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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