Note 8—Intangible Assets and Goodwill Indefinite-lived and finite-lived intangible assets consisted of the following: | | | | | | | | | | | | | | | | | | | | | | | | | | September 30, 2019 | | September 30, 2018 | | Gross | | Accumulated Amortization | | Net | | Gross | | Accumulated Amortization | | Net | | (in millions) | Finite-lived intangible assets: | | | | | | | | | | | | Customer relationships | $ | 701 |
| | $ | (314 | ) | | $ | 387 |
| | $ | 452 |
| | $ | (274 | ) | | $ | 178 |
| Trade names | 199 |
| | (120 | ) | | 79 |
| | 199 |
| | (106 | ) | | 93 |
| Reseller relationships | 95 |
| | (86 | ) | | 9 |
| | 95 |
| | (82 | ) | | 13 |
| Other | 17 |
| | (13 | ) | | 4 |
| | 17 |
| | (11 | ) | | 6 |
| Total finite-lived intangible assets | 1,012 |
| | (533 | ) | | 479 |
| | 763 |
| | (473 | ) | | 290 |
| Indefinite-lived intangible assets: | | | | |
|
| | | | | |
|
| Customer relationships and reacquired rights | 22,217 |
| | — |
| | 22,217 |
| | 23,184 |
| | — |
| | 23,184 |
| Visa trade name | 4,084 |
| | — |
| | 4,084 |
| | 4,084 |
| | — |
| | 4,084 |
| Total indefinite-lived intangible assets | 26,301 |
| | — |
| | 26,301 |
| | 27,268 |
| | — |
| | 27,268 |
| Total intangible assets | $ | 27,313 |
| | $ | (533 | ) | | $ | 26,780 |
| | $ | 28,031 |
| | $ | (473 | ) | | $ | 27,558 |
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Amortization expense related to finite-lived intangible assets was $60 million, $55 million and $56 million for fiscal 2019, 2018 and 2017, respectively. At September 30, 2019, estimated future amortization expense on finite-lived intangible assets is as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the Years Ending September 30, | | 2020 | | 2021 | | 2022 | | 2023 | | 2024 | | Thereafter | | Total | | (in millions) | Estimated future amortization expense | $ | 79 |
| | $ | 79 |
| | $ | 73 |
| | $ | 51 |
| | $ | 49 |
| | $ | 146 |
| | $ | 477 |
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The change in goodwill during the years ended September 30, 2019 and 2018 are as follows: | | | | | | | | | | September 30, 2019 | | September 30, 2018 | | (in millions) | Goodwill—beginning of fiscal year | $ | 15,194 |
| | $ | 15,110 |
| Goodwill from acquisitions, net of adjustments | 643 |
| | 130 |
| Foreign currency translation | (181 | ) | | (46 | ) | Goodwill—end of fiscal year | $ | 15,656 |
| | $ | 15,194 |
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For additional information on the current year acquisitions, see Note 2—Acquisitions. There was no impairment related to the Company’s finite-lived or indefinite-lived intangible assets (including goodwill) during fiscal 2019, 2018 or 2017.
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