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Stockholders' Equity - Additional Information (Details) - USD ($) |  | 12 Months Ended
--- | --- | ---
Aug. 23, 2022 | Jul. 30, 2022 | Jul. 31, 2021 | Jul. 25, 2020
Stockholders' Equity Note [Abstract] |  |  |  |
Remaining authorized repurchase amount |  | $ 15,200,000,000 |  |
Class of Stock [Line Items] |  |  |  |
Cash dividends paid per common share (in dollars per share) |  | $ 1.50 | $ 1.46 | $ 1.42
Payment of dividends |  | $ 6,224,000,000 | $ 6,163,000,000 | $ 6,016,000,000
Cash dividends declared, per common share (in dollars per share) |  | $ 1.50 | $ 1.46 | $ 1.42
Stock repurchase program |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stock repurchases pending settlement |  | $ 70,000,000 | $ 25,000,000 | $ 0
Subsequent event |  |  |  |
Class of Stock [Line Items] |  |  |  |
Cash dividends declared, per common share (in dollars per share) | $ 0.38 |  |  |

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