Document and Entity Information
9 Months Ended
Nov. 01, 2013
Nov. 26, 2013
Document and Entity Information    
Entity Registrant Name DOLLAR GENERAL CORP  
Entity Central Index Key 0000029534  
Document Type 10-Q  
Document Period End Date Nov. 01, 2013  
Amendment Flag false  
Current Fiscal Year End Date --01-31  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   320,255,172
Document Fiscal Year Focus 2013  
Document Fiscal Period Focus Q3