Derivative Instruments - Cumulative Basis Adjustments for Fair Value Hedges (Details) - Derivatives designated as hedging instruments - Short-term debt - USD ($) $ in Millions |
Jul. 26, 2025 |
Jul. 27, 2024 |
|---|---|---|
| Derivative [Line Items] | ||
| CARRYING AMOUNT OF THE HEDGED ASSETS/(LIABILITIES) | $ 0 | $ (488) |
| CUMULATIVE AMOUNT OF FAIR VALUE HEDGING ADJUSTMENT INCLUDED IN THE CARRYING AMOUNT OF THE HEDGED ASSETS/LIABILITIES | $ 0 | $ 11 |