v3.10.0.1

Shareholders' Equity (Additional Information) (Details) - USD ($) $ / shares in Units, shares in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Oct. 27, 2018 | Oct. 28, 2017 | Jul. 28, 2018 | Feb. 14, 2018
Class of Stock [Line Items] |  |  |  |
Cash dividends paid per common share (in dollars per share) | $ 0.33 | $ 0.29 |  |
Payments of dividends | $ 1,500,000,000 | $ 1,436,000,000 |  |
Authorized additional repurchase amount |  |  |  | $ 25,000,000,000
Remaining authorized repurchase amount | $ 14,000,000,000 |  |  |
Shares repurchased for tax withholdings on vesting of restricted stock units (in shares) | 7 | 11 |  |
Payments related to tax withholding for share-based compensation | $ 318,000,000 | $ 342,000,000 |  |
Stock repurchase program |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stock repurchases pending settlement | $ 130,000,000 |  | $ 180,000,000 |

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