Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2015

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

Components of share-based compensation expense

The following table summarizes the components of share-based compensation expense in the Consolidated Statements of Operations for the three- and nine-month periods ended September 30, 2015 and 2014:

	Three-Month Periods Ended September 30,				Nine-Month Periods Ended September 30,
	2015		2014		2015		2014
Cost of goods sold (excluding amortization of acquired intangible assets)	$	8.5	$	6.8	$	23.3	$	18.8
Research and development	65.2		48.4		185.0		141.2
Selling, general and administrative	76.2		56.2		218.1		159.2
Total share-based compensation expense	149.9		111.4		426.4		319.2
Tax benefit related to share-based compensation expense	42.8		31.4		124.0		92.4
Reduction in income	$	107.1	$	80.0	$	302.4	$	226.8

Summary of activity for stock options, RSUs and PSUs

The following table summarizes the activity for stock options, RSUs and PSUs for the nine-month period ended September 30, 2015 (in millions unless otherwise noted):

	Stock Options		Restricted Stock Units		Performance- Based Restricted Stock Units (in thousands)
Outstanding at December 31, 2014	77.2		9.4		133
Changes during the Year:
Granted	8.7		1.8		211
Exercised / Released	(9.0	)	(3.0	)	—
Forfeited	(1.3	)	(0.3	)	(7	)
Outstanding at September 30, 2015	75.6		7.9		337

Schedule of unvested awards compensation cost not yet recognized and weighted-average periods for recognition

Total compensation cost related to unvested awards not yet recognized and the weighted-average periods over which the awards are expected to be recognized at September 30, 2015 were as follows (dollars in millions):

	Stock Options		Restricted Stock Units		Performance- Based Restricted Stock Units
Unrecognized compensation cost	$	613.4	$	304.3	$	20.4
Expected weighted-average period in years of compensation cost to be recognized	2.0		1.3		1.7