Other, Net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Deconsolidation, Gain (Loss), Amount			$ 22.7
Legacy Legal Liability Overstatement			17.4
Interest Income, Other	$ (1.9)	$ (1.1)	(3.6)	$ (0.4)
Exchange gain (loss)	2.5	4.0	8.5	9.4
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	(3.9)	(7.2)	(9.0)	(25.3)
Other, net	0.0	6.5	21.5	12.6
Other income/(expense), net	$ (4.5)	$ (5.8)	7.6	$ (21.7)
Continuing Operations [Member]
Deconsolidation, Gain (Loss), Amount			$ 0.9