Annual report pursuant to Section 13 and 15(d)

DEI Document

DEI Document (USD $)
In Millions, except Share data in Thousands
12 Months Ended
Sep. 25, 2011
Oct. 31, 2011
Mar. 27, 2011
Document Information [Line Items]      
Entity Registrant Name QUALCOMM INC/DE    
Entity Central Index Key 0000804328    
Current Fiscal Year End Date --09-25    
Entity Filer Category Large Accelerated Filer    
Document Type 10-K    
Document Period End Date Sep. 25, 2011
Document Fiscal Year Focus 2011    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Common Stock, Shares Outstanding   1,680,984,426  
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Public Float     $ 86,665,135,824