Income Taxes - Difference Between Income Taxes at Federal Statutory Rate and Provision for Income Taxes (Details)	12 Months Ended
	Jul. 26, 2025	Jul. 27, 2024	Jul. 29, 2023
Income Tax Disclosure [Abstract]
Federal statutory rate	21.00%	21.00%	21.00%
State taxes, net of federal tax benefit	1.30%	2.80%	2.40%
Foreign income at other than U.S. rates	0.70%	(0.30%)	(0.10%)
Tax credits	(2.70%)	(2.40%)	(0.30%)
Foreign-derived intangible income deduction	(6.00%)	(5.50%)	(5.80%)
Stock-based compensation	0.70%	0.70%	1.10%
Impact of the Tax Act	(6.50%)	0.00%	0.00%
Other, net	(0.20%)	(0.70%)	(0.60%)
Total	8.30%	15.60%	17.70%