Goodwill and Purchased Intangible Assets - Schedule of Amortization of Purchased Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 29, 2022	Oct. 30, 2021
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of purchased intangible assets	$ 71	$ 84
Total
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of purchased intangible assets	229	286
Cost of sales
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of purchased intangible assets	158	202
Operating expenses
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of purchased intangible assets	$ 71	$ 84