Property, Plant and Equipment (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 25, 2015	Sep. 26, 2014	Sep. 27, 2013
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,870.6	$ 1,669.0
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	879.3	782.2
Depreciation	103.9	$ 94.7	$ 88.1
Weighted Average Cost of Capital, Rate		8.00%
Property Under Capital Lease
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	14.8	$ 16.9
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 14.6	15.8
Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Impairment of long-lived assets		65.9
Finite-lived intangible ssets
Property, Plant and Equipment [Line Items]
Impairment of long-lived assets		52.4
Contrast Media and Delivery Systems | Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Impairment of Long-Lived Assets to be Disposed of		51.4
Contrast Media and Delivery Systems | Finite-lived intangible ssets
Property, Plant and Equipment [Line Items]
Impairment of Long-Lived Assets to be Disposed of		$ 52.4