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Goodwill and Purchased Intangible Assets - Schedule of Purchased Intangible Assets with Finite and Indefinite Lives (Details) - USD ($) $ in Millions | Jul. 31, 2021 | Jul. 25, 2020
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Purchased intangible assets with finite lives: |  |
Gross | $ 5,087 | $ 4,084
Accumulated Amortization | (1,973) | (2,721)
Total purchased intangible assets with finite lives, net | 3,114 | 1,363
In-process research and development, with indefinite lives | 505 | 213
Total finite and indefinite lives intangible assets, gross | 5,592 | 4,297
Total finite and indefinite lives intangible assets, net | 3,619 | 1,576
Technology |  |
Purchased intangible assets with finite lives: |  |
Gross | 3,629 | 3,298
Accumulated Amortization | (1,437) | (2,336)
Total purchased intangible assets with finite lives, net | 2,192 | 962
Customer relationships |  |
Purchased intangible assets with finite lives: |  |
Gross | 1,387 | 760
Accumulated Amortization | (523) | (365)
Total purchased intangible assets with finite lives, net | 864 | 395
Other |  |
Purchased intangible assets with finite lives: |  |
Gross | 71 | 26
Accumulated Amortization | (13) | (20)
Total purchased intangible assets with finite lives, net | $ 58 | $ 6

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