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Intangible Assets and Goodwill (Tables)

12 Months Ended

Dec. 31, 2020

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, 2020																		As of December 31, 2019
(In millions)			Estimated Life						Cost						Accumulated Amortization						Net						Cost						Accumulated Amortization						Net
Completed technology			4-28 years						$	7,394.3					$	(5,136.5)					$	2,257.8					$	7,379.3					$	(4,881.4)					$	2,497.9
In-process research and development			Indefinite until commercialization						762.5						—						762.5						965.5						—						965.5
Trademarks and trade names			Indefinite						64.0						—						64.0						64.0						—						64.0
Total intangible assets									$	8,220.8					$	(5,136.5)					$	3,084.3					$	8,408.8					$	(4,881.4)					$	3,527.4

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, 2020
2021						$	205.0
2022						215.0
2023						215.0
2024						225.0
2025						220.0

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)						2020						2019
Goodwill, beginning of year						$	5,757.8					$	5,706.4
Increase to goodwill						—						117.5
Elimination of goodwill allocated to Hillerød, Denmark manufacturing operations						—						(69.5)
Other						4.3						3.4
Goodwill, end of year						$	5,762.1					$	5,757.8

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Intangible assets excluding goodwill.

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Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
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Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.

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-Name Accounting Standards Codification
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