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FAIR VALUE MEASUREMENTS, Assets and Liabilities measured at Fair Value on a Non-Recurring Basis (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2022	Apr. 30, 2021	Oct. 31, 2021
Long-Lived Assets
Carrying value of impaired long-lived assets held for use		$ 2		$ 2
Fair value of impaired long-lived assets held for use		0		0
Impairment of Long-Lived Assets Held-for-use	$ 0	2	$ 0	2
Impairment of Long-Lived assets Held for sale	0	0	0	0
Equity Securities
Impairment of non-marketable securities	0	0	0	0
Non-marketable equity securities carrying amount	128		128		$ 120
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount	$ 3	$ 0	$ 3	$ 0

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Assets Long Lived [Abstract]

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Amount of investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 3
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Amount of cumulative impairment loss on investment in equity security without readily determinable fair value.

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Amount of cumulative gain from upward price adjustment on investment in equity security without readily determinable fair value.

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The carrying amount on the books of the entity of the impaired asset to be disposed of by a method other than sale.

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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Fair value portion of other assets.

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