Acquisitions (Tables)

12 Months Ended

Dec. 31, 2012

Business Combinations [Abstract]

Summary of purchase price

(In millions)
Cash portion of consideration	$	75.0
Fair value of pre-existing equity ownership	10.2
Contingent consideration	122.2
Total purchase price	$	207.4

Purchase price allocation for the acquisition

(In millions)
In-process research and development	$	219.2
Goodwill	48.2
Deferred tax assets	17.8
Deferred tax liability	(77.9		)
Other, net	0.1
Total purchase price	$	207.4