Annual report pursuant to Section 13 and 15(d)

Summarized Quarterly Data (Unaudited) (Details)

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Summarized Quarterly Data (Unaudited) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
 3 Months Ended 12 Months Ended
Sep. 30, 2012
Jun. 24, 2012
Mar. 25, 2012
Dec. 25, 2011
Sep. 25, 2011
Jun. 26, 2011
Mar. 27, 2011
Dec. 26, 2010
Sep. 30, 2012
Sep. 25, 2011
Sep. 26, 2010
Summarized Quarterly Data (Unaudited) [Abstract]                      
Revenues $ 4,871 [1] $ 4,626 [1] $ 4,943 [1] $ 4,681 [1] $ 4,117 [1] $ 3,623 [1] $ 3,870 [1] $ 3,348 [1] $ 19,121 $ 14,957 $ 10,982
Operating income 1,235 [1] 1,382 [1] 1,514 [1] 1,551 [1] 1,238 [1] 1,113 [1] 1,430 [1] 1,247 [1] 5,682 5,026 3,727
Income from continuing operations 1,240 [1] 1,206 [1] 1,438 [1] 1,400 [1] 1,055 [1] 985 [1] 1,264 [1] 1,252 [1] 5,283 4,555 3,520
Discontinued operations, net of tax 23 [1] (3) [1] 761 [1] (5) [1] (6) [1] 44 [1] (269) [1] (82) [1] 776 (313) (273)
Net income 1,263 [1] 1,203 [1] 2,199 [1] 1,395 [1] 1,049 [1] 1,029 [1] 995 [1] 1,170 [1] 6,059 [2] 4,242 [2] 3,247
Net income attributable to Qualcomm $ 1,271 [1] $ 1,207 [1] $ 2,230 [1] $ 1,401 [1] $ 1,056 [1] $ 1,035 [1] $ 999 [1] $ 1,170 [1] $ 6,109 $ 4,260 $ 3,247
Basic earnings (loss) per share attributable to Qualcomm:                      
Continuing operations $ 0.73 [3] $ 0.70 [3] $ 0.86 [3] $ 0.83 [3] $ 0.63 [3] $ 0.59 [3] $ 0.76 [3] $ 0.77 [3] $ 3.14 $ 2.76 $ 2.15
Discontinued operations $ 0.02 [3] $ 0.00 [3] $ 0.45 [3] $ 0.00 [3] $ 0.00 [3] $ 0.03 [3] $ (0.16) [3] $ (0.05) [3] $ 0.45 $ (0.19) $ (0.17)
Net income $ 0.75 [3] $ 0.70 [3] $ 1.31 [3] $ 0.83 [3] $ 0.63 [3] $ 0.62 [3] $ 0.60 [3] $ 0.72 [3] $ 3.59 $ 2.57 $ 1.98
Diluted earnings (loss) per share attributable to Qualcomm:                      
Continuing operations $ 0.72 [3] $ 0.69 [3] $ 0.84 [3] $ 0.81 [3] $ 0.62 [3] $ 0.58 [3] $ 0.75 [3] $ 0.76 [3] $ 3.06 $ 2.70 $ 2.12
Discontinued operations $ 0.01 [3] $ 0.00 [3] $ 0.44 [3] $ 0.00 [3] $ 0.00 [3] $ 0.03 [3] $ (0.16) [3] $ (0.05) [3] $ 0.45 $ (0.18) $ (0.16)
Net income $ 0.73 [3] $ 0.69 [3] $ 1.28 [3] $ 0.81 [3] $ 0.62 [3] $ 0.61 [3] $ 0.59 [3] $ 0.71 [3] $ 3.51 $ 2.52 $ 1.96
[1] Amounts are rounded to millions each quarter. Therefore, the sum of the quarterly amounts may not equal the annual amounts reported.
[2] Income (loss) from discontinued operations, net of income taxes (Note 9), was attributable to Qualcomm.
[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.