Acquisitions and Divestitures - Schedule of Acquisition Costs (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Jun. 27, 2015	Dec. 27, 2014	Jun. 27, 2015	Jun. 28, 2014
schedule of acquisition expenses [Line Items]
Acquisition related costs	$ 18.5	$ 17.8
Omega
schedule of acquisition expenses [Line Items]
Acquisition related costs			$ 387.0
Omega | Administration
schedule of acquisition expenses [Line Items]
Acquisition related costs			29.7
Omega | Interest expense, net
schedule of acquisition expenses [Line Items]
Acquisition related costs			23.7
Omega | Other expense, net
schedule of acquisition expenses [Line Items]
Acquisition related costs			324.0
Omega | Loss on extinguishment of debt
schedule of acquisition expenses [Line Items]
Acquisition related costs			$ 9.6
Elan
schedule of acquisition expenses [Line Items]
Acquisition related costs				$ 284.9
Elan | Administration
schedule of acquisition expenses [Line Items]
Acquisition related costs				108.9
Elan | Interest expense, net
schedule of acquisition expenses [Line Items]
Acquisition related costs				10.0
Elan | Other expense, net
schedule of acquisition expenses [Line Items]
Acquisition related costs				0.2
Elan | Loss on extinguishment of debt
schedule of acquisition expenses [Line Items]
Acquisition related costs				$ 165.8