Share-Based Payments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Share-based Compensation Expense included in consolidated statements of income
Share-based compensation expense	$ (65.7)	$ (57.6)	$ (194.1)	$ (186.1)
Subtotal	71.0	62.1	201.9	200.0
Capitalized share-based compensation costs	(2.0)	(1.9)	(7.1)	(6.3)
Share-based compensation expense included in total costs and expenses	69.0	60.2	194.8	193.7
Income tax effect	(13.0)	(10.9)	(36.0)	(35.8)
Research and development
Share-based Compensation Expense included in consolidated statements of income
Share-based compensation expense	24.5	19.5	72.6	72.2
Selling, general and administrative
Share-based Compensation Expense included in consolidated statements of income
Share-based compensation expense	46.5	42.6	129.3	127.8
Total share-based compensation expense, net of tax
Share-based Compensation Expense included in consolidated statements of income
Share-based compensation expense	$ 56.0	$ 49.3	$ 158.8	$ 157.9