Financial Instruments - Schedule of Information Related to the Potential Effect of Entity's Master Netting Agreements and Collateral Security Agreements (Details) - USD ($) $ in Millions	9 Months Ended
	Jul. 31, 2024	Oct. 31, 2023
Derivative assets
Gross Amount Recognized	$ 200	$ 489
Gross Amount Offset	0	0
Net Amount Presented	200	489
Gross Amounts Not Offset
Derivatives	135	178
Financial Collateral	47	291
Net Amount	18	20
Derivative liabilities
Gross Amount Recognized	241	272
Gross Amount Offset	0	0
Net Amount Presented	241	272
Gross Amounts Not Offset
Derivatives	135	178
Financial Collateral	107	89
Net Amount	$ (1)	$ 5
Period to collateralize	2 days