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Intangible Assets and Goodwill (Tables) | 3 Months Ended
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Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible assets | Intangible assets, net of accumulated amortization, impairment charges and adjustments are summarized as follows:
|  |  |  | As of March 31, 2023 |  | As of December 31, 2022
(In millions) |  | Estimated Life |  | Cost |  | Accumulated Amortization |  | Net |  | Cost |  | Accumulated Amortization |  | Net
Completed technology |  | 4-28 years |  | $ | 7,428.7 |  |  | $ | (5,679.4) |  |  | $ | 1,749.3 |  |  | $ | 7,415.3 |  |  | $ | (5,629.2) |  |  | $ | 1,786.1 |
Trademarks and trade names |  | Indefinite |  | 64.0 |  |  | — |  |  | 64.0 |  |  | 64.0 |  |  | — |  |  | 64.0 |
Total intangible assets |  |  |  | $ | 7,492.7 |  |  | $ | (5,679.4) |  |  | $ | 1,813.3 |  |  | $ | 7,479.3 |  |  | $ | (5,629.2) |  |  | $ | 1,850.1 |
Estimated future amortization for acquired intangible assets | The estimated future amortization of finite-lived intangible assets for the next five years is expected to be as follows:
(In millions) |  | As of March 31, 2023
2023 (remaining nine months) |  | $ | 165.0 |
2024 |  | 195.0 |
2025 |  | 190.0 |
2026 |  | 175.0 |
2027 |  | 170.0 |
2028 |  | 165.0 |
Summary of roll forward of the changes in goodwill | The following table provides a roll forward of the changes in our goodwill balance:
(In millions) |  | As of March 31, 2023
Goodwill, December 31, 2022 |  | $ | 5,749.0 |
Other |  | 2.8 |
Goodwill, March 31, 2023 |  | $ | 5,751.8 |

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