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Divestitures (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2023 | Jun. 30, 2024 | Sep. 30, 2024 | Jul. 10, 2023
Long Lived Assets Held-for-sale [Line Items] |  |  |  |
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration] | Gain (Loss) on Sale of Assets and Asset Impairment Charges |  |  |
Transaction Data System Investment [Member] |  |  |  |
Long Lived Assets Held-for-sale [Line Items] |  |  |  |
Equity Method Investments, Fair Value Disclosure |  |  |  | $ 147
Equity Method Investment, Ownership Percentage |  |  | 16.00% |
Outcomes Divestiture |  |  |  |
Long Lived Assets Held-for-sale [Line Items] |  |  |  |
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal |  | $ 53 |  |

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