Other Consolidated Financial Statement (Details Textual) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Net gains recognized on the increase in fair value of equity securities	$ (109.3)	$ 426.9	$ 158.1	$ 715.2
Net gains (losses) realized during the period on equity securities	(0.5)	$ (2.7)	0.0	$ (9.3)
Other long-term liabilities	1,198.1		1,198.1		$ 1,320.5
Accrued income taxes	559.7		559.7		$ 664.5
Ionis, Sangamo, Denali and Sage
Net gains recognized on the increase in fair value of equity securities	$ 112.5		$ 198.0