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Revenue - Summary of Deferred Costs (Details) - USD ($) $ in Millions | 12 Months Ended
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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 |

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