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Income Taxes - Statutory Federal Income Tax Rate (Detail) - USD ($) $ in Millions | 12 Months Ended
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Apr. 24, 2020 | Apr. 26, 2019 | Apr. 27, 2018
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |  |
Tax computed at federal statutory rate |  | $ 198 | $ 266 | $ 366
State income taxes, net of federal benefit |  | 10 | 16 | 18
Foreign earnings in lower tax jurisdictions | [1] | (40) | (84) | (108)
Stock-based compensation |  | (4) | (19) | (23)
Research and development credits |  | (16) | (17) | (10)
Global minimum tax on intangible income |  | 32 | 22 | 0
Transition tax and related reserves |  | 15 | (5) | 732
Tax rate changes |  | 0 | 0 | 108
Resolution of income tax matters | [2] | (61) | (48) | 0
Non-taxable gain on joint venture formation |  | 0 | (14) | 0
Domestic production activities deduction |  | 0 | (13) | (7)
Other |  | (9) | (5) | 7
Provision for income taxes |  | $ 125 | $ 99 | $ 1,083
[1] | For fiscal 2020, 2019 and 2018, we generated foreign earnings in lower tax jurisdictions primarily related to income from our European operations.
[2] | During fiscal 2020, we recognized a tax benefit related to the lapse of statutes of limitations on our fiscal 2014 and 2015 federal income tax returns. During fiscal 2019, the Internal Revenue Service completed the examination of our fiscal 2012 to fiscal 2013 federal income tax returns, and we recognized a tax benefit attributable to the effective settlement and the release of related tax reserves.

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- Definition Amount 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 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=116821951&loc=d3e32059-109318 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -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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- Definition Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for award under share-based payment arrangement. Includes, but is not limited to, expense determined to be nondeductible upon grant or after for award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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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