Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 25, 2025	Oct. 26, 2024	Jul. 26, 2025
Loss Contingencies [Line Items]
Commitments and contingencies (Note 14)
Volume of channel partner financing	6,700	$ 6,000
Balance of the channel partner financing subject to guarantees	$ 1,500		1,300
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)	$ 500		300
Inventories
Loss Contingencies [Line Items]
Liability for purchase commitments	$ 185		$ 206