Goodwill and Purchased Intangible Assets - Schedule of Amortization of Purchased Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 28, 2023	Jan. 29, 2022	Jan. 28, 2023	Jan. 29, 2022
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of purchased intangible assets	$ 71	$ 79	$ 142	$ 163
Total
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of purchased intangible assets	229	280	458	566
Cost of sales
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of purchased intangible assets	158	201	316	403
Operating expenses
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of purchased intangible assets	$ 71	$ 79	$ 142	$ 163