Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2011

Stock-Based Compensation [Abstract]

Schedule Of Stock-Based Compensation Expenses Included In Consolidated Statement Of Income


		Year Ended December 31,
		2011				2010				2009
Cost of goods sold		$	8,433			$	10,180			$	10,859
Research and development expenses			73,490				84,048				82,893
Selling, general and administrative expenses			110,455				105,813				92,006

Stock-based compensation expense included in total costs and expenses			192,378				200,041				185,758
Income tax effect			(47,325	)			(52,331	)			(46,486	)

Stock-based compensation expense, net of tax		$	145,053			$	147,710			$	139,272

Schedule Of Assumptions To Calculate The Estimated Fair Value Of The Awards


		Year Ended December 31,
		2011				2010				2009
Expected volatility:
Stock options			29	%			31	%			35	%
ESPP			30	%			35	%			37	%
Expected term in years:
Stock options			5.6				5.4				5.3
ESPP			1.4				1.3				1.3
Risk-free interest rate:
Stock options			2.2	%			2.3	%			2.1	%
ESPP			0.8	%			0.4	%			0.7	%
Expected dividend yield			0	%			0	%			0	%