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REVENUE - Revenue by Region (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2023 | Oct. 31, 2022 | Oct. 31, 2021
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | $ 6,833 | $ 6,848 | $ 6,319
Americas |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 2,732 | 2,682 | 2,404
Europe |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 1,754 | 1,699 | 1,688
Asia Pacific |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 2,347 | 2,467 | 2,227
Life Sciences and Applied Markets |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 3,510 | 3,630 | 3,304
Life Sciences and Applied Markets | Americas |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 1,099 | 1,109 | 953
Life Sciences and Applied Markets | Europe |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 851 | 844 | 842
Life Sciences and Applied Markets | Asia Pacific |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 1,560 | 1,677 | 1,509
Diagnostics and Genomics |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 1,755 | 1,766 | 1,655
Diagnostics and Genomics | Americas |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 999 | 1,006 | 941
Diagnostics and Genomics | Europe |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 486 | 473 | 468
Diagnostics and Genomics | Asia Pacific |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 270 | 287 | 246
Agilent CrossLab |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 1,568 | 1,452 | 1,360
Agilent CrossLab | Americas |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 634 | 567 | 510
Agilent CrossLab | Europe |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | 417 | 382 | 378
Agilent CrossLab | Asia Pacific |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net revenue | $ 517 | $ 503 | $ 472

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