Derivatives and Fair Value Measurements (Details 2) - Net amounts presented in the consolidated balance sheet $ in Millions	Dec. 31, 2015 USD ($)	[1]
Derivative [Line Items]
Derivative Liability, Current	$ 231.7
Derivative Liability, Noncurrent	92.7
Commodity swap contracts [Member]
Derivative [Line Items]
Derivative Liability, Current	86.1
Derivative Liability, Noncurrent	37.6
Foreign currency forward contracts [Member]
Derivative [Line Items]
Derivative Liability, Current	145.6
Derivative Liability, Noncurrent	$ 55.1

[1] All commodity swap contracts and foreign currency forward contracts were in a liability position as of December 31, 2015.