SEGMENT INFORMATION - Segment Assets (Details) - USD ($) $ in Millions	Jan. 31, 2022	Oct. 31, 2021
Segment Reporting Information
Assets	$ 10,327	$ 10,705
Life Sciences and Applied Markets
Segment Reporting Information
Assets	3,752	3,741
Diagnostics and Genomics
Segment Reporting Information
Assets	3,325	3,320
Agilent CrossLab
Segment Reporting Information
Assets	870	839
Segment Total
Segment Reporting Information
Assets	$ 7,947	$ 7,900