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. 30, 2014
Dec. 29, 2013
Mar. 31, 2013
Dec. 30, 2012
Mar. 30, 2014
Mar. 31, 2013
Balance at beginning of period attributable to Qualcomm   $ 36,088     $ 36,088  
Balance at beginning of period attributable to noncontrolling interests   (1)     (1)  
Balance at beginning of period total stockholders' equity   36,087     36,087  
Net income attributable to Qualcomm 1,959   1,866   3,835 3,772
Net loss attributable to noncontrolling interests (1)   (3)   (2) (6)
Net income 1,958   1,863   3,833 3,766
Other comprehensive income 25   141   57 155
Common stock issued under employee benefit plans and related tax benefits, net of shares withheld for taxes         925  
Share-based compensation         552  
Dividends (599) (599) (439) (435) (1,198) (874)
Stock repurchases         (2,004)  
Other         1  
Balance at end of period attributable to Qualcomm 38,254       38,254  
Balance at end of period attributable to noncontrolling interests (1)       (1)  
Balance at end of period total stockholders' equity 38,253       38,253  
Qualcomm Stockholders' Equity [Member]
            
Balance at beginning of period attributable to Qualcomm   36,088     36,088  
Net income attributable to Qualcomm         3,835  
Other comprehensive income attributable to Qualcomm         57  
Common stock issued under employee benefit plans and related tax benefits, net of shares withheld for taxes         925  
Share-based compensation         552  
Dividends         (1,198)  
Stock repurchases         (2,004)  
Other         (1)  
Balance at end of period attributable to Qualcomm 38,254       38,254  
Noncontrolling Interests [Member]
            
Balance at beginning of period attributable to noncontrolling interests   (1)     (1)  
Net loss attributable to noncontrolling interests         (2)  
Other comprehensive loss attributable to noncontrolling Interests         0  
Common stock issued under employee benefit plans and related tax benefits, net of shares withheld for taxes         0  
Share-based compensation         0  
Dividends         0  
Stock repurchases         0  
Other         2  
Balance at end of period attributable to noncontrolling interests $ (1)       $ (1)