Income Taxes - Difference Between Income Taxes at Federal Statutory Rate and Provision for Income Taxes (Details)	12 Months Ended
	Jul. 27, 2024	Jul. 29, 2023	Jul. 30, 2022
Income Tax Disclosure [Abstract]
Federal statutory rate	21.00%	21.00%	21.00%
State taxes, net of federal tax benefit	2.80%	2.40%	1.70%
Foreign income at other than U.S. rates	(0.30%)	(0.10%)	0.80%
Tax credits	(2.40%)	(0.30%)	(1.60%)
Foreign-derived intangible income deduction	(5.50%)	(5.80%)	(3.90%)
Stock-based compensation	0.70%	1.10%	0.30%
Other, net	(0.70%)	(0.60%)	0.10%
Total	15.60%	17.70%	18.40%