Supplementary Financial Information - Interest and Other, Net (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2023	Jan. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Interest expense on borrowings	$ (143)	$ (61)
Loss on extinguishment of debt	(8)	0
Non-operating retirement-related credits	11	36
Other, net	(41)	(7)
Interest and other, net	$ (181)	$ (32)