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Net Income per Share (Tables) | 9 Months Ended
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Jan. 29, 2016
Earnings Per Share [Abstract] |
Computation of Basic and Diluted Net Income Per Share | The following is a calculation of basic and diluted net income per share (in millions, except per share amounts):
|  | Three Months Ended |  |  | Nine Months Ended |
|  | January 29, 2016 |  |  | January 23, 2015 |  |  | January 29, 2016 |  |  | January 23, 2015 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 153 |  |  | $ | 177 |  |  | $ | 237 |  |  | $ | 425 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares used in basic computation |  |  | 293 |  |  |  | 312 |  |  |  | 297 |  |  |  | 318 |
Dilutive impact of employee equity award plans |  |  | 3 |  |  |  | 5 |  |  |  | 3 |  |  |  | 5 |
Shares used in diluted computation |  |  | 296 |  |  |  | 317 |  |  |  | 300 |  |  |  | 323 |
Net Income per Share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.52 |  |  | $ | 0.57 |  |  | $ | 0.80 |  |  | $ | 1.34 |
Diluted |  | $ | 0.52 |  |  | $ | 0.56 |  |  | $ | 0.79 |  |  | $ | 1.31 |

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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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