Acquisitions and License Agreements (Schedule of Intangible Asset Amortization by Acquiree) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 25, 2016	Mar. 27, 2015	Mar. 25, 2016	Mar. 27, 2015
Business Acquisition [Line Items]
Intangible asset amortization	$ 175.0	$ 122.9	$ 348.4	$ 247.7
Therakos
Business Acquisition [Line Items]
Intangible asset amortization	19.5	0.0	39.0	0.0
Ikaria, Inc.
Business Acquisition [Line Items]
Intangible asset amortization	31.2	0.0	62.3	0.0
Total Acquisitions [Member]
Business Acquisition [Line Items]
Intangible asset amortization	$ 50.7	$ 0.0	$ 101.3	$ 0.0