Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Apr. 26, 2025	Apr. 27, 2024	Apr. 26, 2025	Apr. 27, 2024	Jul. 27, 2024
Loss Contingencies [Line Items]
Commitments and contingencies (Note 14)
Volume of channel partner financing	5,900	$ 18,100	6,100	$ 20,900
Balance of the channel partner financing subject to guarantees	1,200		$ 1,200		1,200
Minimum
Loss Contingencies [Line Items]
Warranty period for products			90 days
Channel partners revolving short-term financing payment term			60 days
Maximum
Loss Contingencies [Line Items]
Warranty period for products			5 years
Channel partners revolving short-term financing payment term			90 days
Investments In Privately Held Companies
Loss Contingencies [Line Items]
Commitments and contingencies (Note 14)	300		$ 300		200
Inventories
Loss Contingencies [Line Items]
Liability for purchase commitments	$ 246		$ 246		$ 498