Revenue - Summary of Deferred Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Capitalized Contract Cost [Line Items]
Deferred contract costs	$ 3,154.1	$ 2,965.0
Amortization of deferred contract costs	1,145.3	1,067.6	$ 992.9
Deferred costs to obtain a contract
Capitalized Contract Cost [Line Items]
Deferred contract costs	1,438.6	1,353.0
Deferred costs to fulfill a contract
Capitalized Contract Cost [Line Items]
Deferred contract costs	$ 1,715.5	$ 1,612.0