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GOODWILL AND OTHER INTANGIBLE ASSETS (Disclosures and Components of Purchased Other Intangibles) (Details) - USD ($) $ in Millions | Jan. 31, 2020 | Oct. 31, 2019
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Amortizable intangible assets, Gross carrying amount | $ 1,240 | $ 1,240
Accumulated Amortization and impairments | 807 | 752
Amortizable intangible assets, Net book value | 433 | 488
In-Process R&D | 2 | 2
Intangible Assets, Gross (Excluding Goodwill) | 1,242 | 1,242
Intangible Assets, Net (Excluding Goodwill) | 435 | 490
Developed technology |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortizable intangible assets, Gross carrying amount | 876 | 876
Accumulated Amortization and impairments | 621 | 578
Intangible Assets, Net (Excluding Goodwill) | 255 | 298
Backlog |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortizable intangible assets, Gross carrying amount | 13 | 13
Accumulated Amortization and impairments | 13 | 13
Intangible Assets, Net (Excluding Goodwill) | 0 | 0
Trademark/Tradename |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortizable intangible assets, Gross carrying amount | 34 | 34
Accumulated Amortization and impairments | 22 | 21
Intangible Assets, Net (Excluding Goodwill) | 12 | 13
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortizable intangible assets, Gross carrying amount | 316 | 316
Accumulated Amortization and impairments | 150 | 139
Intangible Assets, Net (Excluding Goodwill) | 166 | 177
Noncompete Agreements [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortizable intangible assets, Gross carrying amount | 1 | 1
Accumulated Amortization and impairments | 1 | 1
Intangible Assets, Net (Excluding Goodwill) | $ 0 | $ 0

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