Property, Plant and Equipment (Schedule of Major Classes of Property, Plant and Equipment) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 4,039.7	$ 3,835.2
Accumulated depreciation	(2,233.5)	(2,104.4)
Total	1,806.2	1,730.8
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	60.6	53.2
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	921.2	870.7
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,210.0	2,079.9
Software [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 847.9	$ 831.4