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FAIR VALUE MEASUREMENTS, Contingent Consideration (Details) - USD ($) $ in Millions | 3 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Apr. 30, 2023 | Jan. 31, 2023 | Oct. 31, 2022 | Apr. 30, 2022 | Jan. 31, 2022 | Oct. 31, 2021
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |
Fair Value of contingent consideration | $ 8 | $ 3 | $ 67 | $ 67 | $ 92 | $ 89
Resolution Bioscience, Inc. |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |
Contingent Consideration maximum earn-out period | 1 year 8 months 12 days |  |  |  |  |
Contingent Consideration Arrangement - Maximum | $ 60 |  |  |  |  |
Resolution Bioscience, Inc. | Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Revenue Component |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |
Fair Value of contingent consideration | $ 0 |  |  |  |  |

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