Income Taxes - Effective Income Tax Rate Reconciliation (Details)	12 Months Ended
	Apr. 24, 2020	Apr. 26, 2019	Apr. 27, 2018
Income Tax Disclosure [Abstract]
U.S. federal statutory tax rate	21.00%	21.00%	30.50%
Increase (decrease) in tax rate resulting from:
U.S. state taxes, net of federal tax benefit	0.50%	0.90%	0.80%
Research and development credit	(2.10%)	(1.20%)	(0.80%)
Puerto Rico Excise Tax	(1.50%)	(1.60%)	(1.10%)
International	(10.00%)	(10.70%)	(18.90%)
U.S. Tax Reform	0.00%	0.20%	43.00%
Stock based compensation	(1.50%)	(1.00%)	(1.00%)
Other, net	0.40%	(0.50%)	1.60%
Interest on uncertain tax positions	1.30%	0.90%	1.40%
Base Erosion Anti-Abuse Tax	2.60%	0.10%	0.00%
Foreign Derived Intangible Income Benefit	(1.20%)	(0.60%)	0.00%
Divestiture-related	0.00%	(0.40%)	(3.80%)
Certain tax adjustments	(30.80%)	(0.60%)	(8.90%)
U.S. tax on foreign earnings	2.80%	4.00%	2.70%
Effective tax rate	(18.50%)	10.50%	45.50%