Leases - Right of Use Assets and Operating Lease Liabilities (Details) - USD ($) $ in Millions	9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Jun. 30, 2022
Leases [Abstract]
Cash paid for operating lease liabilities	$ 95.8	$ 96.1
Operating lease ROU assets obtained in exchange for new operating lease liabilities	$ 43.6	$ 74.9
Weighted-average remaining lease term (in years)	6 years		6 years
Weighted-average discount rate	2.40%		2.20%
Current operating lease liability	$ 93.4		$ 95.1