Share-Based Payments (Details) (USD $)	12 Months Ended												3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2011 Total share-based compensation expense, net of tax [Member]	Dec. 31, 2010 Total share-based compensation expense, net of tax [Member]	Dec. 31, 2009 Total share-based compensation expense, net of tax [Member]	Dec. 31, 2011 Research and development [Member]	Dec. 31, 2010 Research and development [Member]	Dec. 31, 2009 Research and development [Member]	Dec. 31, 2011 Selling, general and administrative [Member]	Dec. 31, 2010 Selling, general and administrative [Member]	Dec. 31, 2009 Selling, general and administrative [Member]	Dec. 31, 2010 Restructuring Charges [Member]	Dec. 31, 2011 Restructuring Charges [Member]	Dec. 31, 2010 Restructuring Charges [Member]
Share-based Compensation Expense included in consolidated statements of income
Share-based compensation expense	$ 117,347,000	$ 171,435,000	$ 167,207,000	$ 101,000,000	$ 129,300,000	$ 111,500,000	$ 62,000,000	$ 62,700,000	$ 60,800,000	$ 88,700,000	$ 123,600,000	$ 106,400,000	$ 6,800,000	$ (600,000)	$ 6,800,000
Subtotal	150,100,000	193,100,000	167,200,000
Capitalized share-based payment costs	(4,500,000)	(3,500,000)	(6,300,000)
Share-based compensation expense included in total costs and expenses	145,600,000	189,600,000	160,900,000
Income tax effect	$ (44,600,000)	$ (60,300,000)	$ (49,400,000)