QUALCOMM Incorporated Annual report pursuant to Section 13 and 15(d)

The Company and Its Significant Accounting Policies Goodwill and Other Intangible Assets (Details)	12 Months Ended
	Sep. 29, 2013	Sep. 30, 2012
Weighted-Average Amortization Periods for Finite-Lived Intangible Assets, by Class [Line Items]
Weighted-average amortization period (in years)	11 years 0 months 0 days	11 years 0 months 0 days
Wireless spectrum [Member]
Weighted-Average Amortization Periods for Finite-Lived Intangible Assets, by Class [Line Items]
Weighted-average amortization period (in years)	14 years 0 months 0 days	5 years 0 months 0 days
Marketing-related [Member]
Weighted-Average Amortization Periods for Finite-Lived Intangible Assets, by Class [Line Items]
Weighted-average amortization period (in years)	9 years 0 months 0 days	9 years 0 months 0 days
Technology-based [Member]
Weighted-Average Amortization Periods for Finite-Lived Intangible Assets, by Class [Line Items]
Weighted-average amortization period (in years)	11 years 0 months 0 days	11 years 0 months 0 days
Customer-related [Member]
Weighted-Average Amortization Periods for Finite-Lived Intangible Assets, by Class [Line Items]
Weighted-average amortization period (in years)	2 years 0 months 0 days	6 years 0 months 0 days