Restructuring and Related Charges (Schedule of Restructuring and Related Charges by Segment) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 25, 2016	Mar. 27, 2015	Mar. 25, 2016	Mar. 27, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges, net	$ 10.4	$ 3.6	$ 16.8	$ 10.9
Less: accelerated depreciation	(1.7)	(0.1)	(1.8)	(0.2)
Restructuring charges, net	8.7	3.5	15.0	10.7
Specialty Brands
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges, net	8.0	0.9	9.6	15.1
Specialty Generics
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges, net	0.6	2.7	1.7	2.7
Nuclear Imaging
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges, net	0.3	0.0	2.5	(7.3)
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges, net	$ 1.5	$ 0.0	$ 3.0	$ 0.4