Financial Instruments (Notional Amounts And Fair Values Of Derivatives Designated As Cash Flow Hedges And Derivatives Not Designated As Cash Flow Hedges) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
Cash Flow Hedging [Member]
Derivatives, Fair Value [Line Items]
Fair Value of asset for derivatives designated as cash flow hedges	$ 0.6	[1]	$ 4.2	[1]
Fair Value of liability for derivatives designated as cash flow hedges	1.9	[2]	15.7	[2]
Fair Value of assets for derivatives not designated as cash flow hedges	6.5	[1]	6.5	[1]
Fair Value of liability for derivatives not designated as cash flow hedges	8.2	[2]	20.5	[2]
Interest Rate Swaps [Member] | Cash Flow Hedging [Member]
Derivatives, Fair Value [Line Items]
Notional Amount of derivatives designated as cash flow hedges	15.3		32.1
Fair Value of asset for derivatives designated as cash flow hedges	0	[1]	0	[1]
Fair Value of liability for derivatives designated as cash flow hedges	0.2	[2]	0.6	[2]
Commodity Futures [Member]
Derivatives, Fair Value [Line Items]
Notional amount of derivatives not designated as cash flow hedges	206.0		133.0
Fair Value of assets for derivatives not designated as cash flow hedges	3.3	[1]	2.4	[1]
Fair Value of liability for derivatives not designated as cash flow hedges	4.9	[2]	12.6	[2]
Commodity Futures [Member] | Cash Flow Hedging [Member]
Derivatives, Fair Value [Line Items]
Notional Amount of derivatives designated as cash flow hedges	22.8		216.1
Fair Value of asset for derivatives designated as cash flow hedges	0.2	[1]	3.8	[1]
Fair Value of liability for derivatives designated as cash flow hedges	1.1	[2]	14.0	[2]
Foreign Currency Exchanges [Member]
Derivatives, Fair Value [Line Items]
Notional amount of derivatives not designated as cash flow hedges	253.7		321.7
Fair Value of assets for derivatives not designated as cash flow hedges	3.2	[1]	4.1	[1]
Fair Value of liability for derivatives not designated as cash flow hedges	3.3	[2]	7.9	[2]
Foreign Currency Exchanges [Member] | Cash Flow Hedging [Member]
Derivatives, Fair Value [Line Items]
Notional Amount of derivatives designated as cash flow hedges	60.7		55.4
Fair Value of asset for derivatives designated as cash flow hedges	0.4	[1]	0.4	[1]
Fair Value of liability for derivatives designated as cash flow hedges	$ 0.6	[2]	$ 1.1	[2]

[1] Balance recorded in “Prepaid expenses and other” and “Other non-current assets”

[2] Balance recorded in “Accrued liabilities” and “Other liabilities”