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

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information Document
Financial Statements
Notes to Financial Statements
Accounting Policies
- Basis of Presentation (Policies)
Notes Tables
Notes Details

Marketable Securities Available-for-sale Securities (Details)

v3.8.0.1

Marketable Securities Available-for-sale Securities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 25, 2018	Mar. 26, 2017	Mar. 25, 2018	Mar. 26, 2017	Sep. 24, 2017
Contractual maturities of available-for-sale debt securities [Abstract]
Years to Maturity - Less Than One Year	$ 610		$ 610
Years to Maturity - One to Five Years	900		900
Years to Maturity - Five to Ten Years	0		0
Years to Maturity - Greater Than Ten Years	0		0
Years to Maturity - No Single Maturity Date	108		108
Realized Gains and Losses on Sales of Available-for-sale Securities [Abstract]
Gross Realized Gains	11	$ 57	13	$ 303
Gross Realized Losses	0	0	0	(107)
Net Realized Gains	11	$ 57	13	$ 196
Available-for-sale Securities [Abstract]
Available-for-sale Equity Securities, Cost	8		8		$ 8
Available-for-sale Equity Securities, Unrealized Gains	32		32		28
Available-for-sale Securities Equity Securities, Fair Value	40		40		36
Available-for-sale Debt Securities (including debt funds), Cost	1,621		1,621		3,497
Available-for-sale Debt Securities (including debt funds), Unrealized Gains	3		3		13
Available-for-sale Debt Securities (including debt funds), Unrealized Losses	(6)		(6)		(1)
Available-for-sale Debt Securities, Fair Value	1,618		1,618		3,509
Fair Value	$ 1,658		$ 1,658		$ 3,545

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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt securities classified as available-for-sale.

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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in equity securities classified as available-for-sale.

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Fair value of available-for-sale debt securities maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Fair value of available-for-sale debt securities maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Fair value of available-for-sale debt securities maturing after the tenth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Fair value of available-for-sale debt securities maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of available-for-sale debt securities at fair value that do not have a single maturity date and which the entity has decided to disclose separately rather than allocating the fair value over several maturity groupings.

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Amount of loss realized on the sale of debt or equity securities classified as available-for-sale. Excludes other than temporary impairments (OTTI).

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