Acquisitions and Divestitures - Summary of Allocation of Total Purchase Consideration (Details) $ in Millions	12 Months Ended
	Jul. 30, 2022 USD ($) acquisition	Jul. 31, 2021 USD ($) acquisition	Jul. 25, 2020 USD ($) acquisition
Business Acquisition [Line Items]
Number of business combinations (acquisition) | acquisition	3		6
Purchase Consideration	$ 364	$ 7,455	$ 359
Net Tangible Assets Acquired (Liabilities Assumed)	12	312
Purchased Intangible Assets	20	2,914
Goodwill	$ 332	4,229
Acacia
Business Acquisition [Line Items]
Purchase Consideration		4,983
Net Tangible Assets Acquired (Liabilities Assumed)		442
Purchased Intangible Assets		2,160
Goodwill		$ 2,381
Others
Business Acquisition [Line Items]
Number of business combinations (acquisition) | acquisition		12
Purchase Consideration		$ 2,472
Net Tangible Assets Acquired (Liabilities Assumed)		(130)
Purchased Intangible Assets		754
Goodwill		$ 1,848