Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Details)

v3.10.0.1
Segment Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 24, 2018
Jun. 25, 2017
Jun. 24, 2018
Jun. 25, 2017
Sep. 24, 2017
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 and has three reportable segments.    
Revenues $ 5,599 $ 5,371 $ 16,928 $ 16,387  
Earnings before taxes 956 858 1,288 2,586  
Total assets 62,090   62,090   $ 65,486
Cost of revenues (2,491) (2,488) (7,394) (7,140)  
Research and development expense (1,416) (1,391) (4,237) (4,087)  
Selling, general and administrative expense (655) (710) (2,297) (1,917)  
Other expenses (112) (9) (1,605) (962)  
Interest expense (212) (133) (561) (330)  
Investment and other income, net 243 218 454 635  
QCT [Member]          
Segment Reporting Information [Line Items]          
Revenues 4,087 4,052 12,635 11,829  
Earnings before taxes 607 575 2,170 1,774  
Total assets 3,063   3,063   3,830
QTL [Member]          
Segment Reporting Information [Line Items]          
Revenues 1,465 1,172 4,025 5,232  
Earnings before taxes 1,049 854 2,786 4,346  
Total assets 1,801   1,801   1,735
QSI [Member]          
Segment Reporting Information [Line Items]          
Revenues 20 56 80 70  
Earnings before taxes (7) 55 44 38  
Total assets 1,153   1,153   1,037
Other Segments [Member]          
Segment Reporting Information [Line Items]          
Revenues 77 79 238 218  
Earnings before taxes (90) (96) (276) (283)  
Reconciling Items [Member]          
Segment Reporting Information [Line Items]          
Revenues 27 91 188 (744)  
Earnings before taxes (693) (626) (3,712) (3,572)  
Total assets 56,073   56,073   $ 58,884
Cost of revenues (135) (188) (362) (402)  
Research and development expense (293) (257) (844) (803)  
Selling, general and administrative expense (60) (197) (480) (481)  
Other expenses (112) (9) (1,605) (962)  
Interest expense (208) (130) (556) (325)  
Investment and other income, net 255 239 $ 461 646  
Reconciling Items [Member] | Corporate, Non-Segment [Member]          
Segment Reporting Information [Line Items]          
Segment reporting, change in measurement methods     In fiscal 2018, all of the costs related to pre-commercial research and development of 5G (fifth generation) technology, of which $124 million and $340 million was recorded in the three and nine months ended June 24, 2018, respectively, were included in unallocated corporate research and development expenses, whereas similar costs related to the research and development of other technology, including 3G (third generation) and 4G (fourth generation) technology, were recorded in the QCT and QTL segments.    
Reconciling Items [Member] | Change of Segment Methodology [Member]          
Segment Reporting Information [Line Items]          
Research and development expense (124)   $ (340)    
Cost of revenues [Member] | Reconciling Items [Member]          
Segment Reporting Information [Line Items]          
Unallocated acquisition-related expenses 127 139 335 330  
Research and development expenses [Member] | Reconciling Items [Member]          
Segment Reporting Information [Line Items]          
Unallocated acquisition-related expenses 2 3 5 18  
Selling, general and administrative expenses [Member] | Reconciling Items [Member]          
Segment Reporting Information [Line Items]          
Unallocated acquisition-related expenses 20 77 310 195  
Blackberry [Member] | Reconciling Items [Member]          
Segment Reporting Information [Line Items]          
Revenues 0 12 0 (962)  
Business arrangement that resolved a legal dispute [Member] | Reconciling Items [Member]          
Segment Reporting Information [Line Items]          
Revenues $ (50) $ 0 $ (50) $ 0