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GOODWILL AND OTHER INTANGIBLE ASSETS Text (Details) - USD ($) $ in Millions |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 20, 2024 | Jan. 31, 2025 | Oct. 31, 2024 | Oct. 31, 2023 | Oct. 31, 2022
Intangible Assets, Including Goodwill) |  |  |  |  |
Goodwill Additions |  |  | $ 526 | $ 15 |
Finite-Lived Intangible Assets, Period Increase (Decrease) |  |  | 188 | 50 |
Foreign exchange translation impact to other intangible assets |  |  | (5) |  | $ 2
Goodwill and Intangible Asset Impairment [Abstract] |  |  |  |  |
Goodwill impairment |  |  | 0 | 0 | 0
Impairment of finite-lived intangible assets |  |  | 0 |  | 0
Impairment of indefinite-lived intangible assets |  |  | 6 | 0 | 0
Business Acquisition |  |  |  |  |
Intangible assets written-off |  |  | 18 | 7 |
Net gain on Divestiture of Business |  |  | 0 | 43 | 0
Proceeds from Divestiture of Businesses |  |  | 0 | 50 | $ 0
Indefinite-Lived Intangible Assets, Period Increase (Decrease) |  |  | (4) |  |
Life Sciences and Diagnostics Markets |  |  |  |  |
Intangible Assets, Including Goodwill) |  |  |  |  |
Goodwill Additions |  |  | 526 | 15 |
Business Acquisition |  |  |  |  |
Goodwill, Transfers |  | $ 365 |  |  |
Agilent CrossLab |  |  |  |  |
Intangible Assets, Including Goodwill) |  |  |  |  |
Goodwill Additions |  |  | 0 | 0 |
Business Acquisition |  |  |  |  |
Goodwill, Transfers |  | 909 |  |  |
Applied Markets |  |  |  |  |
Intangible Assets, Including Goodwill) |  |  |  |  |
Goodwill Additions |  |  | 0 | 0 |
Business Acquisition |  |  |  |  |
Goodwill, Transfers |  | $ (1,274) |  |  |
Purchased technology |  |  |  |  |
Intangible Assets, Including Goodwill) |  |  |  |  |
Finite-Lived Intangible Assets, Period Increase (Decrease) |  |  | $ 4 |  |
Resolution Bioscience, Inc. |  |  |  |  |
Goodwill and Intangible Asset Impairment [Abstract] |  |  |  |  |
Impairment of finite-lived intangible assets |  |  |  | 258 |
Business Acquisition |  |  |  |  |
Net gain on Divestiture of Business |  |  |  | 43 |
Resolution Bioscience, Inc. | Cost of Product and Services |  |  |  |  |
Goodwill and Intangible Asset Impairment [Abstract] |  |  |  |  |
Impairment of finite-lived intangible assets |  |  |  | $ 249 |
Business Acquisition |  |  |  |  |
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  |  | Cost of revenue |
Resolution Bioscience, Inc. | Selling, General and Administrative |  |  |  |  |
Goodwill and Intangible Asset Impairment [Abstract] |  |  |  |  |
Impairment of finite-lived intangible assets |  |  |  | $ 9 |
Business Acquisition |  |  |  |  |
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  |  | Selling, general and administrative |
Acquisition of businesses |  |  |  |  |
Business Acquisition |  |  |  |  |
Purchase price for acquisition |  |  |  | $ 51 |
BIOVECTRA |  |  |  |  |
Intangible Assets, Including Goodwill) |  |  |  |  |
Goodwill Additions | $ 526 |  |  |  |
Business Acquisition |  |  |  |  |
Purchase price for acquisition | $ 915 |  |  |  |

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