GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill Roll forward (Details) - USD ($) $ in Millions	3 Months Ended
Jan. 31, 2022	Jan. 31, 2021
Goodwill [Line Items]
Goodwill impairment	$ 0	$ 0
Goodwill Roll Forward
Goodwill beginning balance	3,975
Foreign currency translation impact	(11)
Goodwill arising from acquisitions	0
Goodwill ending balance	3,964
Life Sciences and Applied Markets
Goodwill Roll Forward
Goodwill reassigned to segment	307
Goodwill beginning balance	1,743
Foreign currency translation impact	(4)
Goodwill ending balance	1,739
Diagnostics and Genomics
Goodwill Roll Forward
Goodwill beginning balance	1,964
Foreign currency translation impact	(3)
Goodwill ending balance	1,961
Agilent CrossLab
Goodwill Roll Forward
Goodwill reassigned to segment	10
Goodwill beginning balance	268
Foreign currency translation impact	(4)
Goodwill ending balance	$ 264

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.

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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.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of transfers into (out of) an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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