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Share Repurchases (Narrative) (Details) - USD ($) shares in Thousands, $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Apr. 30, 2023 | May 01, 2022 | Apr. 30, 2023 | May 01, 2022
Statement [Line Items] |  |  |  |
Treasury stock purchased, shares |  |  | 2,692 | 2,700
Shares repurchased, value | $ 75 | $ 51 | $ 141 | $ 116
Capital Stock in Treasury [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Treasury stock purchased, shares | 2,000 | 2,000 | 3,000 | 3,000
Shares repurchased, value | $ 75 | $ 51 | $ 141 | $ 116
June 2021 Program |  |  |  |
Statement [Line Items] |  |  |  |
Authorized amount for shares repurchase | 250 |  | 250 |
Shares repurchased, value |  |  | 67 |
Stock Repurchase Program, Remaining Authorized Repurchase Amount | 104 |  | 104 |
September 2021 Program |  |  |  |
Statement [Line Items] |  |  |  |
Authorized amount for shares repurchase | 500 |  | 500 |
Shares repurchased, value |  |  | 74 |
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ 301 |  | $ 301 |

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