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Commitments and Contingencies - Additional Information (Detail) - USD ($) | 3 Months Ended |
--- | --- | ---
Jul. 31, 2015 | Jul. 25, 2014 | Apr. 24, 2015
Commitments and Contingencies Disclosure [Line Items] |  |  |
Future annual minimum lease payments | $ 205,000,000 |  |
Accrued purchase commitments with contract manufacturers | 16,000,000 |  | $ 17,000,000
Sale of finance receivables | 42,000,000 | $ 52,000,000 |
Legal proceedings and claims | $ 0 |  |
Maximum |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Terms of recourse leases | 3 years |  |
Inventory |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Purchase orders and other commitments | $ 262,000,000 |  |
Construction Related |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Purchase orders and other commitments | 45,000,000 |  |
Other |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Purchase orders and other commitments | $ 178,000,000 |  |

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- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
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- Definition The cash inflow associated with the sale or collection of receivables arising from the financing of goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 + Details
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- Definition Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a)(19)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.25) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.17) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 7 + Details
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