Restructuring, Business Transformation and Other Cost Saving Initiatives - Narrative (Details) $ in Millions		3 Months Ended
	Sep. 26, 2023 USD ($)	Mar. 31, 2024 USD ($) Employee	Jul. 31, 2023 USD ($)
Minimum
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining			$ 260.0
Maximum
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining			$ 280.0
2023 Cost Saving Initiatives
Restructuring Cost and Reserve [Line Items]
Expected operating expense reduction	$ 1,000.0
Expected number of positions eliminated | Employee		1,000
Severance Costs		$ 9.3
2023 Cost Saving Initiatives | Restructuring charges
Restructuring Cost and Reserve [Line Items]
Severance Costs		9.3
Reata Integration
Restructuring Cost and Reserve [Line Items]
Severance Costs		2.2
Reata Integration | Minimum
Restructuring Cost and Reserve [Line Items]
Expected cost		35.0
Reata Integration | Maximum
Restructuring Cost and Reserve [Line Items]
Expected cost		40.0
Reata Integration | Restructuring charges
Restructuring Cost and Reserve [Line Items]
Severance Costs		$ 2.2