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GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill Roll forward (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2022	Apr. 30, 2021
Goodwill [Line Items]
Goodwill impairment	$ 0	$ 0	$ 0	$ 0
Goodwill Roll Forward
Goodwill beginning balance			3,975
Foreign currency translation impact			(19)
Goodwill arising from acquisitions			0
Goodwill ending balance	3,956		3,956
Life Sciences and Applied Markets
Goodwill Roll Forward
Goodwill reassigned to segment			307
Goodwill beginning balance			1,743
Foreign currency translation impact			(7)
Goodwill ending balance	1,736		1,736
Diagnostics and Genomics
Goodwill Roll Forward
Goodwill beginning balance			1,964
Foreign currency translation impact			(7)
Goodwill ending balance	1,957		1,957
Agilent CrossLab
Goodwill Roll Forward
Goodwill reassigned to segment			10
Goodwill beginning balance			268
Foreign currency translation impact			(5)
Goodwill ending balance	$ 263		$ 263