Supplementary Financial Information - Schedule of Interest and Other, Net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Interest expense on borrowings	$ (111)	$ (111)	$ (329)	$ (343)
Factoring costs	(32)	(38)	(101)	(117)
Certain litigation benefits	52	0	52	0
Non-operating retirement-related credits	3	4	13	10
Other, net	(4)	32	(16)	40
Interest and other, net	$ (92)	$ (113)	$ (381)	$ (410)