Financial Instruments (Gain and Loss on the Derivative Representing Either Hedge Ineffectiveness or Hedge Components Excluded From the Assessment of Effectiveness) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 28, 2013		Jun. 29, 2012		Jun. 28, 2013		Jun. 29, 2012
Derivatives, Fair Value [Line Items]
Amount of Comprehensive Income (Loss) Recognized in Accumulated OCI on Derivatives (Effective Portion)	$ 0		$ (8.4)		$ (1.2)		$ 0.1
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income	(1.7)		(0.9)		(2.0)		(0.8)
Amount of Gain (Loss) Recognized in Income on the Ineffective Portion	0		(0.2)		0		(0.4)	[1]
Interest Expense [Member] | Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Amount of Comprehensive Income (Loss) Recognized in Accumulated OCI on Derivatives (Effective Portion)	0		0.1		0.1		0.3
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income	(0.1)		0		(0.1)		0
Amount of Gain (Loss) Recognized in Income on the Ineffective Portion	0	[1]	0	[1]	0	[1]	0	[1]
Cost of Sales [Member] | Commodity Futures [Member]
Derivatives, Fair Value [Line Items]
Amount of Comprehensive Income (Loss) Recognized in Accumulated OCI on Derivatives (Effective Portion)	0		(8.5)		(1.3)		(0.1)
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income	(1.6)		(0.6)		(1.9)		0.1
Amount of Gain (Loss) Recognized in Income on the Ineffective Portion	0	[1]	(0.2)	[1]	0	[1]	(0.4)	[1]
Other Income /(Expense) [Member] | Foreign Currency Exchanges [Member]
Derivatives, Fair Value [Line Items]
Amount of Comprehensive Income (Loss) Recognized in Accumulated OCI on Derivatives (Effective Portion)	0		0		0		(0.1)
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income	0		(0.3)		0		(0.9)
Amount of Gain (Loss) Recognized in Income on the Ineffective Portion	$ 0	[1]	$ 0	[1]	$ 0	[1]	$ 0	[1]

[1] The ineffective portion and the amount excluded from effectiveness testing for all derivatives designated as cash flow hedges is recognized in other income and expense.