Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information
6 Months Ended
Jul. 30, 2011
Sep. 01, 2011
Common Stock [Member]
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jul. 30, 2011
Document Fiscal Year Focus 2011  
Document Fiscal Period Focus Q2  
Entity Registrant Name J C PENNEY CO INC  
Entity Central Index Key 0001166126  
Current Fiscal Year End Date --01-28  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   213,315,702