Acquisitions and License Agreements (Schedule of Net Sales and Earnings 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]
Net sales	$ 918.0	$ 819.0	$ 1,832.8	$ 1,587.2
Operating income	164.4	93.9	343.8	215.5
Therakos
Business Acquisition [Line Items]
Net sales	50.2	0.0	100.6	0.0
Operating income	4.2	0.0	(6.9)	0.0
Ikaria, Inc.
Business Acquisition [Line Items]
Net sales	119.7	0.0	234.3	0.0
Operating income	49.2	0.0	91.4	0.0
Total Acquisitions [Member]
Business Acquisition [Line Items]
Net sales	169.9	0.0	334.9	0.0
Operating income	$ 53.4	$ 0.0	$ 84.5	$ 0.0