Share-Based Payments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Share-based Compensation Expense included in consolidated statements of income
Share-based compensation expense	$ (74.1)	$ (58.0)	$ (153.0)	$ (128.4)
Subtotal	76.3	59.1	157.7	130.9
Capitalized share-based compensation costs	(2.6)	(2.3)	(5.9)	(5.1)
Share-based compensation expense included in total costs and expenses	73.7	56.8	151.8	125.8
Income tax effect	(13.3)	(10.2)	(28.0)	(23.0)
Research and development
Share-based Compensation Expense included in consolidated statements of income
Share-based compensation expense	27.9	22.4	59.2	48.1
Selling, general and administrative
Share-based Compensation Expense included in consolidated statements of income
Share-based compensation expense	48.4	36.7	98.5	82.8
Total share-based compensation expense, net of tax
Share-based Compensation Expense included in consolidated statements of income
Share-based compensation expense	$ 60.4	$ 46.6	$ 123.8	$ 102.8