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Supplemental Financial Information (Other Current Assets) (Details) - USD ($) $ in Millions	Jul. 31, 2022	Oct. 31, 2021
Prepaid Expense and Other Assets, Current [Abstract]
Prepaid expenses	$ 728	$ 539
Other Assets, Miscellaneous, Current	310	516
Total other current assets	$ 1,038	$ 1,055

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Amount of current assets classified as other.

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Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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