Table:
| July 27, 2019 | Gross | Accumulated Amortization | Net |
| --- | --- | --- | --- |
| Purchased intangible assets with finite lives: |  |  |  |
| Technology  . | $3,270 | $(1,933) | $1,337 |
| Customer relationships . | 840 | (331) | 509 |
| Other | 41 | (22) | 19 |
| Total purchased intangible assets with finite lives | 4,151 | (2,286) | 1,865 |
| In-process research and development, with indefinite lives . | 336 | — | 336 |
| Total . | $4,487 | $(2,286) | $2,201 |
Paragraphs:
5. Goodwill and Purchased Intangible Assets
(b) Purchased Intangible Assets
The following tables present details of our purchased intangible assets (in millions):
Purchased intangible assets include intangible assets acquired through acquisitions as well as through direct purchases or licenses.
Impairment charges related to purchased intangible assets were approximately $47 million for fiscal 2017. Impairment charges were as a result of declines in estimated fair value resulting from the reduction or elimination of expected future cash flows associated with certain of our technology and IPR&D intangible assets.
Question:
How much were the impairment charges related to purchased intangible assets for fiscal 2017?
Answer: $47 million