Goodwill and Intangible Assets, Net - Schedule of Intangible Assets at Cost and Accumulated Amortization (Details) - USD ($) $ in Millions	Jun. 30, 2021	Jun. 30, 2020
Finite-Lived Intangible Assets [Line Items]
Original Cost	$ 2,236.8	$ 1,208.1
Accumulated Amortization	(811.8)	(624.4)
Intangible Assets, net	1,425.0	583.8
Software licenses
Finite-Lived Intangible Assets [Line Items]
Original Cost	179.3	137.9
Accumulated Amortization	(129.1)	(115.7)
Intangible Assets, net	50.2	22.2
Acquired software technology
Finite-Lived Intangible Assets [Line Items]
Original Cost	427.3	196.8
Accumulated Amortization	(149.6)	(109.7)
Intangible Assets, net	277.7	87.1
Customer contracts and lists
Finite-Lived Intangible Assets [Line Items]
Original Cost	1,375.7	644.5
Accumulated Amortization	(373.1)	(274.2)
Intangible Assets, net	1,002.6	370.3
Acquired intellectual property
Finite-Lived Intangible Assets [Line Items]
Original Cost	136.6	136.6
Accumulated Amortization	(118.0)	(90.9)
Intangible Assets, net	18.7	45.7
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Original Cost	117.9	92.3
Accumulated Amortization	(42.1)	(34.0)
Intangible Assets, net	$ 75.8	$ 58.3