Goodwill and Intangible Assets (Tables)

12 Months Ended

Oct. 31, 2018

Goodwill and related changes in the carrying amount by reportable segment were as follows:



	Hybrid IT			Intelligent Edge		Financial Services		Total
	In millions
Balance at October 31, 2016	$	14,045		$	1,901	$	144	$	16,090
Goodwill acquired during the period	1,410			17		—		1,427
Changes due to foreign currency	1			—		—		1
Goodwill adjustments	(2		)	—		—		(2		)
Balance at October 31, 2017	15,454			1,918		144		17,516
Goodwill acquired during the period	101			3		—		104
Impairment of goodwill	(88		)	—		—		(88		)
Changes due to foreign currency	6			—		—		6
Goodwill adjustments	(1		)	—		—		(1		)
Balance at October 31, 2018	$	15,472		$	1,921	$	144	$	17,537

Intangible assets comprise:



	As of October 31, 2018							As of October 31, 2017
	Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
	In millions
Customer contracts, customer lists and distribution agreements	$	272	$	(142	)	$	130	$	268	$	(71	)	$	197
Developed and core technology and patents	1,121		(525		)	596		1,133		(427		)	706
Trade name and trade marks	87		(42		)	45		87		(23		)	64
In-process research and development	18		—			18		75		—			75
Total intangible assets	$	1,498	$	(709	)	$	789	$	1,563	$	(521	)	$	1,042

As of October 31, 2018, the weighted-average remaining useful lives of the Company's finite-lived intangible assets were as follows:



Finite-Lived Intangible Assets	Weighted-Average Remaining Useful Lives
	In years
Customer contracts, customer lists and distribution agreements	4
Developed and core technology and patents	4
Trade name and trade marks	4

As of October 31, 2018, estimated future amortization expense related to finite-lived intangible assets was as follows: