]
Sales									259.2	315.6
Specialty Products & Technologies | Other developed markets
Disaggregation of Revenue [Line Items]
Sales									85.4	92.8
Specialty Products & Technologies | Emerging markets
Disaggregation of Revenue [Line Items]
Sales									269.4	331.6
Equipment & Consumables
Disaggregation of Revenue [Line Items]
Sales									1,164.7	1,408.9
Equipment & Consumables | North America
Disaggregation of Revenue [Line Items]
Sales									594.3	714.9
Equipment & Consumables | Western Europe
Disaggregation of Revenue [Line Items]
Sales									253.1	288.1
Equipment & Consumables | Other developed markets
Disaggregation of Revenue [Line Items]
Sales									74.2	81.5
Equipment & Consumables | Emerging markets
Disaggregation of Revenue [Line Items]
Sales									$ 243.1	$ 324.4