Cash, Cash Equivalents and Investments - Gain (Loss) on Equity Investments (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Aug. 01, 2021	Jul. 26, 2020	Aug. 01, 2021	Jul. 26, 2020
Gain (Loss) on Securities [Line Items]
Total gain (loss) on equity investments, net	$ 19	$ 13	$ 47	$ 2
Publicly traded equity securities
Gain (Loss) on Securities [Line Items]
Unrealized gain	1	6	12	11
Unrealized loss	(4)	0	(6)	(15)
Realized gain on sales	0	1	0	1
Equity investments in privately-held companies
Gain (Loss) on Securities [Line Items]
Unrealized gain	19	1	50	10
Unrealized loss	(3)	(2)	(11)	(5)
Realized gain on sales	6	7	9	8
Realized loss on sales or impairment	$ 0	$ 0	$ (7)	$ (8)

Amount of unrealized and realized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123583765&loc=SL75117546-209714

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Amount of realized gain from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of realized loss from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of unrealized gain on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123583765&loc=SL75117546-209714

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Amount of unrealized loss on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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