Annual report pursuant to Section 13 and 15(d)

Summarized Quarterly Data (Unaudited) (Details)

v3.19.3
Summarized Quarterly Data (Unaudited) (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 12 Months Ended
Sep. 29, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 30, 2018
Sep. 30, 2018
Jun. 24, 2018
Mar. 25, 2018
Dec. 24, 2017
Sep. 29, 2019
Sep. 30, 2018
Sep. 24, 2017
Quarterly Financial Data [Abstract]                      
Revenues (2) $ 4,814 [1] $ 9,635 $ 4,982 $ 4,842 $ 5,778 [1] $ 5,577 [1] $ 5,220 [1] $ 6,035 [1] $ 24,273 $ 22,611 $ 22,258
Operating income (loss) 701 [1] 5,317 940 710 (679) [1] 903 [1] 400 [1] (4) [1] 7,667 621 2,581
Net income (loss) $ 506 $ 2,149 $ 663 $ 1,068 $ (513) [1] $ 1,202 [1] $ 330 [1] $ (5,983) [1] $ 4,386 $ (4,964) $ 2,444
Basic earnings per share or attributable to Qualcomm - Net income $ 0.42 $ 1.77 $ 0.55 $ 0.88 $ (0.36) $ 0.81 $ 0.22 $ (4.05) $ 3.63 $ (3.39) $ 1.66
Diluted earnings per share or attributable to Qualcomm - Net income $ 0.42 $ 1.75 $ 0.55 $ 0.87 $ (0.36) $ 0.81 $ 0.22 $ (4.05) $ 3.59 $ (3.39) $ 1.64
Loss Contingencies [Line Items]                      
Licensing Revenues                 $ 9,662 $ 5,211 $ 5,611
Income Tax Expense (Benefit)                 3,095 5,356 543
Icera Complaint to EC [Member]                      
Loss Contingencies [Line Items]                      
Loss Contingency, Loss in Period   $ 275             275    
EC [Member]                      
Loss Contingencies [Line Items]                      
Loss Contingency, Loss in Period               $ 1,200   1,200  
NXP [Member]                      
Loss Contingencies [Line Items]                      
NXP termination fee                   2,000  
U.S. Tax Cuts and Jobs Act Effective 2018 [Member]                      
Loss Contingencies [Line Items]                      
Income Tax Expense (Benefit)       $ (570)       $ 5,900   5,700  
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability                 0 443 0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil) | Apple [Member]                      
Loss Contingencies [Line Items]                      
Licensing Revenues   $ 4,700                  
Distributed Intellectual Property [Member]                      
Loss Contingencies [Line Items]                      
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability                 $ 2,472 $ 0 $ 0
[1]
Amounts, other than per share amounts, are rounded to millions each quarter. Therefore, the sum of the quarterly amounts may not equal the annual amounts reported.