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Balance Sheet Details - Inventory (Details) - USD ($) $ in Millions	Oct. 31, 2021	Oct. 31, 2020
Balance Sheet Related Disclosures [Abstract]
Finished goods	$ 1,684	$ 1,197
Purchased parts and fabricated assemblies	2,827	1,477
Total	$ 4,511	$ 2,674

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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