Revenue (Significant Changes in Contract Assets and Liabilities) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Change in Contract with Customer, Liability [Abstract]
Balance at beginning of period	$ 111.6	$ 84.5	$ 104.0	$ 76.8
Advance consideration received	35.7	38.3	69.6	63.7
Foreign currency translation	0.6	0.3	(3.8)	0.1
Balance at end of period	118.7	88.0	118.7	88.0
Extended Warrant Contracts, Maintenance Services, Technology Services
Change in Contract with Customer, Liability [Abstract]
Revenue recognized during the period for extended warranty contracts	(12.0)	(7.9)	(22.1)	(14.0)
Grain storage and protein production systems
Change in Contract with Customer, Liability [Abstract]
Revenue recognized during the period for extended warranty contracts	$ (17.2)	$ (27.2)	$ (29.0)	$ (38.6)