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GOODWILL AND OTHER INTANGIBLE ASSETS Text (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2020 | Oct. 31, 2019 | Oct. 31, 2018
Intangible Assets, Including Goodwill) |  |  |
Goodwill Additions | $ 0 | $ 625 |
Additions and adjustments to other intangibles | 0 |  |
Goodwill and Intangible Asset Impairment [Abstract] |  |  |
Goodwill impairment | 0 | 0 | $ 0
Impairment of finite-lived intangible assets | 0 | 0 | 21
Impairment of indefinite-lived intangible assets | 90 | 0 | $ 0
Business Acquisition |  |  |
Write-off of fully amortized intangible assets | $ 17 |  |
Diagnostics and Genomics |  |  |
Intangible Assets, Including Goodwill) |  |  |
Indefinite-lived Intangible Assets, Purchase Accounting Adjustments |  | (11) |
Life Sciences and Applied Markets |  |  |
Intangible Assets, Including Goodwill) |  |  |
Goodwill Additions |  | 636 |
Advanced Analytical Technologies, Inc (AATI) | Diagnostics and Genomics |  |  |
Intangible Assets, Including Goodwill) |  |  |
Indefinite-lived Intangible Assets, Purchase Accounting Adjustments |  | (11) |
BioTek and ACEA | Life Sciences and Applied Markets |  |  |
Intangible Assets, Including Goodwill) |  |  |
Goodwill Additions |  | 636 |
Additions and adjustments to other intangibles |  | $ 744 |

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