Goodwill and Intangible Assets, Net - Schedule of Intangible Assets at Cost and Accumulated Amortization (Details) - USD ($) $ in Millions	Jun. 30, 2020	Jun. 30, 2019
Finite-Lived Intangible Assets [Line Items]
Original Cost	$ 1,208.1	$ 1,038.7
Accumulated Amortization	(624.4)	(482.5)
Intangible Assets, net	583.8	556.2
Software licenses
Finite-Lived Intangible Assets [Line Items]
Original Cost	137.9	125.8
Accumulated Amortization	(115.7)	(101.7)
Intangible Assets, net	22.2	24.1
Acquired software technology
Finite-Lived Intangible Assets [Line Items]
Original Cost	196.8	164.7
Accumulated Amortization	(109.7)	(85.5)
Intangible Assets, net	87.1	79.3
Customer contracts and lists
Finite-Lived Intangible Assets [Line Items]
Original Cost	644.5	549.6
Accumulated Amortization	(274.2)	(207.4)
Intangible Assets, net	370.3	342.1
Acquired intellectual property
Finite-Lived Intangible Assets [Line Items]
Original Cost	136.6	135.0
Accumulated Amortization	(90.9)	(63.8)
Intangible Assets, net	45.7	71.2
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Original Cost	92.3	63.6
Accumulated Amortization	(34.0)	(24.1)
Intangible Assets, net	$ 58.3	$ 39.5