Financial Instruments - Offsetting Assets and Liabilities (Details) $ in Millions		Oct. 31, 2023 USD ($) businessDay	Oct. 31, 2022 USD ($) businessDay
Derivative assets
Gross Amount Recognized		$ 464	$ 842
Gross Amount Offset		0	0
Net Amount Presented		464	842
Derivative Fair Value of Derivative Asset Gross Amounts not Offset [Abstract]
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset		196	199
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset	[1]	207	508
Derivative Asset, Including Not Subject to Master Netting Arrangement, after Offset and Deduction, Total		61	135
Derivative liabilities
Gross Amount Recognized		305	307
Gross Amount Offset		0	0
Net Amount Presented		305	307
Derivative Fair Value of Derivative Liabilities Gross Amounts not Offset [Abstract]
Derivative Liability, Subject to Master Netting Arrangement, Asset Offset		196	199
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset	[2]	103	$ 113
Derivative Liability, Including Not Subject to Master Netting Arrangement, after Offset and Deduction		$ 6
Business days prior to respective reporting date | businessDay		2	2
Cash collateral posted		$ 56
Counterparty collateral		$ 47	$ 113
Derivative Liability, Statement of Financial Position [Extensible Enumeration]		Other non-current liabilities	Other non-current liabilities
Derivative Asset, Statement of Financial Position [Extensible Enumeration]		Other current assets	Other current assets

[1] Represents the cash collateral posted by counterparties as of the respective reporting date for the Company's asset position, net of derivative amounts that could be offset, as of, generally, two business days prior to the respective reporting date.

[2] Represents the collateral posted by the Company in cash or through re-use of counterparty cash collateral as of the respective reporting date for the Company's liability position, net of derivative amounts that could be offset, as of, generally, two business days prior to the respective reporting date. As of October 31, 2023, of the $103 million of collateral posted, $56 million was in cash and $47 million was through the re-use of counterparty collateral. As of October 31, 2022, the entire amount of the collateral posted of $113 million was through re-use of counterparty collateral.