Revenue - Disaggregation by Revenue Type and Geographical Region (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2021	Jul. 03, 2020	Jul. 02, 2021	Jul. 03, 2020
Disaggregation of Revenue [Line Items]
Sales	$ 740.1	$ 362.0	$ 1,449.3	$ 909.2
Consumables
Disaggregation of Revenue [Line Items]
Sales	534.5	255.3	1,049.4	633.2
Equipment
Disaggregation of Revenue [Line Items]
Sales	205.6	106.7	399.9	276.0
North America
Disaggregation of Revenue [Line Items]
Sales	359.5	162.1	701.5	431.8
Western Europe
Disaggregation of Revenue [Line Items]
Sales	174.2	73.8	348.2	194.4
Other developed markets
Disaggregation of Revenue [Line Items]
Sales	48.1	28.0	95.9	65.7
Emerging markets
Disaggregation of Revenue [Line Items]
Sales	158.3	98.1	303.7	217.3
Specialty Products & Technologies
Disaggregation of Revenue [Line Items]
Sales	386.2	184.6	752.7	457.2
Specialty Products & Technologies | North America
Disaggregation of Revenue [Line Items]
Sales	173.3	77.9	336.7	206.2
Specialty Products & Technologies | Western Europe
Disaggregation of Revenue [Line Items]
Sales	96.7	41.0	191.5	103.7
Specialty Products & Technologies | Other developed markets
Disaggregation of Revenue [Line Items]
Sales	25.2	15.8	50.8	37.0
Specialty Products & Technologies | Emerging markets
Disaggregation of Revenue [Line Items]
Sales	91.0	49.9	173.7	110.3
Equipment & Consumables
Disaggregation of Revenue [Line Items]
Sales	353.9	177.4	696.6	452.0
Equipment & Consumables | North America
Disaggregation of Revenue [Line Items]
Sales	186.2	84.2	364.8	225.6
Equipment & Consumables | Western Europe
Disaggregation of Revenue [Line Items]
Sales	77.5	32.8	156.7	90.7
Equipment & Consumables | Other developed markets
Disaggregation of Revenue [Line Items]
Sales	22.9	12.2	45.1	28.7
Equipment & Consumables | Emerging markets
Disaggregation of Revenue [Line Items]
Sales	$ 67.3	$ 48.2	$ 130.0	$ 107.0