SHARE-BASED COMPENSATION Text (Details) - USD ($) shares in Millions, $ in Millions	9 Months Ended	12 Months Ended
Jul. 31, 2020	Oct. 31, 2019
Inventory
Share-based Compensation Arrangement by Share-based Payment Award
Share-based compensation capitalized in inventory	$ 0	$ 0
Employee Stock [ESPP]
Share-based Compensation Arrangement by Share-based Payment Award
Number of Common shares available for future issuance	31
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award
Vesting percentage	25.00%
Vesting Period	4 years
Minimum \| Performance Shares [LTPP]
Share-based Compensation Arrangement by Share-based Payment Award
Vesting percentage	0.00%
Maximum \| Performance Shares [LTPP]
Share-based Compensation Arrangement by Share-based Payment Award
Vesting percentage	200.00%

Aggregate number of common shares reserved for future issuance.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage of vesting of award under share-based payment arrangement.

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Amount of cost expensed and capitalized for award under share-based payment arrangement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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