Goodwill and Intangible Assets, net - Components Of Finite-Lived Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2022	Jun. 30, 2021
Finite-Lived Intangible Assets [Line Items]
Total - gross	$ 4,571.5	$ 4,252.0
Total - accumulated amortization	(3,244.2)	(3,041.9)
Intangible assets, net	1,327.3	1,210.1
Software and software licenses
Finite-Lived Intangible Assets [Line Items]
Total - gross	3,229.8	2,950.8
Total - accumulated amortization	(2,221.8)	(2,090.4)
Customer contracts and lists
Finite-Lived Intangible Assets [Line Items]
Total - gross	1,100.4	1,062.2
Total - accumulated amortization	(790.0)	(723.4)
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Total - gross	241.3	239.0
Total - accumulated amortization	$ (232.4)	$ (228.1)