Segment Information - Schedule of Reconciliation of Segment Operating Results to HP Consolidated Results (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2024	Jan. 31, 2023
Net revenue:
Total net revenue	$ 13,185	$ 13,798
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Total segment earnings from operations	935	743
Restructuring and other charges	(63)	(141)
Acquisition and divestiture charges	(27)	(84)
Amortization of intangible assets	(81)	(85)
Interest and other, net	(142)	(181)
Earnings before taxes	793	562
Operating Segments
Net revenue:
Total net revenue	13,186	13,798
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Total segment earnings from operations	1,372	1,312
Other
Net revenue:
Total net revenue	(1)	0
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Stock-based compensation expense	(177)	(167)
Restructuring and other charges	(63)	(141)
Acquisition and divestiture charges	(27)	(84)
Amortization of intangible assets	(81)	(85)
Interest and other, net	(142)	(181)
Corporate and unallocated costs and other
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Corporate and unallocated costs and other	(89)	(92)
Personal Systems | Operating Segments
Net revenue:
Total net revenue	8,809	9,185
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Total segment earnings from operations	537	475
Printing | Operating Segments
Net revenue:
Total net revenue	4,375	4,612
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Total segment earnings from operations	872	870
Corporate Investments | Operating Segments
Net revenue:
Total net revenue	2	1
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Total segment earnings from operations	(37)	(33)
Commercial PS | Personal Systems | Operating Segments
Net revenue:
Total net revenue	6,045	6,382
Consumer PS | Personal Systems | Operating Segments
Net revenue:
Total net revenue	2,764	2,803
Supplies | Printing | Operating Segments
Net revenue:
Total net revenue	2,863	2,857
Commercial Printing | Printing | Operating Segments
Net revenue:
Total net revenue	1,227	1,388
Consumer Printing | Printing | Operating Segments
Net revenue:
Total net revenue	$ 285	$ 367