Goodwill and Intangible Assets, Net - Schedule of Changes in Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Goodwill [Roll Forward]
Goodwill, gross		$ 3,720.1	$ 1,674.5
Additions	$ 10.1	1,958.2
Foreign currency translation and other	(243.1)	87.7
Fair value adjustments	(2.3)	(0.4)
Accumulated impairment losses	0.0	0.0
Goodwill	3,484.9	3,720.1
Investor Communication Solutions
Goodwill [Roll Forward]
Goodwill, gross		1,056.1	1,039.5
Additions	0.0	0.0
Foreign currency translation and other	(12.4)	16.5
Fair value adjustments	0.0	0.2
Accumulated impairment losses	0.0	0.0
Goodwill	1,043.7	1,056.1
Global Technology and Operations
Goodwill [Roll Forward]
Goodwill, gross		2,664.0	$ 635.0
Additions	10.1	1,958.2
Foreign currency translation and other	(230.7)	71.2
Fair value adjustments	(2.3)	(0.5)
Accumulated impairment losses	0.0	0.0
Goodwill	$ 2,441.2	$ 2,664.0