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Revenue (Tables) | 12 Months Ended
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Jul. 31, 2021
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following table presents this disaggregation of revenue (in millions):
Years Ended | July 31, 2021 |  | July 25, 2020 |  | July 27, 2019
Revenue: |  |  |  |  |
Infrastructure Platforms | $ | 27,109 |  |  | $ | 27,219 |  |  | $ | 30,184 |
Applications | 5,504 |  |  | 5,568 |  |  | 5,803 |
Security | 3,382 |  |  | 3,158 |  |  | 2,822 |
Other Products | 19 |  |  | 33 |  |  | 196 |
Total Product | 36,014 |  |  | 35,978 |  |  | 39,005 |
Services | 13,804 |  |  | 13,323 |  |  | 12,899 |
Total (1) | $ | 49,818 |  |  | $ | 49,301 |  |  | $ | 51,904 |
Amounts may not sum due to rounding. We have made certain reclassifications to the product revenue amounts for prior years to conform to the current year’s presentation. (1) During the second quarter of fiscal 2019, we completed the divestiture of the Service Provider Video Software Solutions (SPVSS) business. Total revenue includes SPVSS business revenue of $168 million for fiscal 2019. The following table presents revenue for groups of similar products and services (in millions):
Years Ended | July 31, 2021 |  | July 25, 2020 |  | July 27, 2019
Revenue: |  |  |  |  |
Infrastructure Platforms | $ | 27,109 |  |  | $ | 27,219 |  |  | $ | 30,184 |
Applications | 5,504 |  |  | 5,568 |  |  | 5,803 |
Security | 3,382 |  |  | 3,158 |  |  | 2,822 |
Other Products | 19 |  |  | 33 |  |  | 196 |
Total Product | 36,014 |  |  | 35,978 |  |  | 39,005 |
Services | 13,804 |  |  | 13,323 |  |  | 12,899 |
Total (1) | $ | 49,818 |  |  | $ | 49,301 |  |  | $ | 51,904 |
(1) Includes SPVSS business revenue of $168 million for fiscal 2019.
Schedule of Gross Contract Assets by Internal Risk Ratings | Gross contract assets by our internal risk ratings are summarized as follows (in millions):
| July 31, 2021
1 to 4 | $ | 521 |
5 to 6 | 770 |
7 and Higher | 166 |
Total | $ | 1,457 |

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