Revenue (Significant Changes in Contract Assets and Liabilities) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Change in Contract with Customer, Liability [Abstract]
Balance at beginning of period	$ 172.0	$ 104.0
Advance consideration received	57.1	33.9
Foreign currency translation	(2.6)	(4.4)
Balance at end of period	186.3	111.6
Extended Warrant Contracts, Maintenance Services, Technology Services
Change in Contract with Customer, Liability [Abstract]
Revenue recognized during the period for extended warranty contracts	(13.0)	(10.1)
Grain storage and protein production systems
Change in Contract with Customer, Liability [Abstract]
Revenue recognized during the period for extended warranty contracts	$ (27.2)	$ (11.8)