Collaborative and Other Relationships - Summary of Activity Related to Sage Therapeutics (Details) - Sage Therapeutics - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Research and development
Collaborative arrangements and non-collaborative arrangement transactions
Expense incurred by the collaboration	$ 173.3	$ 167.7	$ 0.0
Expense reflected within statements of income	86.7	83.8	0.0
Selling, general and administrative
Collaborative arrangements and non-collaborative arrangement transactions
Expense incurred by the collaboration	109.9	36.4	0.0
Expense reflected within statements of income	$ 55.0	$ 18.2	$ 0.0