Supplementary Financial Information - Other Non-Current Liabilities (Details) - USD ($) $ in Millions	Oct. 31, 2022	Oct. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Deferred revenue	$ 1,171	$ 1,099
Tax liability	911	860
Operating lease liabilities	875	936
Pension, post-retirement, and post-employment liabilities	600	1,020
Deferred tax liability	121	57
Other	856	830
Other non-current liabilities	$ 4,534	$ 4,802