Revenue (Significant Changes in Contract Assets and Liabilities) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Change in Contract with Customer, Liability [Abstract]
Balance at beginning of period	$ 118.7	$ 88.0	$ 104.0	$ 76.8
Advance consideration received	57.6	45.2	127.2	108.9
Foreign currency translation	4.7	(2.2)	0.9	(2.1)
Balance at end of period	144.9	90.3	144.9	90.3
Extended Warrant Contracts, Maintenance Services, Technology Services
Change in Contract with Customer, Liability [Abstract]
Revenue recognized during the period for extended warranty contracts	(11.5)	(8.7)	(33.6)	(22.7)
Grain storage and protein production systems
Change in Contract with Customer, Liability [Abstract]
Revenue recognized during the period for extended warranty contracts	$ (24.6)	$ (32.0)	$ (53.6)	$ (70.6)