Goodwill and Intangible Assets - Schedule of Allocation and Changes in the Carrying Amount of Goodwill (Details) - USD ($)	3 Months Ended	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Goodwill
Balance at beginning of period		$ 8,541,000,000	$ 6,803,000,000
Acquisitions/adjustments		31,000,000	1,806,000,000
Foreign currency translation		19,000,000	(68,000,000)
Balance at end of period	$ 8,591,000,000	8,591,000,000	8,541,000,000	$ 6,803,000,000
Impairment loss	0		0	0
Personal Systems
Goodwill
Balance at beginning of period		4,695,000,000	2,905,000,000
Acquisitions/adjustments		27,000,000	1,790,000,000
Foreign currency translation		0	0
Balance at end of period	4,722,000,000	4,722,000,000	4,695,000,000	2,905,000,000
Printing
Goodwill
Balance at beginning of period		3,728,000,000	3,796,000,000
Acquisitions/adjustments		4,000,000	0
Foreign currency translation		19,000,000	(68,000,000)
Balance at end of period	3,751,000,000	3,751,000,000	3,728,000,000	3,796,000,000
Corporate Investments
Goodwill
Balance at beginning of period		118,000,000	102,000,000
Acquisitions/adjustments		0	16,000,000
Foreign currency translation		0	0
Balance at end of period	118,000,000	118,000,000	118,000,000	102,000,000
Accumulated impairment losses	$ 800,000,000	$ 800,000,000	$ 800,000,000	$ 800,000,000