Supplementary Financial Information - Trade Receivables Sold and Cash Received (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Receivables Sold but Not Collected from Third Party
Balance at beginning of year	$ 185	$ 131	$ 188
Trade receivables sold	13,391	12,028	11,976
Cash receipts	(13,449)	(11,942)	(12,035)
Foreign currency and other	14	(32)	2
Balance at end of year	$ 141	$ 185	$ 131