Annual report pursuant to Section 13 and 15(d)

The Company and Its Significant Accounting Policies Comprehensive Income (Details)

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The Company and Its Significant Accounting Policies Comprehensive Income (Details) (USD $)
In Millions, 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
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
Other comprehensive income:                      
Noncredit other-than-temporary impairment losses and subsequent changes in fair value related to certain available-for-sale debt securities, net of income taxes                 4 (19) 21
Net unrealized gains (losses) on other available-for-sale securities and derivative instruments, net of income taxes                 652 (145) 392
Reclassification of net realized gains on available-for-sale securities and derivative instruments included in net income, net of income taxes                 (169) (199) (380)
Reclassification of other-than-temporary losses on available-for-sale securities included in net income, net of income taxes                 47 25 116
Foreign currency translation                 (19) (9) (40)
Total other comprehensive income (loss)                 515 (347) 109
Total comprehensive income                 6,574 3,895 3,356
Comprehensive loss attributable to noncontrolling interests                 46 21 0
Comprehensive income attributable to Qualcomm                 6,620 3,916 3,356
Noncredit other-than-temporary impairment losses and subsequent changes in fair value related to certain available-for-sale debt securities, income tax effect                 1 10 (5)
Net unrealized gains (losses) on other available-for-sale securities and derivative instruments, income tax effect                 357 80 74
Reclassification of net realized gains on available-for-sale securities and derivative instruments included in net income, income tax effect                 93 112 (12)
Reclassification of other-than-temporary losses on available-for-sale securities included in net income, income tax effect                 $ 26 $ 14 $ (5)
[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.