RESTRUCTURING COSTS - Restructuring Costs by Type (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ (1.3)	$ (6.8)	$ (5.4)	$ 1.5
Transformation Plan
Restructuring Cost and Reserve [Line Items]
Restructuring costs	(1.3)	$ (6.8)	(5.4)	$ 1.5	$ (6.5)	$ 73.2	$ 156.6
Cumulative through March 31, 2023	217.9		217.9
Cumulative through March 31, 2023	(217.9)		(217.9)
Transformation Plan | Severance and Employee Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring costs			(5.4)		(6.2)	73.4	151.2
Cumulative through March 31, 2023	213.0		213.0
Cumulative through March 31, 2023	(213.0)		(213.0)
Transformation Plan | Fixed Asset Write-offs
Restructuring Cost and Reserve [Line Items]
Restructuring costs			0.0		0.0	(0.5)	(1.1)
Cumulative through March 31, 2023	1.6		1.6
Cumulative through March 31, 2023	(1.6)		(1.6)
Transformation Plan | Other Exit Costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs			0.0		$ (0.3)	$ 0.3	$ 6.5
Cumulative through March 31, 2023	6.5		6.5
Cumulative through March 31, 2023	$ (6.5)		$ (6.5)