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Income Taxes - Effective Income Tax Rate Reconciliation (Details) | 12 Months Ended
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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%

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- Definition The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to Puerto Rico excise tax from intercompany purchases. + References No definition available. + Details
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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