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REVENUE (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 1,011	$ 1,087	$ 3,001	$ 3,183
Communications Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	760	792	2,231	2,332
Electronic Industrial Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	251	295	770	851
Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Revenues	840	956	2,498	2,804
Transferred at Point in Time | Communications Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	624	687	1,832	2,026
Transferred at Point in Time | Electronic Industrial Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	216	269	666	778
Transferred over Time
Disaggregation of Revenue [Line Items]
Revenues	171	131	503	379
Transferred over Time | Communications Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	136	105	399	306
Transferred over Time | Electronic Industrial Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	35	26	104	73
Aerospace, defense and government
Disaggregation of Revenue [Line Items]
Revenues	202	243	632	712
Aerospace, defense and government | Communications Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	202	243	632	712
Aerospace, defense and government | Electronic Industrial Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Commercial Communications
Disaggregation of Revenue [Line Items]
Revenues	558	549	1,599	1,620
Commercial Communications | Communications Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	558	549	1,599	1,620
Commercial Communications | Electronic Industrial Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Electronic Industrial
Disaggregation of Revenue [Line Items]
Revenues	251	295	770	851
Electronic Industrial | Communications Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Electronic Industrial | Electronic Industrial Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	251	295	770	851
Americas
Disaggregation of Revenue [Line Items]
Revenues	365	443	1,142	1,271
Americas | Communications Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	321	375	993	1,080
Americas | Electronic Industrial Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	44	68	149	191
Europe
Disaggregation of Revenue [Line Items]
Revenues	159	182	491	540
Europe | Communications Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	94	120	301	344
Europe | Electronic Industrial Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	65	62	190	196
Asia Pacific
Disaggregation of Revenue [Line Items]
Revenues	487	462	1,368	1,372
Asia Pacific | Communications Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	345	297	937	908
Asia Pacific | Electronic Industrial Solutions Group
Disaggregation of Revenue [Line Items]
Revenues	$ 142	$ 165	$ 431	$ 464

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