Restructuring and Related Charges (Schedule of Restructuring and Related Charges by Segment) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended	9 Months Ended
	Sep. 29, 2023	Sep. 30, 2022	Sep. 30, 2022	Jun. 16, 2022	Sep. 29, 2023
Restructuring Cost and Reserve
Total Restructuring And Related Expense	$ (0.1)	$ 3.3	$ 2.2	$ 9.6	$ 1.7
Restructuring and Related Cost, Accelerated Depreciation		0.0		0.0	(0.8)
Restructuring charges, net	(0.1)	3.3	2.2	9.6	0.9
Specialty Generics
Restructuring Cost and Reserve
Total Restructuring And Related Expense	0.0	(0.2)	(0.2)	3.5	0.0
Corporate
Restructuring Cost and Reserve
Total Restructuring And Related Expense	$ (0.1)	$ 3.5	$ 2.4	$ 6.1	$ 1.7