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Derivative Instruments - Schedule of Notional Amounts of Derivatives Outstanding (Details) - USD ($) $ in Millions | Jan. 27, 2024 | Jul. 29, 2023
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Derivative [Line Items] |  |
Derivatives | $ 8,586 | $ 7,711
Foreign currency derivatives |  |
Derivative [Line Items] |  |
Derivatives | 6,207 | 5,419
Interest rate derivatives |  |
Derivative [Line Items] |  |
Derivatives | 1,500 | 1,500
Total return swaps—deferred compensation |  |
Derivative [Line Items] |  |
Derivatives | $ 879 | $ 792

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