Business Combinations (Dyax Pro Forma Information) (Details) - Dyax $ / shares in Units, $ in Millions	12 Months Ended
Dec. 31, 2016 USD ($) $ / shares
Business Acquisition [Line Items]
Revenues	$ 11,402.5
Net income from continuing operations	$ 792.2
Net income from continuing operations per share - basic (in usd per share) \| $ / shares	$ 1.03
Net income from continuing operations per share - diluted (in usd per share) \| $ / shares	$ 1.02
Increase to net income to reflect acquisition related costs	$ 111.1
An adjustment to increase amortization of intangible assets	$ 1.3

An adjustment to net income to reflect the acquisition and integration costs incurred in relation to the acquisition.

No definition available.

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- Definition

A pro forma adjustment to increase (decrease) amortization of an acquired intangible asset resulting from an assumed earlier acquisition date.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Per basic share amount of pro forma income from continuing operations, after tax, as if the business combination had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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- Definition

Per diluted share amount of pro forma income from continuing operations, after tax, as if the business combination had been completed at the beginning of a period.

+ References

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- Definition

Amount after tax of pro forma income from continuing operations as if the business combination had been completed at the beginning of a period.

+ References

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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

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