Restructuring - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		18 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021
Restructuring Costs [Abstract]
Restructuring charges	$ 6.8	$ 29.4	$ 9.2	$ 67.4
Restructuring Program 2020 to 2022
Restructuring Costs [Abstract]
Expected restructuring cost	350.0		350.0		$ 350.0
Restructuring Program 2020 to 2022 | Other Operating Expense, Net
Restructuring Costs [Abstract]
Restructuring charges	6.8		9.2
Restructuring Program 2020 to 2022 | Other Operating Expense, Net | Corporate
Restructuring Costs [Abstract]
Restructuring charges	4.5		4.9		10.9
Restructuring Program 2020 to 2022 | Other Operating Expense, Net | Industrial Technologies and Services
Restructuring Costs [Abstract]
Restructuring charges	2.5		4.2		74.5
Restructuring Program 2020 to 2022 | Other Operating Expense, Net | Precision and Science Technologies
Restructuring Costs [Abstract]
Restructuring charges	$ (0.2)		$ 0.1		$ 7.0