Share-Based Payments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Share-based Compensation Expense included in consolidated statements of income
Subtotal	$ 45.7	$ 36.6	$ 137.3	$ 111.0
Capitalized share-based compensation costs	(1.5)	(1.3)	(4.0)	(3.3)
Share-based compensation expense included in total costs and expenses	44.2	35.3	133.3	107.7
Income tax effect	(13.0)	(10.0)	(40.1)	(33.0)
Research and development [Member]
Share-based Compensation Expense included in consolidated statements of income
Share-based compensation expense	18.0	14.2	55.8	46.4
Selling, general and administrative [Member]
Share-based Compensation Expense included in consolidated statements of income
Share-based compensation expense	27.7	22.4	81.5	65.2
Restructuring Charges [Member]
Share-based Compensation Expense included in consolidated statements of income
Share-based compensation expense	0	0	0	(0.6)
Total share-based compensation expense, net of tax [Member]
Share-based Compensation Expense included in consolidated statements of income
Share-based compensation expense	$ 31.2	$ 25.3	$ 93.2	$ 74.7