Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information Document

v3.10.0.1
Document and Entity Information Document - shares
3 Months Ended
Dec. 30, 2018
Jan. 28, 2019
Document Information [Line Items]    
Entity Registrant Name QUALCOMM INC/DE  
Entity Registrant State of Incorporation Delaware  
Entity Address 5775 Morehouse Dr.  
Entity City San Diego  
Entity State California  
Entity Zip Code 92121-1714  
Entity Phone Number (858) 587-1121  
Entity Employer ID 953685934  
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 Dec. 30, 2018  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   1,210,305,693
Entity Current Reporting Status Yes  
Entity Emerging Growth Company false  
Entity Small Business false