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Revenue (Tables) | 9 Months Ended
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Apr. 26, 2025
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following table presents this disaggregation of revenue (in millions):
| Three Months Ended |  | Nine Months Ended
| April 26, 2025 |  | April 27, 2024 |  | April 26, 2025 |  | April 27, 2024
Product revenue: |  |  |  |  |  |  |
Networking | $ | 7,068 |  |  | $ | 6,522 |  |  | $ | 20,671 |  |  | $ | 22,425 |
Security | 2,013 |  |  | 1,304 |  |  | 6,142 |  |  | 3,288 |
Collaboration | 1,031 |  |  | 987 |  |  | 3,112 |  |  | 3,093 |
Observability | 261 |  |  | 211 |  |  | 796 |  |  | 589 |
Total Product | 10,374 |  |  | 9,024 |  |  | 30,722 |  |  | 29,395 |
Services | 3,775 |  |  | 3,678 |  |  | 11,259 |  |  | 10,766 |
Total | $ | 14,149 |  |  | $ | 12,702 |  |  | $ | 41,981 |  |  | $ | 40,161 |
Our subscription revenue is recorded in product and services revenue in our Consolidated Statements of Operations as follows (in millions):
| Three Months Ended |  | Nine Months Ended
| April 26, 2025 |  | April 27, 2024 |  | April 26, 2025 |  | April 27, 2024
Product | $ | 4,483 |  |  | $ | 3,510 |  |  | $ | 13,334 |  |  | $ | 9,827 |
Services | 3,433 |  |  | 3,344 |  |  | 10,288 |  |  | 9,878 |
Total | $ | 7,916 |  |  | $ | 6,854 |  |  | $ | 23,622 |  |  | $ | 19,705 |
The following table presents revenue for groups of similar products and services (in millions):
| Three Months Ended |  | Nine Months Ended
| April 26, 2025 |  | April 27, 2024 |  | April 26, 2025 |  | April 27, 2024
Revenue: |  |  |  |  |  |  |
Networking | $ | 7,068 |  |  | $ | 6,522 |  |  | $ | 20,671 |  |  | $ | 22,425 |
Security | 2,013 |  |  | 1,304 |  |  | 6,142 |  |  | 3,288 |
Collaboration | 1,031 |  |  | 987 |  |  | 3,112 |  |  | 3,093 |
Observability | 261 |  |  | 211 |  |  | 796 |  |  | 589 |
Total Product | 10,374 |  |  | 9,024 |  |  | 30,722 |  |  | 29,395 |
Services | 3,775 |  |  | 3,678 |  |  | 11,259 |  |  | 10,766 |
Total | $ | 14,149 |  |  | $ | 12,702 |  |  | $ | 41,981 |  |  | $ | 40,161 |
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 |  | Nine Months Ended
| April 26, 2025 |  | April 27, 2024 |  | April 26, 2025 |  | April 27, 2024
Allowance for credit loss at beginning of period | $ | 80 |  |  | $ | 79 |  |  | $ | 87 |  |  | $ | 85 |
Provisions | 13 |  |  | 10 |  |  | 25 |  |  | 21 |
Write-offs, net of recoveries | (11) |  |  | (8) |  |  | (30) |  |  | (25) |
Allowance for credit loss at end of period | $ | 82 |  |  | $ | 81 |  |  | $ | 82 |  |  | $ | 81 |
Schedule of Gross Contract Assets by Internal Risk Ratings | Gross contract assets by our internal risk ratings are summarized as follows (in millions):
| April 26, 2025 |  | July 27, 2024
1 to 4 | $ | 1,245 |  |  | $ | 1,266 |
5 to 6 | 1,762 |  |  | 1,456 |
7 and Higher | 70 |  |  | 72 |
Total | $ | 3,077 |  |  | $ | 2,794 |

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