Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information Document

Document and Entity Information Document
9 Months Ended
Jun. 30, 2013
Jul. 22, 2013
Document Information [Line Items]    
Entity Registrant Name QUALCOMM INC/DE  
Entity Central Index Key 0000804328  
Current Fiscal Year End Date --09-29  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Jun. 30, 2013  
Document Fiscal Year Focus 2013  
Document Fiscal Period Focus Q3  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   1,715,425,829
Entity Well-known Seasoned Issuer Yes  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes