Other (Income)/Expense, Net - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Other Income (Expense) [Line Items]
Impairment of assets	$ 19.9	$ 29.9	$ 12.1
Impairment of intangible assets	10.5		12.1
Operating lease, impairment loss	9.4
Gain on sale of investment	$ 1.7	0.2	$ 15.7
United States
Other Income (Expense) [Line Items]
Operating lease, impairment loss		4.6
Property, Plant and Equipment
Other Income (Expense) [Line Items]
Impairment of assets		$ 25.3