QUALCOMM Incorporated Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity Accumulated Other Comprehensive Income (Details)

Stockholders' Equity Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 28, 2014	Dec. 29, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance total accumulated other comprehensive income	$ 634
Ending balance total accumulated other comprehensive income	428
Investment income, net	234us-gaap_InvestmentIncomeNonoperating	264us-gaap_InvestmentIncomeNonoperating
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance total accumulated other comprehensive income	(113)
Other comprehensive loss before reclassifications	(21)
Reclassifications from accumulated other comprehensive income	0
Other comprehensive loss	(21)
Ending balance total accumulated other comprehensive income	(134)
Noncredit Other-than-Temporary Impairment Losses and Subsequent Changes in Fair Value for Certain Available-for-Sale Debt Securities [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance total accumulated other comprehensive income	24
Other comprehensive loss before reclassifications	(8)
Reclassifications from accumulated other comprehensive income	6
Other comprehensive loss	(2)
Ending balance total accumulated other comprehensive income	22
Net Unrealized Gain (Loss) on Other Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance total accumulated other comprehensive income	723
Other comprehensive loss before reclassifications	(104)
Reclassifications from accumulated other comprehensive income	(77)
Other comprehensive loss	(181)
Ending balance total accumulated other comprehensive income	542
Net Unrealized Gain (Loss) on Derivative Instruments [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance total accumulated other comprehensive income	0
Other comprehensive loss before reclassifications	(2)
Reclassifications from accumulated other comprehensive income	0
Other comprehensive loss	(2)
Ending balance total accumulated other comprehensive income	(2)
Net Unrealized Gain (Loss) on Derivative Instruments [Member] \| Reclassifications from Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Revenues Costs And Expenses		6
Total Accumulated Other Comprehensive Income Attributable to Qualcomm [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance total accumulated other comprehensive income	634
Other comprehensive loss before reclassifications	(135)
Reclassifications from accumulated other comprehensive income	(71)
Other comprehensive loss	(206)
Ending balance total accumulated other comprehensive income	428
Net Unrealized Gain (Loss) On Available for Sale Securities And Foreign Currency Translation Adjustment And Noncredit Other-than-Temporary Impairment Losses and Subsequent Changes in Fair Value for Certain Available for Sale Debt Securities \| Reclassifications from Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Investment income, net	$ 71	$ 53