Document and Entity Information	3 Months Ended
	Jan. 31, 2019 shares
Document and Entity Information
Entity Registrant Name	HP Inc.
Entity Central Index Key	0000047217
Document Type	10-Q
Document Period End Date	Jan. 31, 2019
Amendment Flag	false
Current Fiscal Year End Date	--10-31
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding	1,539,371,597
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1