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SEGMENT INFORMATION - Profitability (Details) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2016 USD ($) | Apr. 30, 2015 USD ($) | Apr. 30, 2016 USD ($) | Apr. 30, 2015 USD ($)
Segment Reporting [Abstract] |  |  |  |
Number of operating segments | 3 |  |  |
Select Income Statement Components |  |  |  |
Total net revenue | $ 1,019 | $ 963 | $ 2,047 | $ 1,989
Income from operations | 131 | 107 | 286 | 222
Life Sciences and Applied Markets |  |  |  |
Select Income Statement Components |  |  |  |
Total net revenue | 495 | 473 | 1,021 | 1,020
Income from operations | 94 | 75 | 208 | 182
Diagnostics and Genomics |  |  |  |
Select Income Statement Components |  |  |  |
Total net revenue | 178 | 169 | 336 | 317
Income from operations | 27 | 25 | 42 | 26
Agilent CrossLab |  |  |  |
Select Income Statement Components |  |  |  |
Total net revenue | 346 | 321 | 690 | 652
Income from operations | 74 | 69 | 150 | 137
Segment Total |  |  |  |
Select Income Statement Components |  |  |  |
Total net revenue | 1,019 | 963 | 2,047 | 1,989
Income from operations | $ 195 | $ 169 | $ 400 | $ 345

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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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