GOODWILL AND OTHER INTANGIBLE ASSETS Text (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
	Sep. 20, 2024	Jan. 31, 2024	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2022
Intangible Assets, Including Goodwill)
Goodwill Additions			$ 526	$ 15
Finite-Lived Intangible Assets, Period Increase (Decrease)			188	50
Foreign exchange translation impact to other intangible assets			(5)		$ 2
Goodwill and Intangible Asset Impairment [Abstract]
Goodwill impairment		$ 0	0	0	0
Impairment of finite-lived intangible assets			0		0
Impairment of indefinite-lived intangible assets			6	0	0
Business Acquisition
Intangible assets written-off			18	7
Net gain on Divestiture of Business			0	43	0
Proceeds from Divestiture of Businesses			0	50	$ 0
Indefinite-Lived Intangible Assets, Period Increase (Decrease)			(4)
Diagnostics and Genomics
Intangible Assets, Including Goodwill)
Goodwill Additions			526	15
Business Acquisition
Goodwill, Transfers		(168)
Life Sciences and Applied Markets
Intangible Assets, Including Goodwill)
Goodwill Additions			0	0
Business Acquisition
Goodwill, Transfers		$ 168
Agilent CrossLab
Intangible Assets, Including Goodwill)
Goodwill Additions			0	0
Purchased technology
Intangible Assets, Including Goodwill)
Finite-Lived Intangible Assets, Period Increase (Decrease)			$ 4
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
Acquisition of businesses
Business Acquisition
Purchase price for acquisition				$ 51
BIOVECTRA
Intangible Assets, Including Goodwill)
Goodwill Additions	$ 526
Business Acquisition
Purchase price for acquisition	$ 915