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ACQUISITIONS ACQUISITIONS - Intangible Assets (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Oct. 31, 2019 | Oct. 31, 2018
Business Acquisition [Line Items] |  |
Finite-lived intangible assets acquired | $ 1,971 | $ 1,233
In-Process R&D | 115 | 111
Total intangible assets acquired - excluding goodwill | 2,086 | 1,344
BioTek [Member] |  |
Business Acquisition [Line Items] |  |
Finite-lived intangible assets acquired | 637 |
In-Process R&D | 4 |
Total intangible assets acquired - excluding goodwill | 641 |
Developed product technology |  |
Business Acquisition [Line Items] |  |
Finite-lived intangible assets acquired | 1,413 | 947
Developed product technology | BioTek [Member] |  |
Business Acquisition [Line Items] |  |
Finite-lived intangible assets acquired | 387 |
Customer relationships |  |
Business Acquisition [Line Items] |  |
Finite-lived intangible assets acquired | 329 | $ 107
Customer relationships | BioTek [Member] |  |
Business Acquisition [Line Items] |  |
Finite-lived intangible assets acquired | 202 |
Backlog |  |
Business Acquisition [Line Items] |  |
Finite-lived intangible assets acquired | 5 |
Backlog | BioTek [Member] |  |
Business Acquisition [Line Items] |  |
Finite-lived intangible assets acquired | $ 5 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 2 months |
Tradenames and trademarks | BioTek [Member] |  |
Business Acquisition [Line Items] |  |
Finite-lived intangible assets acquired | $ 43 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 10 years |
Minimum | Developed product technology | BioTek [Member] |  |
Business Acquisition [Line Items] |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 5 years |
Minimum | Customer relationships | BioTek [Member] |  |
Business Acquisition [Line Items] |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 3 years |
Maximum | Developed product technology | BioTek [Member] |  |
Business Acquisition [Line Items] |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 13 years |
Maximum | Customer relationships | BioTek [Member] |  |
Business Acquisition [Line Items] |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 8 years |

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