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Acquisitions - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions |  | 3 Months Ended | 4 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Mar. 18, 2024 | Apr. 27, 2024 | Jul. 27, 2024 | Jul. 27, 2024 | Jul. 29, 2023 | Jul. 30, 2022
Business Acquisition [Line Items] |  |  |  |  |  |
Settlement of convertible debt, net |  |  |  | $ 3,140 | $ 0 | $ 0
Future compensation expense & contingent consideration (up to) |  |  | $ 1,600 | 1,600 |  |
Cash and cash equivalents acquired |  |  |  |  | 7 |
Total purchase consideration |  |  |  |  | 315 | 364
Splunk |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquisition price (in dollars per share) | $ 157 |  |  |  |  |
Equity value of acquisition | $ 27,000 |  |  |  |  |
Revenue since date of acquisition |  |  |  | 1,400 |  |
Net loss since date of acquisition |  |  |  | 557 |  |
Total transaction costs | 82 |  |  | 79 |  |
Commercial paper, maximum borrowing limit (up to) | 3,100 |  |  |  |  |
Aggregate cash proceeds |  | $ 202 |  |  |  |
Settlement of convertible debt, net |  |  | 3,100 |  |  |
Compensation expense related to acquisitions |  |  |  | 413 |  |
Future compensation expense & contingent consideration (up to) |  |  | $ 1,100 | 1,100 |  |
Total purchase consideration | 27,090 |  |  |  |  |
Splunk | Convertible Debt |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Borrowings, fair value | $ 3,300 |  |  |  |  |
Splunk | Fixed-Rate Notes 1.125%, Due 2025 | Convertible Debt |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Interest rate, stated percentage | 1.125% |  |  |  |  |
Splunk | Fixed-Rate Notes 0.75%, Due 2026 | Convertible Debt |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Interest rate, stated percentage | 0.75% |  |  |  |  |
Splunk | Fixed-Rate Notes 1.125%, Due 2027 | Convertible Debt |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Interest rate, stated percentage | 1.125% |  |  |  |  |
Acquisitions |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Total transaction costs |  |  |  | 25 | $ 24 | $ 49
Cash and cash equivalents acquired |  |  |  | 24 |  |
Total purchase consideration |  |  |  | $ 1,370 |  |

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