Balance Sheet and Other Details - Inventories (Details) - USD ($) $ in Millions	Jan. 29, 2022	Jul. 31, 2021
Inventories
Raw materials	$ 1,284	$ 801
Work in process	50	54
Finished goods:
Deferred cost of sales	80	97
Manufactured finished goods	522	422
Total finished goods	602	519
Service-related spares	116	174
Demonstration systems	7	11
Total	$ 2,059	$ 1,559

Inventory, Demonstration Systems, Net Of Reserves

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Inventory, Finished Goods, Deferred Cost Of Sales, Net Of Reserves

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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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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date for elements of machinery or equipment held for the purpose of replacing similar parts in the course of repair or maintenance.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.

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Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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

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