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Discontinued Operations - Schedule of Settlement Assets of Disposal Group (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Settlement assets |  |
Settlement deposits | $ 0 | $ 56
Merchant float | 792 | 2,594
Settlement receivables | 99 | 4,077
Total Settlement assets | $ 891 | $ 6,727

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- Definition Disposal Group, Including Discontinued Operation, Settlement Assets + References No definition available. + Details
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- Definition Disposal Group, Including Discontinued Operation, Settlement Assets + References No definition available. + Details
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- Definition Disposal Group, Including Discontinued Operation, Settlement Deposits + References No definition available. + Details
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- Definition Disposal Group, Including Discontinued Operation, Settlement Receivables + References No definition available. + Details
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Namespace Prefix: | fis_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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