Intangible Assets and Goodwill (Tables)

6 Months Ended

Jun. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible assets, net of accumulated amortization, impairment charges and adjustments, are summarized as follows:



		As of June 30, 2014							As of December 31, 2013
(In millions)	Estimated Life	Cost		Accumulated Amortization			Net		Cost		Accumulated Amortization			Net
Out-licensed patents	13-23 years	$	543.3	$	(465.9	)	$	77.4	$	578.0	$	(450.8	)	$	127.2
Developed technology	15-23 years	3,005.3		(2,283.7		)	721.6		3,005.3		(2,165.4		)	839.9
In-process research and development	Indefinite until commercialization	330.9		—			330.9		327.4		—			327.4
Trademarks and tradenames	Indefinite	64.0		—			64.0		64.0		—			64.0
Acquired and in-licensed rights and patents	6-17 years	3,271.5		(216.0		)	3,055.5		3,240.0		(123.8		)	3,116.2
Total intangible assets		$	7,215.0	$	(2,965.6	)	$	4,249.4	$	7,214.7	$	(2,740.0	)	$	4,474.7

Estimated future amortization for acquired intangible assets

Based upon this recent analysis, the estimated future amortization for acquired intangible assets for the balance of 2014 and the next five years is expected to be as follows:



(In millions)	As of June 30, 2014
2014 (remaining six months)	$	217.2
2015	333.4
2016	318.8
2017	322.0
2018	323.1
2019	302.9
Total	$	1,817.4

Summary of roll forward of the changes in goodwill

The following table provides a roll forward of the changes in our goodwill balance:



(In millions)	As of June 30, 2014		As of December 31, 2013
Goodwill, beginning of period	$	1,232.9	$	1,201.3
Increase to goodwill	131.9		35.7
Other	—		(4.1		)
Goodwill, end of period	$	1,364.8	$	1,232.9