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Purchased Intangible Assets, Net (Tables) | 6 Months Ended
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Oct. 28, 2016
Goodwill And Intangible Assets Disclosure [Abstract] |
Purchased Intangible Assets, Net | Purchased intangible assets, net are summarized below (in millions):
|  | October 28, 2016 |  |  | April 29, 2016 |
|  | Gross |  |  | Accumulated |  |  | Net |  |  | Gross |  |  | Accumulated |  |  | Net |
|  | Assets |  |  | Amortization |  |  | Assets |  |  | Assets |  |  | Amortization |  |  | Assets |
Developed technology |  | $ | 148 |  |  | $ | (28 | ) |  | $ | 120 |  |  | $ | 403 |  |  | $ | (289 | ) |  | $ | 114 |
Customer contracts/relationships |  |  | 43 |  |  |  | (11 | ) |  |  | 32 |  |  |  | 46 |  |  |  | (7 | ) |  |  | 39 |
Other purchased intangibles |  |  | 9 |  |  |  | (3 | ) |  |  | 6 |  |  |  | 10 |  |  |  | (2 | ) |  |  | 8 |
Total intangible assets subject to amortization |  |  | 200 |  |  |  | (42 | ) |  |  | 158 |  |  |  | 459 |  |  |  | (298 | ) |  |  | 161 |
In-process research and development |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 19 |  |  |  | — |  |  |  | 19 |
Total purchased intangible assets |  | $ | 200 |  |  | $ | (42 | ) |  | $ | 158 |  |  | $ | 478 |  |  | $ | (298 | ) |  | $ | 180 |
Amortization Expense for Purchased Intangible Assets | Amortization expense for purchased intangible assets is summarized below (in millions):
|  | Three Months Ended |  |  | Six Months Ended |  |  | Statement of
|  | October 28, 2016 |  |  | October 30, 2015 |  |  | October 28, 2016 |  |  | October 30, 2015 |  |  | Operations Classifications
Developed technology |  | $ | 7 |  |  | $ | 14 |  |  | $ | 13 |  |  | $ | 28 |  |  | Cost of revenues
Customer contracts/relationships |  |  | 3 |  |  |  | — |  |  |  | 7 |  |  |  | — |  |  | Operating expenses
Other purchased intangibles |  |  | 1 |  |  |  | — |  |  |  | 2 |  |  |  | — |  |  | Operating expenses
Total |  | $ | 11 |  |  | $ | 14 |  |  | $ | 22 |  |  | $ | 28 |  |  |
Future Amortization Expense Related to Purchased Intangible Assets | As of October 28, 2016, future amortization expense related to purchased intangible assets subject to amortization is as follows (in millions):
Fiscal Year |  | Amount |
Remainder of 2017 |  | $ | 26 |
2018 |  |  | 49 |
2019 |  |  | 42 |
2020 |  |  | 26 |
2021 |  |  | 15 |
Total |  | $ | 158 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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