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GOODWILL AND OTHER INTANGIBLE ASSETS Textuals (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Jul. 31, 2024	Jan. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
Finite-Lived Intangible Assets
Additions to goodwill				$ 0
Addition to other intangible assets				3
Foreign currency translation impact on other intangible assets				0
Goodwill impairment	$ 0	$ 0	$ 0	0	$ 0
Impairment of IPR&D	0		0	6	0
Amortization of intangible assets during the period	$ 25		39	78	113
Indefinite-Lived Intangible Assets, Period Increase (Decrease)				$ (4)
Resolution Bioscience, Inc.
Finite-Lived Intangible Assets
Impairment of Intangible Assets, Finite-lived			258		258
Resolution Bioscience, Inc. \| Cost of Products and Services
Finite-Lived Intangible Assets
Impairment of Intangible Assets, Finite-lived			$ 249		$ 249
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration]			Cost of revenue		Cost of revenue
Resolution Bioscience, Inc. \| Selling, General and Administrative
Finite-Lived Intangible Assets
Impairment of Intangible Assets, Finite-lived			$ 9		$ 9
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration]			Selling, General and Administrative Expense		Selling, General and Administrative Expense