Fair Value (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Assets
Assets Balance	$ 0.7	$ 0.2
Liabilities
Liabilities Balance	(0.9)	(16.6)
Commodity Futures Contracts [Member]
Assets
Assets Balance	0.4	0.2
Liabilities
Liabilities Balance		(3.5)
Foreign Currency Derivatives [Member]
Assets
Assets Balance	0.3
Liabilities
Liabilities Balance	(0.9)	(13.1)
Level 1 [Member]
Assets
Assets Balance	0	0
Liabilities
Liabilities Balance	0	0
Level 1 [Member] | Commodity Futures Contracts [Member]
Assets
Assets Balance	0	0
Liabilities
Liabilities Balance		0
Level 1 [Member] | Foreign Currency Derivatives [Member]
Assets
Assets Balance	0
Liabilities
Liabilities Balance	0	0
Level 2 [Member]
Assets
Assets Balance	0.7	0.2
Liabilities
Liabilities Balance	(0.9)	(16.6)
Level 2 [Member] | Commodity Futures Contracts [Member]
Assets
Assets Balance	0.4	0.2
Liabilities
Liabilities Balance		(3.5)
Level 2 [Member] | Foreign Currency Derivatives [Member]
Assets
Assets Balance	0.3
Liabilities
Liabilities Balance	(0.9)	(13.1)
Level 3 [Member]
Assets
Assets Balance	0	0
Liabilities
Liabilities Balance	0	0
Level 3 [Member] | Commodity Futures Contracts [Member]
Assets
Assets Balance	0	0
Liabilities
Liabilities Balance		0
Level 3 [Member] | Foreign Currency Derivatives [Member]
Assets
Assets Balance	0
Liabilities
Liabilities Balance	$ 0	$ 0