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Revenue (Tables) | 3 Months Ended
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Oct. 25, 2025
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following table presents this disaggregation of revenue (in millions):
| Three Months Ended
| October 25, 2025 |  | October 26, 2024
Product revenue: |  |  |
Networking | $ | 7,768 |  |  | $ | 6,753 |
Security | 1,980 |  |  | 2,017 |
Collaboration | 1,055 |  |  | 1,085 |
Observability | 274 |  |  | 258 |
Total Product | 11,077 |  |  | 10,114 |
Services | 3,806 |  |  | 3,727 |
Total revenue | $ | 14,883 |  |  | $ | 13,841 |
Our subscription revenue is recorded in product and services revenue in our Consolidated Statements of Operations as follows (in millions):
| Three Months Ended
| October 25, 2025 |  | October 26, 2024
Product | $ | 4,500 |  |  | $ | 4,419 |
Services | 3,500 |  |  | 3,425 |
Total | $ | 8,000 |  |  | $ | 7,844 |
The following table presents revenue for groups of similar products and services (in millions):
| Three Months Ended
| October 25, 2025 |  | October 26, 2024
Revenue: |
Networking | $ | 7,768 |  |  | $ | 6,753 |
Security | 1,980 |  |  | 2,017 |
Collaboration | 1,055 |  |  | 1,085 |
Observability | 274 |  |  | 258 |
Total Product | 11,077 |  |  | 10,114 |
Services | 3,806 |  |  | 3,727 |
Total | $ | 14,883 |  |  | $ | 13,841 |
Allowance for Credit Loss for Accounts Receivable | The allowances for credit loss for our accounts receivable are summarized as follows (in millions):
| Three Months Ended
| October 25, 2025 |  | October 26, 2024
Allowance for credit loss at beginning of period | $ | 69 |  |  | $ | 87 |
Provisions | (4) |  |  | — |
Write-offs, net of recoveries | (3) |  |  | (9) |
Allowance for credit loss at end of period | $ | 62 |  |  | $ | 78 |
Schedule of Gross Contract Assets by Internal Risk Ratings | Gross contract assets by our internal risk ratings are summarized as follows (in millions):
| October 25, 2025 |  | July 26, 2025
1 to 4 | $ | 1,379 |  |  | $ | 1,358 |
5 to 6 | 2,001 |  |  | 1,868 |
7 and Higher | 75 |  |  | 73 |
Total | $ | 3,455 |  |  | $ | 3,299 |

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