Goodwill (Tables)

9 Months Ended

Jul. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Allocation and Changes in the Carrying Amount of Goodwill

Goodwill allocated to the Company's reportable segments as of July 31, 2018 and the change in the respective carrying amounts during the nine months then ended were as follows:

	Hybrid IT			Intelligent Edge		Financial Services		Total
	In millions
Balance at October 31, 2017	$	15,454		$	1,918	$	144	$	17,516
Goodwill acquired during the period	102			3		—		105
Changes due to foreign currency	(1		)	—		—		(1		)
Goodwill adjustments	6			—		—		6
Balance at July 31, 2018	$	15,561		$	1,921	$	144	$	17,626