Note 8—Intangible Assets and Goodwill Indefinite-lived and finite-lived intangible assets consisted of the following: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | September 30, | | 2024 | | 2023 | | | Gross | | Accumulated Amortization | | Net | | Gross | | Accumulated Amortization | | Net | | | (in millions) | | Finite-lived intangible assets: | | | | | | | | | | | | | Customer relationships | $ | 535 | | | $ | (298) | | | $ | 237 | | | $ | 829 | | | $ | (572) | | | $ | 257 | | | Trade names | 190 | | | (179) | | | 11 | | | 195 | | | (172) | | | 23 | | | | | | | | | | | | | | | Other | — | | | — | | | — | | | 111 | | | (111) | | | — | | | Total finite-lived intangible assets | 725 | | | (477) | | | 248 | | | 1,135 | | | (855) | | | 280 | | | Indefinite-lived intangible assets: | | | | | | | | | | | | Customer relationships and reacquired rights | 22,557 | | | — | | | 22,557 | | | 21,740 | | | — | | | 21,740 | | | Visa trade name | 4,084 | | | — | | | 4,084 | | | 4,084 | | | — | | | 4,084 | | | Total indefinite-lived intangible assets | 26,641 | | | — | | | 26,641 | | | 25,824 | | | — | | | 25,824 | | | Total intangible assets | $ | 27,366 | | | $ | (477) | | | $ | 26,889 | | | $ | 26,959 | | | $ | (855) | | | $ | 26,104 | |
For fiscal 2024, 2023 and 2022, amortization expense related to finite-lived intangible assets was $79 million, $76 million and $90 million, respectively. As of September 30, 2024, estimated future amortization expense on finite-lived intangible assets was as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the Years Ending September 30, | | 2025 | | 2026 | | 2027 | | 2028 | | 2029 | | Thereafter | | Total | | (in millions) | | Estimated future amortization expense | $ | 67 | | | $ | 51 | | | $ | 49 | | | $ | 32 | | | $ | 18 | | | $ | 31 | | | $ | 248 | |
The changes in goodwill were as follows: | | | | | | | | | | | | | For the Years Ended September 30, | | 2024 | | 2023 | | (in millions) | Balance as of beginning of period | $ | 17,997 | | | $ | 17,787 | | | Goodwill from acquisitions | 790 | | | — | | | Foreign currency translation | 154 | | | 210 | | Balance as of end of period | $ | 18,941 | | | $ | 17,997 | |
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