Net Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Millions			12 Months Ended
		Nov. 01, 2015	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Numerator:
Net earnings			$ 3,161	$ 2,461	$ 1,648
Denominator:
Weighted-average shares used to compute basic net EPS (shares)	[1]		1,715,000,000	1,804,000,000	1,804,000,000
Dilutive effect of employee stock plans (shares)			24,000,000	30,000,000	30,000,000
Weighted-average shares used to compute diluted net EPS (shares)	[1]		1,739,000,000	1,834,000,000	1,834,000,000
Net earnings per share:
Basic (in dollars per share)	[1]		$ 1.84	$ 1.36	$ 0.91
Diluted (in dollars per share)	[1]		$ 1.82	$ 1.34	$ 0.90
Anti-dilutive weighted average stock awards (in shares)			32,000,000	28,000,000	28,000,000
HP Inc.
Other information related to EPS computation
Shares distributed (shares)		1

[1] On November 1, 2015, HP Inc. (formerly Hewlett-Packard Company) distributed a total of 1.8 billion shares of Hewlett Packard Enterprise common stock to HP Inc. stockholders as of the record date. The number of shares used to compute basic and diluted net earnings per share ("EPS") for the period ended October 31, 2015 is used for the calculation of net EPS for October 31, 2014. See Note 16, "Net Earnings Per Share", for further details.