Goodwill and Intangible Assets, net - Components Of Finite-Lived Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2023	Jun. 30, 2022
Finite-Lived Intangible Assets [Line Items]
Total - gross	$ 4,866.4	$ 4,617.2
Total - accumulated amortization	(3,506.1)	(3,284.1)
Intangible assets, net	1,360.3	1,333.1
Software and software licenses
Finite-Lived Intangible Assets [Line Items]
Total - gross	3,493.2	3,271.3
Total - accumulated amortization	(2,390.1)	(2,251.9)
Customer contracts and lists
Finite-Lived Intangible Assets [Line Items]
Total - gross	1,131.5	1,104.7
Total - accumulated amortization	(879.4)	(798.9)
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Total - gross	241.7	241.2
Total - accumulated amortization	$ (236.6)	$ (233.3)