Supplementary Financial Information - Interest and Other, Net (Details) - USD ($)	3 Months Ended		6 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Interest expense on borrowings	$ (153,000,000)	$ (74,000,000)	$ (297,000,000)	$ (136,000,000)
Loss on extinguishment of debt	0	0	(8,000,000)	0
Non-operating retirement-related credits	13,000,000	36,000,000	25,000,000	72,000,000
Factoring costs	(30,000,000)	0	(62,000,000)	0
Other, net	10,000,000	(1,000,000)	1,000,000	(7,000,000)
Interest and other, net	$ (160,000,000)	(39,000,000)	$ (341,000,000)	(71,000,000)
Selling, General and Administrative Expenses
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Factoring costs		$ 0		$ 0