Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Name:	us-gaap_RestructuringCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

RESTRUCTURING COSTS - Restructuring Costs by Program (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Jun. 30, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 0.0	$ (8.0)	$ 89.7	$ 125.5
Transformation Plan
Restructuring Cost and Reserve [Line Items]
Restructuring costs	4.7	3.5	98.4	142.9	$ 156.6
Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ (4.7)	$ (11.5)	$ (8.7)	$ (17.4)