Annual report pursuant to Section 13 and 15(d)

Summarized Quarterly Data (Unaudited) (Details)

v3.8.0.1
Summarized Quarterly Data (Unaudited) (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 12 Months Ended
Sep. 24, 2017
 [1]
Jun. 25, 2017
 [1]
Mar. 26, 2017
 [1]
Dec. 25, 2016
 [1]
Sep. 25, 2016
Jun. 26, 2016
Mar. 27, 2016
Dec. 27, 2015
Sep. 24, 2017
Sep. 25, 2016
Sep. 27, 2015
Quarterly Financial Data [Abstract]                      
Revenues $ 5,905 $ 5,371 $ 5,016 $ 5,999 $ 6,184 [1] $ 6,044 [1] $ 5,551 [1] $ 5,775 [1] $ 22,291 $ 23,554 $ 25,281
Operating income (2) 333 [2] 773 [2] 729 [2] 778 [2] 1,804 [1] 1,592 [1] 1,415 [1] 1,685 [1] 2,614 6,495 5,776
Net income 168 [2] 865 [2] 749 [2] 681 [2] 1,599 [1] 1,443 [1] 1,164 [1] 1,496 [1] 2,465 5,702 5,268
Net income attributable to Qualcomm $ 168 $ 866 $ 749 $ 682 $ 1,599 [1] $ 1,444 [1] $ 1,164 [1] $ 1,498 [1] $ 2,466 $ 5,705 $ 5,271
Basic earnings per share attributable to Qualcomm - Net income $ 0.11 [3] $ 0.59 [3] $ 0.51 [3] $ 0.46 [3] $ 1.08 [3] $ 0.98 [3] $ 0.78 [3] $ 1.00 [3] $ 1.67 $ 3.84 $ 3.26
Diluted earnings per share attributable to Qualcomm - Net income $ 0.11 [3] $ 0.58 [3] $ 0.50 [3] $ 0.46 [3] $ 1.07 [3] $ 0.97 [3] $ 0.78 [3] $ 0.99 [3] $ 1.65 $ 3.81 $ 3.22
TFTC [Member]                      
Loss Contingencies [Line Items]                      
Loss Contingency, Loss in Period                 $ 778    
[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.
[2] Operating income and net income in the fourth quarter of fiscal 2017 were negatively impacted by a $778 million charge related to the TFTC fine.
[3] Earnings per share attributable to Qualcomm are computed independently for each quarter and the full year based upon respective average shares outstanding. Therefore, the sum of the quarterly earnings per share amounts may not equal the annual amounts reported.