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		6 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Mar. 29, 2015	Mar. 30, 2014
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	472		472
Investment income, net	203us-gaap_InvestmentIncomeNonoperating	282us-gaap_InvestmentIncomeNonoperating	437us-gaap_InvestmentIncomeNonoperating	546us-gaap_InvestmentIncomeNonoperating
Reclassifications from Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Investment income, net	47	71	118	124
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			(31)
Reclassifications from accumulated other comprehensive income			0
Other comprehensive loss			(31)
Ending balance total accumulated other comprehensive income	(144)		(144)
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			(7)
Reclassifications from accumulated other comprehensive income			4
Other comprehensive loss			(3)
Ending balance total accumulated other comprehensive income	21		21
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			(6)
Reclassifications from accumulated other comprehensive income			(122)
Other comprehensive loss			(128)
Ending balance total accumulated other comprehensive income	595		595
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		7		13
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			(44)
Reclassifications from accumulated other comprehensive income			(118)
Other comprehensive loss			(162)
Ending balance total accumulated other comprehensive income	$ 472		$ 472