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Segment Information and Major Customers - Additional Information (Details) $ in Millions	3 Months Ended
	Oct. 30, 2021 USD ($) segment	Oct. 24, 2020 USD ($)
Segment Reporting Information [Line Items]
Number of geographic segments | segment	3
Revenue	$ 12,900	$ 11,929
United States
Segment Reporting Information [Line Items]
Revenue	$ 6,800	$ 6,500

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