Property, Plant and Equipment - Summary of Property, Plant and Equipment(Details) - USD ($) $ in Millions	Jun. 30, 2018	Jun. 30, 2017
Property, Plant and Equipment [Line Items]
Total at cost	$ 2,747.4	$ 2,668.5
Less: accumulated depreciation and amortization	1,434.0	1,351.7
Total property, plant, and equipment	1,313.4	1,316.8
Land
Property, Plant and Equipment [Line Items]
Total at cost	34.8	34.1
Buildings and building equipment
Property, Plant and Equipment [Line Items]
Total at cost	500.0	495.7
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total at cost	2,129.0	2,082.4
Construction in progress
Property, Plant and Equipment [Line Items]
Total at cost	$ 83.6	$ 56.3