Amortization of intangible assets, excluding impairment

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- Definition

Indefinite lived intangible assets useful life.

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.

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- Definition

Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

No definition available.

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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- Definition

Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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- Definition

Amount before accumulated amortization of intangible assets, excluding goodwill.

+ References

No definition available.

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- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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Intangible Assets and Goodwill (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Jun. 07, 2019	Dec. 31, 2018
Intangible assets
Contingent consideration impairment	$ 57.8	$ 87.9	$ 66.3	$ 91.6
Total intangible assets, gross	8,206.1		8,206.1			$ 7,727.3
Accumulated Amortization	(4,813.7)		(4,813.7)			(4,607.3)
Intangible assets, net	3,392.4		3,392.4			3,120.0
Amortization and impairment of acquired intangible assets	283.9	281.9	422.2	493.2
Amortization of intangible assets, excluding impairment	68.0	92.6	206.3	303.9
Intangible Assets and Goodwill (Textual) [Abstract]
Expected future amortization expense, 2019 (remaining three months)	65.0		65.0
Expected future amortization expense, 2020	255.0		255.0
Expected future amortization expense, 2021	215.0		215.0
Expected future amortization expense, 2022	215.0		215.0
Expected future amortization expense, 2023	220.0		220.0
Expected future amortization expense, 2024	210.0		210.0
Out-licensed patents
Intangible assets
Cost	543.3		543.3			543.3
Net	0.8		0.8			1.0
Accumulated Amortization	(542.5)		$ (542.5)			(542.3)
Out-licensed patents \| Minimum
Intangible assets
Estimated life, (in years)			13 years
Out-licensed patents \| Maximum
Intangible assets
Estimated life, (in years)			23 years
Developed technology
Intangible assets
Cost	3,005.3		$ 3,005.3			3,005.3
Net	240.7		240.7			270.5
Accumulated Amortization	(2,764.6)		$ (2,764.6)			(2,734.8)
Developed technology \| Minimum
Intangible assets
Estimated life, (in years)			15 years
Developed technology \| Maximum
Intangible assets
Estimated life, (in years)			28 years
Developed technology \| AVONEX
Intangible assets
Net	236.6		$ 236.6
Acquired and in-licensed rights and patents
Intangible assets
Cost	3,638.7		3,638.7			3,638.7
Net	2,132.1		2,132.1			2,308.5
Accumulated Amortization	(1,506.6)		$ (1,506.6)			(1,330.2)
Acquired and in-licensed rights and patents \| Minimum
Intangible assets
Estimated life, (in years)			4 years
Acquired and in-licensed rights and patents \| Maximum
Intangible assets
Estimated life, (in years)			18 years
Acquired and in-licensed rights and patents \| TYSABRI
Intangible assets
Net	1,889.6		$ 1,889.6
Acquired and in-licensed rights and patents \| TECFIDERA
Intangible assets
Net	45.6		$ 45.6
In Process Research and Development
Intangible assets
Indefinite lived intangible assets useful life			Indefinite until commercialization
Cost and Net	954.8		$ 954.8			476.0
Accumulated Amortization	0.0		$ 0.0			0.0
Amortization and impairment of acquired intangible assets	215.9	189.3
Trademarks and Trade Names
Intangible assets
Indefinite lived intangible assets useful life			Indefinite
Cost and Net	64.0		$ 64.0			64.0
Accumulated Amortization	0.0		$ 0.0			$ 0.0
Nightstar
Intangible assets
In-process research and development					$ 700.0
BG00011
Intangible assets
Contingent consideration impairment	61.2
BG00011 \| In Process Research and Development
Intangible assets
Amortization and impairment of acquired intangible assets	$ 215.9
PLSR [Member] \| In Process Research and Development
Intangible assets
Amortization and impairment of acquired intangible assets		60.0
TGN [Member]
Intangible assets
Contingent consideration impairment		89.6
TGN [Member] \| In Process Research and Development
Intangible assets
Cost and Net		41.8		$ 41.8
Amortization and impairment of acquired intangible assets		$ 129.3