Other Consolidated Financial Statement (Details Textual) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Net gains recognized on the increase in fair value of equity securities	$ 76.5	$ 190.9
Net gains (losses) realized during the period on equity securities	1.6	(0.2)
Other long-term liabilities	935.5		$ 944.2
Accrued income taxes	552.5		$ 541.7
Ionis, Sangamo, Denali and Sage
Net gains recognized on the increase in fair value of equity securities	$ 100.0	$ 205.5