Goodwill and Intangible Assets, Net - Schedule of Intangible Assets at Cost and Accumulated Amortization (Details) - USD ($) $ in Millions	Jun. 30, 2023	Jun. 30, 2022
Finite-Lived Intangible Assets [Line Items]
Original Cost	$ 2,550.2	$ 2,160.7
Accumulated Amortization	(1,082.9)	(1,083.6)
Intangible Assets, net	1,467.2	1,077.1
Software licenses
Finite-Lived Intangible Assets [Line Items]
Original Cost	183.7	199.2
Accumulated Amortization	(154.2)	(153.3)
Intangible Assets, net	29.5	45.9
Acquired software technology
Finite-Lived Intangible Assets [Line Items]
Original Cost	292.4	397.6
Accumulated Amortization	(165.5)	(211.3)
Intangible Assets, net	126.9	186.3
Customer contracts and lists
Finite-Lived Intangible Assets [Line Items]
Original Cost	1,150.8	1,273.0
Accumulated Amortization	(558.5)	(519.0)
Intangible Assets, net	592.4	754.0
Acquired intellectual property
Finite-Lived Intangible Assets [Line Items]
Original Cost	136.6	136.6
Accumulated Amortization	(136.6)	(131.9)
Intangible Assets, net	0.0	4.7
Internal use software
Finite-Lived Intangible Assets [Line Items]
Original Cost	762.9	131.2
Accumulated Amortization	(44.8)	(45.4)
Intangible Assets, net	718.1	85.8
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Original Cost	23.7	23.1
Accumulated Amortization	(23.3)	(22.6)
Intangible Assets, net	$ 0.4	$ 0.4