Derivative Instruments and Hedging Activities Other Derivatives (Details) (Not Designated as Hedging Instrument [Member], USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012	Jun. 25, 2011
Other income (expense), net.
Gain (Loss) on Derivative Instruments:
Amount of Gain (Loss) Recognized in Income on Derivative	$ (5.1)	$ (5.0)	$ 0.8
Equity conversion feature of debt | Interest expense, net
Gain (Loss) on Derivative Instruments:
Amount of Gain (Loss) Recognized in Income on Derivative	(5.6)	(5.6)
Commodity swaps | Cost of goods sold
Gain (Loss) on Derivative Instruments:
Amount of Gain (Loss) Recognized in Income on Derivative	0.5	0.6
Cash settled total return swap | Other income (expense), net.
Gain (Loss) on Derivative Instruments:
Amount of Gain (Loss) Recognized in Income on Derivative			(0.6)
Option contracts | Other income (expense), net.
Gain (Loss) on Derivative Instruments:
Amount of Gain (Loss) Recognized in Income on Derivative			1.5
Foreign currency forwards | Other income (expense), net.
Gain (Loss) on Derivative Instruments:
Amount of Gain (Loss) Recognized in Income on Derivative			$ (0.1)