GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill Roll forward (Details) $ in Millions	9 Months Ended
	Jul. 31, 2020 USD ($)
Goodwill Roll Forward
Goodwill beginning balance	$ 3,593
Foreign currency translation impact	13
Goodwill ending balance	3,606
Life Sciences and Applied Markets
Goodwill Roll Forward
Goodwill beginning balance	1,438
Foreign currency translation impact	5
Goodwill ending balance	1,443
Diagnostics and Genomics
Goodwill Roll Forward
Goodwill beginning balance	1,594
Foreign currency translation impact	6
Goodwill ending balance	1,600
Agilent CrossLab
Goodwill Roll Forward
Goodwill beginning balance	561
Foreign currency translation impact	2
Goodwill ending balance	$ 563