XML 19 R15.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Document and Entity Information
6 Months Ended
Jul. 02, 2011
Jul. 29, 2011
Document and Entity Information    
Entity Registrant Name SEABOARD CORP /DE/  
Entity Central Index Key 0000088121  
Document Type 10-Q  
Document Period End Date Jul. 02, 2011
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Filer Category Accelerated Filer  
Entity Common Stock, Shares Outstanding   1,215,879
Document Fiscal Year Focus 2011  
Document Fiscal Period Focus Q2