Segment Information - Schedule of Reconciliation of Segment Operating Results to HP Consolidated Results (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2023	Jan. 31, 2022
Net revenue:
Net revenue	$ 13,828	$ 17,028
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Total segment earnings from operations	765	1,359
Restructuring and other charges	(141)	(68)
Acquisition and divestiture charges	(84)	(20)
Amortization of intangible assets	(85)	(52)
Interest and other, net	(181)	(32)
Earnings before taxes	584	1,327
Operating segments
Net revenue:
Net revenue	13,828	17,028
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Total segment earnings from operations	1,334	1,752
Other
Net revenue:
Net revenue	0	0
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Stock-based compensation expense	(167)	(133)
Restructuring and other charges	(141)	(68)
Acquisition and divestiture charges	(84)	(20)
Amortization of intangible assets	(85)	(52)
Interest and other, net	(181)	(32)
Corporate and unallocated costs and other
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Corporate and unallocated costs and other	(92)	(120)
Personal Systems | Operating segments
Net revenue:
Net revenue	9,215	12,196
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Total segment earnings from operations	497	954
Personal Systems | Commercial PS | Operating segments
Net revenue:
Net revenue	6,429	7,857
Personal Systems | Consumer PS | Operating segments
Net revenue:
Net revenue	2,786	4,339
Printing | Operating segments
Net revenue:
Net revenue	4,612	4,831
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Total segment earnings from operations	870	872
Printing | Supplies | Operating segments
Net revenue:
Net revenue	2,857	3,068
Printing | Commercial Printing | Operating segments
Net revenue:
Net revenue	1,056	1,039
Printing | Consumer Printing | Operating segments
Net revenue:
Net revenue	699	724
Corporate Investments | Operating segments
Net revenue:
Net revenue	1	1
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Total segment earnings from operations	$ (33)	$ (74)