GOODWILL AND OTHER INTANGIBLE ASSETS Text (Details) $ in Millions	12 Months Ended
	Oct. 31, 2023 USD ($) numberOfCustomers	Oct. 31, 2022 USD ($)	Oct. 31, 2021 USD ($)
Intangible Assets, Including Goodwill)
Goodwill Additions	$ 15	$ 19
Additions and adjustments to other intangibles	50
Foreign exchange translation impact to other intangible assets	2	(3)
Goodwill and Intangible Asset Impairment [Abstract]
Goodwill impairment	0	0	$ 0
Impairment of finite-lived intangible assets	0	0	0
Impairment of indefinite-lived intangible assets	0	0	0
Business Acquisition
Intangible assets written-off	7
Net gain on Divestiture of Business	43	0	0
Proceeds from Divestiture of Businesses	50	0	$ 0
Diagnostics and Genomics
Intangible Assets, Including Goodwill)
Goodwill Additions	15	0
Life Sciences and Applied Markets
Intangible Assets, Including Goodwill)
Goodwill Additions	0	19
Agilent CrossLab
Intangible Assets, Including Goodwill)
Goodwill Additions	0	0
Resolution Bioscience, Inc.
Goodwill and Intangible Asset Impairment [Abstract]
Impairment of finite-lived intangible assets	258
Business Acquisition
Net gain on Divestiture of Business	43
Resolution Bioscience, Inc. | Cost of Product and Services
Goodwill and Intangible Asset Impairment [Abstract]
Impairment of finite-lived intangible assets	$ 249
Business Acquisition
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration]	Cost of revenue
Resolution Bioscience, Inc. | Selling, General and Administrative
Goodwill and Intangible Asset Impairment [Abstract]
Impairment of finite-lived intangible assets	$ 9
Business Acquisition
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration]	Selling, general and administrative
Polymer Standards Service GmbH
Intangible Assets, Including Goodwill)
Goodwill Additions		19
Additions and adjustments to other intangibles		35
Business Acquisition
Purchase price for acquisition		$ 41
Acquisition of businesses
Business Acquisition
Number of Businesses Acquired | numberOfCustomers	2
Purchase price for acquisition	$ 51