Subsequent Events (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
	Aug. 26, 2025	Jul. 26, 2025	Jul. 26, 2025	Jul. 27, 2024	Jul. 29, 2023
Subsequent Event [Line Items]
Total cost of sales			$ 19,864	$ 18,975	$ 21,245
Product
Subsequent Event [Line Items]
Total cost of sales			$ 15,121	$ 14,339	$ 16,590
Legal Dispute With A Supplier
Subsequent Event [Line Items]
Income tax benefit		$ 82
Legal Dispute With A Supplier | Product
Subsequent Event [Line Items]
Total cost of sales		$ 355
Legal Dispute With A Supplier | Subsequent event
Subsequent Event [Line Items]
Release of escrow by other party	$ 563
Forfeiture of prepayments	$ 450