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Net Income (Loss) per Share (Tables) | 9 Months Ended
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Jan. 26, 2018
Earnings Per Share [Abstract] |
Computation of Basic and Diluted Net Income (Loss) Per Share | The following is a calculation of basic and diluted net income (loss) per share (in millions, except per share amounts):
|  | Three Months Ended |  |  | Nine Months Ended |
|  | January 26, 2018 |  |  | January 27, 2017 |  |  | January 26, 2018 |  |  | January 27, 2017 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  | $ | (506 | ) |  | $ | 146 |  |  | $ | (195 | ) |  | $ | 319 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares used in basic computation |  |  | 268 |  |  |  | 274 |  |  |  | 269 |  |  |  | 277 |
Dilutive impact of employee equity award plans |  |  | — |  |  |  | 7 |  |  |  | — |  |  |  | 5 |
Shares used in diluted computation |  |  | 268 |  |  |  | 281 |  |  |  | 269 |  |  |  | 282 |
Net Income (Loss) per Share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | (1.89 | ) |  | $ | 0.53 |  |  | $ | (0.72 | ) |  | $ | 1.15 |
Diluted |  | $ | (1.89 | ) |  | $ | 0.52 |  |  | $ | (0.72 | ) |  | $ | 1.13 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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