Goodwill and Other Intangible Assets - Goodwill by Segment (Details) $ in Millions	9 Months Ended
	Sep. 30, 2020 USD ($)
Goodwill [Roll Forward]
Balance at beginning of period	$ 1,287.7
Acquisitions	4,876.0
Foreign currency translation	42.0
Balance at end of period	6,205.7
Industrial Technologies and Services
Goodwill [Roll Forward]
Balance at beginning of period	865.4
Acquisitions	3,243.5
Foreign currency translation	29.3
Balance at end of period	4,138.2
Precision and Science Technologies
Goodwill [Roll Forward]
Balance at beginning of period	227.5
Acquisitions	1,063.2
Foreign currency translation	8.9
Balance at end of period	1,299.6
High Pressure Solutions
Goodwill [Roll Forward]
Balance at beginning of period	194.8
Acquisitions	0.0
Foreign currency translation	0.0
Balance at end of period	194.8
Specialty Vehicle Technologies
Goodwill [Roll Forward]
Balance at beginning of period	0.0
Acquisitions	569.3
Foreign currency translation	3.8
Balance at end of period	$ 573.1