Corporate Investments and Funds Held for Clients - Classification of Corporate Investments on the Consolidated Balance Sheet (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2024 |
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| Corporate Investments And Funds Held For Clients [Abstract] | |||
| Cash and cash equivalents | $ 4,230.1 | $ 3,347.8 | $ 2,913.4 |
| Short-term marketable securities (a) | 0.0 | 4,498.8 | |
| Long-term marketable securities | 138.6 | 0.0 | |
| Total corporate investments | $ 4,368.7 | $ 7,846.6 |
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- Definition Corporate Investments and Funds Held for Clients [Abstract] No definition available.
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- Definition Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Sum of the carrying amounts as of the balance sheet date of all investments. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of investment in marketable security, classified as current. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of investment in marketable security, classified as noncurrent. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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