Supplementary Financial Information - Schedule of Other Non-Current Liabilities (Details) - USD ($) $ in Millions	Jan. 31, 2024	Oct. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Deferred revenue	$ 1,373	$ 1,324
Tax liability	926	904
Operating lease liabilities	$ 815	$ 825
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other non-current liabilities	Other non-current liabilities
Pension, post-retirement, and post-employment liabilities	$ 546	$ 546
Deferred tax liability	31	44
Other	637	688
Other non-current liabilities	$ 4,328	$ 4,331