Property, Plant and Equipment, net - Summary of Property, Plant and Equipment, net (Details) - USD ($) $ in Millions	Jun. 30, 2021	Jun. 30, 2020
Property, Plant and Equipment [Line Items]
Total at cost	$ 3,149.9	$ 3,127.6
Less: accumulated depreciation and amortization	1,692.4	1,629.5
Total property, plant, and equipment	1,457.5	1,498.1
Land
Property, Plant and Equipment [Line Items]
Total at cost	36.5	35.1
Buildings and building equipment
Property, Plant and Equipment [Line Items]
Total at cost	537.6	538.5
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total at cost	2,234.6	2,226.4
Capitalized software
Property, Plant and Equipment [Line Items]
Total at cost	221.2	91.7
Construction in progress
Property, Plant and Equipment [Line Items]
Total at cost	$ 120.0	$ 235.9