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GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill Roll forward (Details) - USD ($) $ in Millions	6 Months Ended
	Apr. 30, 2019	Oct. 31, 2018
Goodwill [Roll Forward]
Goodwill, Gross	$ 1,883	$ 1,880
Goodwill, Impaired, Accumulated Impairment Loss	(709)	(709)
Goodwill, Beginning balance	1,171
Foreign currency translation impact	3
Balance as of April 30, 2019	1,174
Communications Solutions Group
Goodwill [Roll Forward]
Goodwill, Gross	500	497
Goodwill, Impaired, Accumulated Impairment Loss	0	0
Goodwill, Beginning balance	497
Foreign currency translation impact	3
Balance as of April 30, 2019	500
Electronic Industrial Solutions Group
Goodwill [Roll Forward]
Goodwill, Gross	267	267
Goodwill, Impaired, Accumulated Impairment Loss	0	0
Goodwill, Beginning balance	267
Foreign currency translation impact	0
Balance as of April 30, 2019	267
Ixia Solutions Group
Goodwill [Roll Forward]
Goodwill, Gross	1,116	1,116
Goodwill, Impaired, Accumulated Impairment Loss	(709)	$ (709)
Goodwill, Beginning balance	407
Foreign currency translation impact	0
Balance as of April 30, 2019	$ 407

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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- Definition

Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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