GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

12 Months Ended

Oct. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill balances and movements for each reportable segments during the period

The following table presents goodwill balances and the movements for each of our reportable segments during the years ended October 31, 2018 and 2019:



	Life Sciences and Applied Markets			Diagnostics and Genomics			Agilent CrossLab			Total
	(in millions)
Goodwill as of October 31, 2017	$	773		$	1,330		$	504		$	2,607
Foreign currency translation impact	(7		)	(4		)	(4		)	(15		)
Goodwill arising from acquisitions	37			281			63			381
Goodwill as of October 31, 2018	$	803		$	1,607		$	563		$	2,973
Foreign currency translation impact	(1		)	(2		)	(2		)	(5		)
Goodwill arising from acquisitions and adjustments	636			(11		)	—			625
Goodwill as of October 31, 2019	$	1,438		$	1,594		$	561		$	3,593

Components of other intangibles during the period

The component parts of other intangible assets at October 31, 2018 and 2019 are shown in the table below:



	Other Intangible Assets
	Gross Carrying Amount		Accumulated Amortization and Impairments		Net Book Value
	(in millions)
As of October 31, 2018:
Purchased technology	$	947	$	683	$	264
Trademark/Tradename	151		88		63
Customer relationships	107		63		44
Third-party technology and licenses	$	28	$	19	$	9
Total amortizable intangible assets	$	1,233	$	853	$	380
In-Process R&D	111		—		111
Total	$	1,344	$	853	$	491
As of October 31, 2019:
Purchased technology	$	1,413	$	763	$	650
Backlog	5		5		—
Trademark/Tradename	196		102		94
Customer relationships	329		87		242
Third-party technology and licenses	$	28	$	22	$	6
Total amortizable intangible assets	$	1,971	$	979	$	992
In-Process R&D	115		—		115
Total	$	2,086	$	979	$	1,107

Future Amortization expense for the next five years and thereafter

Future amortization expense related to existing finite-lived purchased intangible assets associated with business combinations for the next five fiscal years and thereafter is estimated below:



Estimated future amortization expense:
	(in millions)
2020	$	186
2021	$	172
2022	$	150
2023	$	107
2024	$	86
Thereafter	$	291