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Balance Sheet and Other Details - Inventories (Details) - USD ($) $ in Millions	Oct. 30, 2021	Jul. 31, 2021
Inventories
Raw materials	$ 1,090	$ 801
Work in process	41	54
Finished goods:
Deferred cost of sales	85	97
Manufactured finished goods	465	422
Total finished goods	550	519
Service-related spares	142	174
Demonstration systems	9	11
Total	$ 1,832	$ 1,559

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