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Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share based compensation expense

Share-Based Compensation Expense

The following table summarizes share-based compensation expense for the periods shown:

	Three Months Ended   March 31,
(In millions)	2019				2018
Cost of sales	$	2.3			$	2.2
Research and development	8.5				8.5
Selling, general and administrative	14.2				13.9
Total share-based compensation expense included in net loss	$	25.0			$	24.6

Restricted Stock Units

Restricted Stock Units

A summary of our RSU and PSU activity for the three months ended March 31, 2019 is as follows:

				Weighted
				Average				Aggregate
				Grant Date				Intrinsic
(In millions, except weighted average grant date fair values)	Shares			Fair Value				Value
Nonvested at December 31, 2018	2.7			$	69.19			$	319.0
Granted	0.6			143.24
Vested	(0.9	)		65.77
Forfeited	(0.1	)		95.68
Nonvested at March 31, 2019	2.3			$	89.57			$	277.4

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- Definition

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
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Tabular disclosure of the changes in outstanding nonvested restricted stock units.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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