TD Ameritrade 2018 Annual Report

TD AMERITRADE HOLDING CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) 69 Acquired intangible assets consist of the following (dollars in millions): September 30, 2018 2017 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Client relationships . . . . . . . $ 2,183 $ (1,003) $ 1,180 $ 2,183 $ (877) $ 1,306 Technology and content . . . 108 (108) — 108 (100) 8 Trade names . . . . . . . . . . . . 10 (7) 3 10 — 10 Trademark license. . . . . . . . 146 — 146 146 — 146 $ 2,447 $ (1,118) $ 1,329 $ 2,447 $ (977) $ 1,470 Amortization expense on acquired intangible assets was $141 million, $79 million and $86 million for fiscal years 2018, 2017 and 2016, respectively. Estimated future amortization expense for acquired finite-lived intangible assets outstanding as of September 30, 2018 is as follows (dollars in millions): Fiscal Year Estimated Amortization Expense 2019 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 124 2020 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 2021 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 2022 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 2023 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Thereafter (to 2035). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 657 Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 1,183