Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Details)

v3.3.1.900
Segment Information (Details) - USD ($)
$ in Millions
 3 Months Ended
Dec. 27, 2015
Dec. 28, 2014
Sep. 27, 2015
Segment Reporting Information [Line Items]      
Segment Reporting, Factors Used to Identify Entity's Reportable Segments The Company is organized on the basis of products and services. The Company conducts business primarily through two reportable segments: QCT (Qualcomm CDMA Technologies) and QTL (Qualcomm Technology Licensing), and its QSI (Qualcomm Strategic Initiatives) reportable segment makes strategic investments and includes revenues and related costs associated with development contracts with an equity method investee    
Revenues $ 5,775 $ 7,099  
Cost of equipment and services revenues (2,534) (3,047)  
Research and development expense (1,352) (1,352)  
Selling, general and administrative expense (578) (583)  
Other expenses 374 (53)  
Interest expense (74) (1)  
Investment income, net 99 235  
EBT 1,710 2,298  
Total assets 50,229   $ 50,796
Goodwill impairment charge   69  
QCT [Member]      
Segment Reporting Information [Line Items]      
Revenues 4,096 5,242  
EBT 590 1,146  
Total assets 2,132   2,923
QTL [Member]      
Segment Reporting Information [Line Items]      
Revenues 1,607 1,816  
EBT 1,339 1,579  
Total assets 346   438
QSI [Member]      
Segment Reporting Information [Line Items]      
Revenues 9 0  
EBT 359 (1)  
Total assets 924   812
Nonreportable Segments [Member]      
Segment Reporting Information [Line Items]      
Revenues 64 43  
EBT (124) (148)  
Intersegment Eliminations [Member]      
Segment Reporting Information [Line Items]      
Revenues (1) (2)  
EBT 1 (1)  
Reconciling Items [Member]      
Segment Reporting Information [Line Items]      
Revenues 63 41  
Cost of equipment and services revenues (150) (79)  
Research and development expense (216) (210)  
Selling, general and administrative expense (127) (150)  
Other expenses (6) (69)  
Interest expense (70) 0  
Investment income, net 114 231  
EBT (578) (426)  
Total assets 46,827   $ 46,623
Cost of equipment and services revenues [Member] | Reconciling Items [Member]      
Segment Reporting Information [Line Items]      
Unallocated acquisition-related expenses 140 67  
Research and development expenses [Member] | Reconciling Items [Member]      
Segment Reporting Information [Line Items]      
Unallocated acquisition-related expenses 3 4  
Selling, general and administrative expenses [Member] | Reconciling Items [Member]      
Segment Reporting Information [Line Items]      
Unallocated acquisition-related expenses $ 29 $ 12