SHARE-BASED COMPENSATION PLANS - Schedule of Share-based Compensation (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Mar. 31, 2023	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 33.6			$ 28.8			$ 100.4	$ 166.8
Share-based compensation expense	32.7	$ 33.6	$ 31.4	29.1	$ 26.9	$ 107.8
Additional Paid-in Capital
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	32.7	$ 33.6	$ 31.4	29.1	$ 26.9	$ 107.8
Equity plan expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	32.7			29.1			97.7	163.8
Equity plan expense | Additional Paid-in Capital
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	32.7			29.1			97.7	163.8
Liability plan (income) expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	0.9			(0.6)			1.2	0.5
Fringe expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 0.0			$ 0.3			$ 1.5	$ 2.5