Consolidated Statements Of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Oct. 01, 2010	Sep. 30, 2011	Oct. 01, 2010
Revenue
Products		$ 369.3		$ 1,049.7
Services		60.5		182.1
Total revenue		429.8		1,231.8
Cost of Revenue
Products		175.6		476.9
Services		38.5		121.1
Total cost of revenue		214.1		598.0
Gross Profit		215.7		633.8
Gross profit as a percentage of revenue		50.20%		51.50%
Gross profit as a percentage of revenue - products		52.50%		54.60%
Gross profit as a percentage of revenue - services		36.40%		33.50%
Operating Expenses
Research and development		76.3		216.8
Sales and marketing		43.6		132.5
General and administrative		24.0		73.7
Intangible asset amortization		6.1		20.9
Restructuring and other charges	19.5		20.5	9.5
Goodwill and IPR&D impairment
Total operating expenses		150.0		453.4
Operating (Loss) Earnings		65.7		180.4
Operating (loss) earnings as a percentage of revenue		15.30%		14.60%
Other Income
Interest income, net		2.3		9.2
Other (expense) income, net		4.9		9.7
Total other income		7.2		18.9
(Loss) Earnings Before Income Tax		72.9		199.3
Income tax (expense) benefit		(16.1)		(32.8)
Net (Loss) Earnings		56.8		166.5
Weighted Average Shares Outstanding
Basic		376.3		382.1
Diluted		379.8		386.7
Net (Loss) Earnings Per Share
Basic		$ 0.15		$ 0.44
Diluted		$ 0.15		$ 0.43
Cash Dividends Per Share		$ 0.02		$ 0.06
Restated [Member]
Revenue
Products	272.7		804.6
Services	57.1		164.3
Total revenue	329.8		968.9
Cost of Revenue
Products	158.7		483.5
Services	34.8		111.6
Total cost of revenue	193.5		595.1
Gross Profit	136.3		373.8
Gross profit as a percentage of revenue	41.30%		38.60%
Gross profit as a percentage of revenue - products	41.80%		39.90%
Gross profit as a percentage of revenue - services	39.10%		32.10%
Operating Expenses
Research and development	80.8		244.6
Sales and marketing	41.4		126.9
General and administrative	18.6		63.3
Intangible asset amortization	5.0		15.3
Restructuring and other charges	19.5		20.5
Goodwill and IPR&D impairment	102.7		102.7
Total operating expenses	268.0		573.3
Operating (Loss) Earnings	(131.7)		(199.5)
Operating (loss) earnings as a percentage of revenue	(39.90%)		(20.60%)
Other Income
Interest income, net	3.0		9.4
Other (expense) income, net	(0.9)		(2.6)
Total other income	2.1		6.8
(Loss) Earnings Before Income Tax	(129.6)		(192.7)
Income tax (expense) benefit	(0.5)		9.2
Net (Loss) Earnings	$ (130.1)		$ (183.5)
Weighted Average Shares Outstanding
Basic	365.2		364.3
Diluted	365.2		364.3
Net (Loss) Earnings Per Share
Basic	$ (0.36)		$ (0.50)
Diluted	$ (0.36)		$ (0.50)
Cash Dividends Per Share	$ 0.02		$ 0.06