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Intangible Assets and Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible assets | Intangible assets, net of accumulated amortization, impairment charges and adjustments are summarized as follows:
|  |  | As of December 31, 2022 |  | As of December 31, 2021
(In millions) | Estimated Life |  | Cost |  | Accumulated Amortization |  | Net |  | Cost |  | Accumulated Amortization |  | Net
Completed technology | 4-28 years |  | $ | 7,415.3 |  |  | $ | (5,629.2) |  |  | $ | 1,786.1 |  |  | $ | 7,413.1 |  |  | $ | (5,388.5) |  |  | $ | 2,024.6 |
In-process research and development | Indefinite until commercialization |  | — |  |  | — |  |  | — |  |  | 132.7 |  |  | — |  |  | 132.7 |
Trademarks and trade names | Indefinite |  | 64.0 |  |  | — |  |  | 64.0 |  |  | 64.0 |  |  | — |  |  | 64.0 |
Total intangible assets |  |  | $ | 7,479.3 |  |  | $ | (5,629.2) |  |  | $ | 1,850.1 |  |  | $ | 7,609.8 |  |  | $ | (5,388.5) |  |  | $ | 2,221.3 |
Estimated future amortization of 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 December 31, 2022
2023 |  | $ | 215.0 |
2024 |  | 195.0 |
2025 |  | 190.0 |
2026 |  | 175.0 |
2027 |  | 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:
|  | As of December 31,
(In millions) |  | 2022 |  | 2021
Goodwill, beginning of year |  | $ | 5,761.1 |  |  | $ | 5,762.1 |
Other |  | (12.1) |  |  | (1.0) |
Goodwill, end of year |  | $ | 5,749.0 |  |  | $ | 5,761.1 |

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