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GOODWILL AND OTHER INTANGIBLE ASSETS Disclosures and Components of Purchased Other Intangibles (Details) - USD ($) $ in Millions | Jul. 31, 2020 | Oct. 31, 2019
--- | --- | ---
Finite-Lived Intangible Assets, Net |  |
Gross Carrying Amount | $ 1,994 | $ 2,086
Accumulated Amortization | 1,118 | 979
Net Book Value | 876 | 1,107
Purchased Technology |  |
Finite-Lived Intangible Assets, Net |  |
Gross Carrying Amount | 1,419 | 1,413
Accumulated Amortization | 839 | 763
Net Book Value | 580 | 650
Backlog |  |
Finite-Lived Intangible Assets, Net |  |
Gross Carrying Amount |  | 5
Accumulated Amortization |  | 5
Net Book Value |  | 0
Trademark/Tradenames |  |
Finite-Lived Intangible Assets, Net |  |
Gross Carrying Amount | 196 | 196
Accumulated Amortization | 113 | 102
Net Book Value | 83 | 94
Customer Relationships |  |
Finite-Lived Intangible Assets, Net |  |
Gross Carrying Amount | 330 | 329
Accumulated Amortization | 142 | 87
Net Book Value | 188 | 242
Third-Party Technology and Licenses |  |
Finite-Lived Intangible Assets, Net |  |
Gross Carrying Amount | 28 | 28
Accumulated Amortization | 24 | 22
Net Book Value | 4 | 6
Total amortizable intangible assets |  |
Finite-Lived Intangible Assets, Net |  |
Gross Carrying Amount | 1,973 | 1,971
Accumulated Amortization | 1,118 | 979
Net Book Value | 855 | 992
In-Process R&D |  |
Indefinite-Lived Intangible Assets (Excluding Goodwill) |  |
In-Process R&D | $ 21 | $ 115

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