XML 47 R61.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Sale of Business - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 0 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 30, 2012 | Dec. 31, 2012
Business Acquisitions and Dispositions [Line Items] |  |
Pretax gain on sale of divested business | $ 10.6 us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax |
Services and Technology |  |
Business Acquisitions and Dispositions [Line Items] |  |
Pretax gain on sale of divested business |  | 7.6 us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax / us-gaap_StatementBusinessSegmentsAxis = uis_ServicesAndTechnologyMember
Revenue from divested business |  | $ 47.6 us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue / us-gaap_StatementBusinessSegmentsAxis = uis_ServicesAndTechnologyMember

X
- Details
Name: | uis_BusinessAcquisitionsAndDispositionsLineItems
Namespace Prefix: | uis_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of gain (loss), before tax expense or benefit and not previously recognized, resulting from the sale of a business component. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
Name: | us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
Name: | us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=uis_ServicesAndTechnologyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |