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SEGMENT INFORMATION - Profitability (Details) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jul. 31, 2021 USD ($) | Jul. 31, 2020 USD ($) | Jul. 31, 2021 USD ($) | Jul. 31, 2020 USD ($)
Segment Reporting Information |  |  |  |
Number of operating segments | 3 |  |  |
Segment Reporting Information |  |  |  |
Net revenue | $ 1,586 | $ 1,261 | $ 4,659 | $ 3,856
Income from operations | 336 | 230 | 952 | 547
Life Sciences and Applied Markets |  |  |  |
Segment Reporting Information |  |  |  |
Net revenue | 680 | 557 | 2,076 | 1,721
Income from operations | 170 | 126 | 523 | 382
Diagnostics and Genomics |  |  |  |
Segment Reporting Information |  |  |  |
Net revenue | 346 | 241 | 955 | 753
Income from operations | 78 | 41 | 202 | 132
Agilent CrossLab |  |  |  |
Segment Reporting Information |  |  |  |
Net revenue | 560 | 463 | 1,628 | 1,382
Income from operations | 164 | 132 | 447 | 373
Segment Total |  |  |  |
Segment Reporting Information |  |  |  |
Net revenue | 1,586 | 1,261 | 4,659 | 3,856
Income from operations | $ 412 | $ 299 | $ 1,172 | $ 887

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