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Stock-Based Compensation (Tables) | 3 Months Ended
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Jul. 28, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Components and Classification of Stock-based Compensation Expense | The following table presents the components and classification of stock-based compensation expense for stock options, restricted stock, and employee stock purchase plan shares recognized for the three months ended July 28, 2017 and July 29, 2016:
| Three months ended
(in millions) | July 28, 2017 |  | July 29, 2016
Stock options | $ | 35 |  |  | $ | 38 |
Restricted stock | 48 |  |  | 34 |
Employee stock purchase plan | 9 |  |  | 7 |
Total stock-based compensation expense | $ | 92 |  |  | $ | 79 |
Cost of products sold | $ | 10 |  |  | $ | 11 |
Research and development expense | 9 |  |  | 9 |
Selling, general, and administrative expense | 55 |  |  | 51 |
Restructuring charges | — |  |  | 1 |
Acquisition-related items | 2 |  |  | 7 |
Divestiture-related items | 16 |  |  | — |
Total stock-based compensation expense | 92 |  |  | 79 |
Income tax benefits | (25 | ) |  | (21 | )
Total stock-based compensation expense, net of tax | $ | 67 |  |  | $ | 58 |

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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