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Stockholders' Equity (Tables) | 12 Months Ended
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Jul. 31, 2021
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 summarized as follows (in millions, except per-share amounts):
Years Ended |  | Shares |  | Weighted-Average Price per Share |  | Amount
July 31, 2021 |  | 64 |  |  | $ | 45.48 |  |  | $ | 2,902 |
July 25, 2020 |  | 59 |  |  | $ | 44.36 |  |  | $ | 2,619 |
July 27, 2019 |  | 418 |  |  | $ | 49.22 |  |  | $ | 20,577 |

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