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SHARE-BASED COMPENSATION Allocated Share-based compensation expense (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2023 | Apr. 30, 2022 | Apr. 30, 2023 | Apr. 30, 2022
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |
Share-based compensation expense | $ 25 | $ 27 | $ 69 | $ 72
Cost of Products and Services |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |
Share-based compensation expense | 7 | 6 | 20 | 17
Research and Development |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |
Share-based compensation expense | 3 | 2 | 8 | 8
Selling, General and Administrative |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |
Share-based compensation expense | $ 15 | $ 19 | $ 41 | $ 47

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition 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. + References No definition available. + Details
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