Other Expense, Net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014
Other Expense, Net Disclosure
Interest Income	$ 7.2	$ 10.5	$ 21.9	$ 38.4
Interest Expense	(100.6)	(116.8)	(311.9)	(363.7)
Other Items, Net	(1.4)	5.2	(2.3)	11.5
Other Expense, Net	$ (94.8)	$ (101.1)	(292.3)	(313.8)
Losses on Extinguishment of Debt			6.0
Gain on Sale of Investments				$ 9.0
Costs associated with entering into interest rate swap arrangements			$ 7.5