Acquisitions and License Agreements (Schedule of Net Sales and Earnings by Acquiree) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 25, 2015	Dec. 26, 2014
Business Acquisition [Line Items]
Net sales	$ 914.8	$ 768.2
Operating income	179.4	121.6
Ikaria, Inc.
Business Acquisition [Line Items]
Net sales	114.6	0.0
Operating income	42.2	0.0
Total Acquisitions [Member]
Business Acquisition [Line Items]
Net sales	165.0	0.0
Operating income	31.1	0.0
Therakos
Business Acquisition [Line Items]
Net sales	50.4	0.0
Operating income	$ (11.1)	$ 0.0