Restructuring (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended	0 Months Ended	3 Months Ended		12 Months Ended	3 Months Ended			0 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 28, 2013	Dec. 29, 2012	Jun. 29, 2013	Dec. 28, 2013 Elan Corporation [Member]	Dec. 28, 2013 Elan Corporation [Member] employees	Sep. 28, 2013 Velcera, Inc. [Domain]	Jun. 29, 2013 Velcera, Inc. [Domain] employees	Dec. 28, 2013 GEORGIA employees	Dec. 28, 2013 MINNESOTA	Sep. 28, 2013 MINNESOTA employees	Dec. 28, 2013 Minimum [Member] Elan Corporation [Member]	Dec. 28, 2013 Maximum [Member] Elan Corporation [Member]
Restructuring [Line Items]
Restructuring	$ 14.9	$ 0	$ 17.0	$ 0	$ 2.9	$ 14.3				$ 0.5	$ 0.2	$ 1.4
Payments for Restructuring						1.1
Restructuring and Related Cost, Expected Cost													8.0	10.0
Restructuring and Related Cost, Expected Number of Positions Eliminated							25
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning of period								2.9
Restructuring Reserve, Period Increase (Decrease)								0.7
Restructuring Reserve, end of period									$ 2.9
Restructuring and Related Cost, Number of Positions Eliminated							8		22	30		40