Inventory - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Sep. 26, 2023
Inventory [Line Items]
Net income	$ 388.5	$ (68.3)	$ 1,365.5	$ 912.6
Cost of sales, excluding amortization and impairment of acquired intangible assets	638.7	$ 659.6	1,726.9	$ 1,915.1
Reata Pharmaceuticals, Inc
Inventory [Line Items]
Inventory	1,259.0		1,259.0		$ 1,300.0
Inventory amortization period					4 years
Reata Pharmaceuticals, Inc | Fair Value Adjustment to Inventory
Inventory [Line Items]
Net income	50.9		185.1
Reata Pharmaceuticals, Inc | Fair Value Adjustment to Inventory | Clinical Inventory
Inventory [Line Items]
Cost of sales, excluding amortization and impairment of acquired intangible assets	$ 2.5		$ 48.5