Goodwill and Purchased Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2011

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill by segment [Text Block]

The following table summarizes the Company's goodwill activities by segment (in millions):

	Infrastructure		SLT			Total
December 31, 2009	$	1,500.5	$	2,158.1		$	3,658.6
Adjustment to goodwill	—		0.2			0.2
Additions due to business combinations	142.9		126.1			269.0
December 31, 2010	1,643.4		2,284.4			3,927.8
Adjustments to goodwill	1.7		(1.8		)	(0.1		)
Additions due to business combinations	0.4		—			0.4
December 31, 2011	$	1,645.5	$	2,282.6		$	3,928.1

Schedule of finite-lived and indefinite-lived intangible assets by major class [Text Block]

Changes to the Company’s purchased intangible assets were as follows (in millions):

	Gross		Accumulated Amortization			Net
As of December 31, 2011:
Intangible assets with finite lives:
Technologies and patents	$	499.5	$	(404.2	)	$	95.3
Other	91.5		(66.5		)	25.0
Total intangible assets with finite lives	591.0		(470.7		)	120.3
IPR&D with indefinite lives	2.8		—			2.8
Total purchased intangible assets	$	593.8	$	(470.7	)	$	123.1
As of December 31, 2010:
Intangible assets with finite lives:
Technologies and patents	$	471.1	$	(381.4	)	$	89.7
Other	86.4		(62.2		)	24.2
Total intangible assets with finite lives	557.5		(443.6		)	113.9
IPR&D with indefinite lives	7.9		—			7.9
Total purchased intangible assets	$	565.4	$	(443.6	)	$	121.8

Estimated future amortization expense of purchased intangible assets with definite lives [Text Block]

The estimated future amortization expense of purchased intangible assets with finite lives is as follows (in millions):

Years Ending December 31,	Amount
2012	$	27.4
2013	27.2
2014	25.3
2015	20.4
2016	7.7
Thereafter	12.3
Total	$	120.3