Financial Instruments - Schedule of Information Related to the Potential Effect of Entity's Master Netting Agreements and Collateral Security Agreements (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2024	Oct. 31, 2023
Derivative assets
Gross Amount Recognized	$ 214	$ 489
Gross Amount Offset	0	0
Net Amount Presented	214	489
Gross Amounts Not Offset
Derivatives	170	178
Financial Collateral	40	291
Net Amount	4	20
Derivative liabilities
Gross Amount Recognized	291	272
Gross Amount Offset	0	0
Net Amount Presented	291	272
Gross Amounts Not Offset
Derivatives	170	178
Financial Collateral	109	89
Net Amount	$ 12	$ 5
Period to collateralize	2 days