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GOODWILL AND OTHER INTANGIBLE ASSETS Disclosures and Components of Purchased Other Intangibles (Details) - USD ($) $ in Millions | Apr. 30, 2019 | Oct. 31, 2018
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Finite-Lived Intangible Assets, Net [Abstract] |  |
Amortizable intangible assets, Gross carrying amount | $ 1,186 | $ 1,186
Accumulated Amortization and impairments | 644 | 542
Amortizable intangible assets, Net book value | 542 | 644
In-Process R&D | 1 | 1
Intangible Assets, Gross (Excluding Goodwill) | 1,187 | 1,187
Intangible Assets, Net (Excluding Goodwill) | 543 | 645
Developed technology |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Amortizable intangible assets, Gross carrying amount | 835 | 835
Accumulated Amortization and impairments | 494 | 415
Intangible Assets, Net (Excluding Goodwill) | 341 | 420
Backlog |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
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, Net [Abstract] |  |
Amortizable intangible assets, Gross carrying amount | 33 | 33
Accumulated Amortization and impairments | 17 | 14
Intangible Assets, Net (Excluding Goodwill) | 16 | 19
Customer relationships |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Amortizable intangible assets, Gross carrying amount | 304 | 304
Accumulated Amortization and impairments | 120 | 100
Intangible Assets, Net (Excluding Goodwill) | 184 | 204
Noncompete Agreements [Member] |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Amortizable intangible assets, Gross carrying amount | 1 | 1
Accumulated Amortization and impairments | 0 | 0
Intangible Assets, Net (Excluding Goodwill) | $ 1 | $ 1

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