Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity Changes in Stockholders' Equity (Details)

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Stockholders' Equity Changes in Stockholders' Equity (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended
Mar. 25, 2012
Dec. 25, 2011
Mar. 27, 2011
Dec. 26, 2010
Mar. 25, 2012
Mar. 27, 2011
Balance at beginning period   $ 26,972     $ 26,972  
Net income (loss) 2,199   995 [1]   3,594 [2] 2,164 [1]
Other comprehensive income (loss) 315   45   455 105
Common stock issued under employee benefit plans and the related tax benefits, net of shares withheld for tax         1,189  
Share-based compensation         499  
Dividends (377) (368) (319) (314) (745) (633)
Stock repurchases         (99)  
Other         5  
Balance at ending period 31,870       31,870  
Qualcomm Stockholders' Equity [Member]
            
Balance at beginning period   26,951     26,951  
Net income (loss)         3,631 [2]  
Other comprehensive income (loss)         456  
Common stock issued under employee benefit plans and the related tax benefits, net of shares withheld for tax         1,189  
Share-based compensation         499  
Dividends         (745)  
Stock repurchases         (99)  
Other         0  
Balance at ending period 31,882       31,882  
Noncontrolling Interests [Member]
            
Balance at beginning period   21     21  
Net income (loss)         (37) [2]  
Other comprehensive income (loss)         (1)  
Common stock issued under employee benefit plans and the related tax benefits, net of shares withheld for tax         0  
Share-based compensation         0  
Dividends         0  
Stock repurchases         0  
Other         5  
Balance at ending period $ (12)       $ (12)  
[1] As adjusted for discontinued operations (Note 8)
[2] Discontinued operations, net of income taxes, (Note 8) was attributable to Qualcomm.