Restructuring and Related Charges (Schedule of Restructuring and Related Charges by Segment) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2019	Sep. 28, 2018	Sep. 27, 2019	Sep. 28, 2018
Restructuring Cost and Reserve
Restructuring and related charges, net	$ 7.2	$ 19.6	$ 11.2	$ 106.6
Less: accelerated depreciation	0.0	(4.8)	0.0	(4.8)
Restructuring charges, net	7.2	14.8	11.2	101.8
Specialty Brands
Restructuring Cost and Reserve
Restructuring and related charges, net	0.0	4.9	0.4	52.4
Specialty Generics
Restructuring Cost and Reserve
Restructuring and related charges, net	6.7	0.1	9.3	5.3
Corporate
Restructuring Cost and Reserve
Restructuring and related charges, net	$ 0.5	$ 14.6	$ 1.5	$ 48.9