Acquisitions Schedule of separately identifiable assets acquired and liabilities assumed (Tables)

12 Months Ended

Dec. 31, 2019

Business Combinations [Abstract]

Identified assets acquired and liabilities assumed

(In millions)
Cash and cash equivalents	$	107.8
Marketable securities	7.5
In-process research and development intangible assets	700.0
Goodwill	117.5
Deferred tax liability	(81.9		)
Other, net	1.3
Total purchase price	$	852.2