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INVESTMENTS (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018	Nov. 01, 2018
Long-Term [Abstract]
Equity investments - without readily determinable fair value	$ 103	$ 47
Equity investments - with readily determinable fair value	25	25
Trading securities	30	30
Long-term investments	158	102
Amounts included in other income (expense), net [Abstract]
Net unrealized gains on our equity securities with RDFV	28	1	$ 0
Retained earnings (accumulated deficit)	81	(18)
Net unrealized gains on trading securities	2	3	$ 1
Equity Securities without Readily Determinable Fair Value
Amounts included in other income (expense), net [Abstract]
Unrealized gain on non-marketable equity securities	27	1
Equity Securities with Readily Determinable Fair Value
Amounts included in other income (expense), net [Abstract]
Net unrealized gains on our equity securities with RDFV	$ (1)	$ 3
Accounting Standards Update 2016-01
Long-Term [Abstract]
Long-term investments				$ 7
Amounts included in other income (expense), net [Abstract]
Retained earnings (accumulated deficit)				$ 5

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Gain (Loss) on Investments, Marketable Securities [Abstract]

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

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The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

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