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GOODWILL AND OTHER INTANGIBLE ASSETS Textuals (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2019 | Apr. 30, 2018 | Apr. 30, 2019 | Apr. 30, 2018
Finite-Lived Intangible Assets |  |  |  |
Additions to goodwill |  |  | $ 142 |
Addition to other intangible assets |  |  | 102 |
Impairment of IPR&D | $ 0 | $ 0 | 0 | $ 0
Goodwill impairment | 0 | 0 | 0 | 0
Amortization of intangible assets during the period | 26 | $ 26 | 55 | $ 52
Life Sciences and Applied Markets |  |  |  |
Finite-Lived Intangible Assets |  |  |  |
Additions to goodwill |  |  | 153 |
Diagnostics and Genomics |  |  |  |
Finite-Lived Intangible Assets |  |  |  |
Measurement period adjustment to goodwill |  |  | $ (11) |
ACEA Biosciences, Inc. |  |  |  |
Acquisition |  |  |  |
Purchase Price | $ 250 |  |  |

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