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SEGMENT INFORMATION - Profitability (Details) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2017 USD ($)	Apr. 30, 2016 USD ($)	Apr. 30, 2017 USD ($)	Apr. 30, 2016 USD ($)
Segment Reporting Information
Number of operating segments	3
Segment Reporting Information
Total net revenue	$ 1,102	$ 1,019	$ 2,169	$ 2,047
Income from operations	201	131	407	286
Life Sciences and Applied Markets
Segment Reporting Information
Total net revenue	523	495	1,063	1,021
Income from operations	110	94	236	208
Diagnostics and Genomics
Segment Reporting Information
Total net revenue	201	178	365	336
Income from operations	49	27	72	42
Agilent CrossLab
Segment Reporting Information
Total net revenue	378	346	741	690
Income from operations	82	74	156	150
Segment Total
Segment Reporting Information
Total net revenue	1,102	1,019	2,169	2,047
Income from operations	$ 241	$ 195	$ 464	$ 400

X

- 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.

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The net result for the period of deducting operating expenses from operating revenues.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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