v2.4.0.6
Document and Entity Information
3 Months Ended
Mar. 30, 2013
Apr. 26, 2013
Document and Entity Information    
Entity Registrant Name SPX CORP  
Entity Central Index Key 0000088205  
Document Type 10-Q  
Document Period End Date Mar. 30, 2013  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   46,793,441
Document Fiscal Year Focus 2013  
Document Fiscal Period Focus Q1