REVENUE- Revenue by Region (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2024	Jan. 31, 2023
Net revenue	$ 1,658	$ 1,756
Life Sciences and Applied Markets
Net revenue	846	943
Agilent CrossLab
Net revenue	405	381
Diagnostics and Genomics
Net revenue	407	432
Americas
Net revenue	630	687
Americas | Life Sciences and Applied Markets
Net revenue	244	286
Americas | Agilent CrossLab
Net revenue	164	154
Americas | Diagnostics and Genomics
Net revenue	222	247
Europe
Net revenue	458	456
Europe | Life Sciences and Applied Markets
Net revenue	224	239
Europe | Agilent CrossLab
Net revenue	111	98
Europe | Diagnostics and Genomics
Net revenue	123	119
Asia Pacific
Net revenue	570	613
Asia Pacific | Life Sciences and Applied Markets
Net revenue	378	418
Asia Pacific | Agilent CrossLab
Net revenue	130	129
Asia Pacific | Diagnostics and Genomics
Net revenue	$ 62	$ 66