Acquisitions and License Agreements (Schedule of Intangible Asset Amortization by Acquiree) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 26, 2015	Jun. 27, 2014	Jun. 26, 2015	Jun. 27, 2014
Business Acquisition [Line Items]
Intangible asset amortization	$ 149.6	$ 51.6	$ 398.7	$ 75.9
Ikaria, Inc.
Business Acquisition [Line Items]
Intangible asset amortization	25.9	0.0	25.9	0.0
Questcor Pharmaceuticals, Inc.
Business Acquisition [Line Items]
Intangible asset amortization	75.3	0.0	226.1	0.0
Cadence Pharmaceuticals, Inc.
Business Acquisition [Line Items]
Intangible asset amortization	40.6	40.6	121.9	45.5
Total Acquisitions [Member]
Business Acquisition [Line Items]
Intangible asset amortization	141.8	40.6	373.9	45.5
Cost of Sales | Questcor and Cadence Pharmaceuticals
Business Acquisition [Line Items]
Cost of sales, inventory step-up	$ 4.0	$ 9.5	$ 39.2	$ 10.6