Taxes on Earnings - Schedule of Domestic and Foreign Components of Earnings (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Domestic and foreign components of earnings (loss) before taxes
U.S.	$ 4,662	$ 884	$ (1,021)
Non-U.S.	2,849	2,347	3,544
Earnings before taxes	$ 7,511	$ 3,231	$ 2,523