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GOODWILL AND OTHER INTANGIBLE ASSETS (Roll Forward) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2019
Goodwill - Rollforward
Beginning Balance	$ 1,171	$ 1,882
Foreign currency translation impact	8	(5)
Goodwill arising from acquisitions	30	6
Impairment losses	0	(709)	$ 0
Divestitures		(3)
Ending Balance	1,209	1,171	1,882
Goodwill, Gross				$ 1,918
Accumulated impairment losses				(709)
Goodwill	1,209	1,171	1,882	1,209
Communications Solutions Group
Goodwill - Rollforward
Beginning Balance	497	497
Foreign currency translation impact	8	(2)
Goodwill arising from acquisitions	30	4
Impairment losses		0
Divestitures		(2)
Ending Balance	535	497	497
Goodwill, Gross				535
Accumulated impairment losses				0
Goodwill	535	497	497	535
Electronic Industrial Solutions Group
Goodwill - Rollforward
Beginning Balance	267	268
Foreign currency translation impact	0	(2)
Goodwill arising from acquisitions	0	2
Impairment losses		0
Divestitures		(1)
Ending Balance	267	267	268
Goodwill, Gross				267
Goodwill	267	267	268	267
Ixia Solutions Group [Member]
Goodwill - Rollforward
Beginning Balance	407	1,117
Foreign currency translation impact	0	(1)
Goodwill arising from acquisitions	0	0
Impairment losses		(709)
Divestitures		0
Ending Balance	407	407	1,117
Goodwill, Gross				1,116
Accumulated impairment losses				(709)
Goodwill	$ 407	$ 407	$ 1,117	$ 407

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