GOODWILL AND OTHER INTANGIBLE ASSETS

6 Months Ended

Apr. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

The goodwill balances as of April 30, 2019 and October 31, 2018 and the activity for the six months ended April 30, 2019 for each of our reportable operating segments were as follows. Prior period amounts have been reclassified to conform to our organizational change as described in Note 16, "Segment Information."



	Communications Solutions Group		Electronic Industrial Solutions Group		Ixia Solutions Group			Total
	(in millions)
Balance as of October 31, 2018:
Goodwill	$	497	$	267	$	1,116		$	1,880
Accumulated impairment losses	—		—		(709		)	(709		)
Goodwill as reported	497		267		407			1,171
Foreign currency translation impact	3		—		—			3
Balance as of April 30, 2019	$	500	$	267	$	407		$	1,174

Components of goodwill as of April 30, 2019:
Goodwill	$	500	$	267	$	1,116		$	1,883
Accumulated impairment losses	—		—		(709		)	(709		)
Goodwill as reported	$	500	$	267	$	407		$	1,174

The company has not identified any triggering events that indicate an impairment of goodwill in the six months ended April 30, 2019.

Other intangible assets as of April 30, 2019 and October 31, 2018 consisted of the following:



	Other Intangible Assets as of April 30, 2019						Other Intangible Assets as of October 31, 2018
	Gross Carrying Amount		Accumulated Amortization and Impairments		Net Book Value		Gross Carrying Amount		Accumulated Amortization and Impairments		Net Book Value
	(in millions)
Developed technology	$	835	$	494	$	341	$	835	$	415	$	420
Backlog	13		13		—		13		13		—
Trademark/Tradename	33		17		16		33		14		19
Customer relationships	304		120		184		304		100		204
Non-compete agreements	1		—		1		1		—		1
Total amortizable intangible assets	1,186		644		542		1,186		542		644
In-Process R&D	1		—		1		1		—		1
Total	$	1,187	$	644	$	543	$	1,187	$	542	$	645

During the six months ended April 30, 2019, there was no foreign exchange translation impact to other intangible assets. For both the three and six months ended April 30, 2019 and 2018, amortization of other intangible assets was $51 million and $102 million, respectively.

Estimated intangible assets amortization expense for each of the five succeeding fiscal years is as follows:



	Amortization expense
	(in millions)
2019 (remainder)	$	101
2020	196
2021	128
2022	52
2023	44
Thereafter	21