Acquisitions and License Agreements (Schedule of Net Sales and Earnings 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]
Net sales	$ 965.1	$ 653.1	$ 2,741.3	$ 1,751.1
Operating income	133.6	(4.4)	356.2	72.4
Ikaria, Inc.
Business Acquisition [Line Items]
Net sales	84.8	0.0	84.8	0.0
Operating income	13.7	0.0	13.7	0.0
Questcor Pharmaceuticals, Inc.
Business Acquisition [Line Items]
Net sales	290.4	0.0	837.7	0.0
Operating income	56.2	0.0	144.7	0.0
Cadence Pharmaceuticals, Inc.
Business Acquisition [Line Items]
Net sales	62.1	53.2	201.6	58.5
Operating income	(28.9)	(57.6)	(70.5)	(66.6)
Total Acquisitions [Member]
Business Acquisition [Line Items]
Net sales	437.3	53.2	1,124.1	58.5
Operating income	$ 41.0	$ (57.6)	$ 87.9	$ (66.6)