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Shareholders' Equity (Tables) | 12 Months Ended
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Jul. 27, 2019
Stockholders' Equity Note [Abstract] |
Stock Repurchase Program | A summary of the stock repurchase activity under the stock repurchase program, reported based on the trade date, is as follows (in millions, except per-share amounts):
Years Ended |  | Shares |  | Weighted-Average Price per Share |  | Amount
July 27, 2019 |  | 418 |  |  | $ | 49.22 |  |  | $ | 20,577 |
July 28, 2018 |  | 432 |  |  | $ | 40.88 |  |  | $ | 17,661 |
July 29, 2017 |  | 118 |  |  | $ | 31.38 |  |  | $ | 3,706 |

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