v2.4.0.6
Document and Entity Information
3 Months Ended
Mar. 31, 2013
Document Information [Line Items]  
Document Type 10-Q
Amendment Flag false
Document Period End Date Mar. 31, 2013
Document Fiscal Year Focus 2013
Document Fiscal Period Focus Q1
Trading Symbol UIS
Entity Registrant Name UNISYS CORP
Entity Central Index Key 0000746838
Current Fiscal Year End Date --12-31
Entity Filer Category Large Accelerated Filer
Entity Common Stock, Shares Outstanding 44,135,165