Employee Benefit Plans - Employee Stock Purchase Plan (Details) - Employee stock purchase plan shares in Millions	12 Months Ended
	Jul. 26, 2025 period shares	Jul. 27, 2024 shares	Jul. 29, 2023 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Consecutive offering period	24 months
Number of purchase periods | period	4
Purchase period	6 months
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date	15.00%
Shares issued under employee purchase plan, shares (in shares)	18	20	19
Shares reserved for issuance (in shares)	50