SEGMENT INFORMATION - Profitability (Details) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2023 USD ($)	Jul. 31, 2022 USD ($)	Jul. 31, 2023 USD ($)	Jul. 31, 2022 USD ($)
Segment Reporting Information
Number of operating segments	3	3	3	3
Segment Reporting Information
Net revenue	$ 1,672	$ 1,718	$ 5,145	$ 4,999
Income from operations	133	411	942	1,147
Life Sciences and Applied Markets
Segment Reporting Information
Net revenue	927	1,019	2,928	2,891
Income from operations	277	311	855	821
Diagnostics and Genomics
Segment Reporting Information
Net revenue	349	340	1,053	1,037
Income from operations	84	73	216	232
Agilent CrossLab
Segment Reporting Information
Net revenue	396	359	1,164	1,071
Income from operations	129	88	335	266
Segment Total
Segment Reporting Information
Income from operations	$ 490	$ 472	$ 1,406	$ 1,319