XML 23 R15.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Document and Entity Information
3 Months Ended
Apr. 29, 2011
May 23, 2011
Document and Entity Information    
Entity Registrant Name DOLLAR GENERAL CORP  
Entity Central Index Key 0000029534  
Document Type 10-Q  
Document Period End Date Apr. 29, 2011
Amendment Flag false  
Current Fiscal Year End Date --02-03  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   341,535,481
Document Fiscal Year Focus 2011  
Document Fiscal Period Focus Q1