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GOODWILL AND OTHER INTANGIBLE ASSETS Roll forward (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Goodwill - Rollforward
Beginning Balance	$ 2,973	$ 2,607
Foreign currency translation impact	(5)	(15)
Goodwill arising from acquisitions	625	381
Ending Balance	3,593	2,973
Life Sciences and Applied Markets
Goodwill - Rollforward
Beginning Balance	803	773
Foreign currency translation impact	(1)	(7)
Goodwill arising from acquisitions	636	37
Ending Balance	1,438	803
Diagnostics and Genomics
Goodwill - Rollforward
Beginning Balance	1,607	1,330
Foreign currency translation impact	(2)	(4)
Goodwill arising from acquisitions		281
Indefinite-lived Intangible Assets, Purchase Accounting Adjustments	(11)
Ending Balance	1,594	1,607
Agilent CrossLab
Goodwill - Rollforward
Beginning Balance	563	504
Foreign currency translation impact	(2)	(4)
Goodwill arising from acquisitions	0	63
Ending Balance	$ 561	$ 563

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

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-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
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-Paragraph 1
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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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-Publisher FASB
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-Topic 350
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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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-SubTopic 20
-Section 50
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount of increase (decrease) of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit, from purchase accounting adjustments.

+ References

No definition available.

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