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Litigation and Contingencies - Additional Information (Detail) |  | 1 Months Ended |  | 1 Months Ended
--- | --- | --- | --- | ---
Dec. 31, 2014 USD ($) | Apr. 30, 2007 Ministry Of Justice Of Belgium EUR (€) | Apr. 30, 2008 Ministry Of Justice Of Belgium EUR (€) | Dec. 31, 2014 Lufthansa AG EUR (€) | Dec. 31, 2007 Lufthansa AG EUR (€) | Dec. 31, 2014 Lufthansa AG Dismissed Claims EUR (€) | Aug. 31, 2012 Health Information Management (HIM) USD ($)
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss contingency, damages sought value |  | € 28,000,000 us-gaap_LossContingencyDamagesSoughtValue / us-gaap_LossContingenciesByNatureOfContingencyAxis = uis_MinistryOfJusticeOfBelgiumMember |  |  | € 21,400,000 us-gaap_LossContingencyDamagesSoughtValue / us-gaap_LossContingenciesByNatureOfContingencyAxis = uis_LufthansaAgMember | € 21,400,000 us-gaap_LossContingencyDamagesSoughtValue / us-gaap_LitigationCaseAxis = uis_DismissedClaimMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = uis_LufthansaAgMember | $ 35,000,000 us-gaap_LossContingencyDamagesSoughtValue / us-gaap_LossContingenciesByNatureOfContingencyAxis = uis_SaleOfAssetsMember
Counterclaim against termination of contract |  |  | 18,500,000 uis_ContractTerminationCounterclaimsGovernmentsOtherThanUSFederalGovernment / us-gaap_LossContingenciesByNatureOfContingencyAxis = uis_MinistryOfJusticeOfBelgiumMember |  | 1,500,000 uis_ContractTerminationCounterclaimsGovernmentsOtherThanUSFederalGovernment / us-gaap_LossContingenciesByNatureOfContingencyAxis = uis_LufthansaAgMember | 1,500,000 uis_ContractTerminationCounterclaimsGovernmentsOtherThanUSFederalGovernment / us-gaap_LitigationCaseAxis = uis_DismissedClaimMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = uis_LufthansaAgMember |
Loss contingency, awarded value |  |  |  | 2,200,000 us-gaap_LossContingencyDamagesAwardedValue / us-gaap_LossContingenciesByNatureOfContingencyAxis = uis_LufthansaAgMember |  |  |
Loss contingency, interest awarded |  |  |  | 1,160,000 us-gaap_LitigationSettlementInterest / us-gaap_LossContingenciesByNatureOfContingencyAxis = uis_LufthansaAgMember |  |  |
Amount of judgment awarded to Unisys |  |  |  | 240,000 us-gaap_LitigationSettlementAmount / us-gaap_LossContingenciesByNatureOfContingencyAxis = uis_LufthansaAgMember |  |  |
Unreserved tax-related matters, inclusive of interest | $ 127,000,000 uis_UnreservedTaxRelatedMattersInclusiveOfInterest |  |  |  |  |  |

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- Definition Contract Termination Counterclaims Governments Other Than US Federal Government + References No definition available. + Details
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- Definition Amount of judgment or settlement awarded to (against) the entity in respect of litigation. + References No definition available. + Details
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- Definition Interest expense (income) directly attributable to an award in settlement of litigation. + References No definition available. + Details
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