Derivatives and Fair Value Measurements (Details 2) - USD ($)		Jun. 30, 2016	Dec. 31, 2015
Derivative [Line Items]
Derivative Assets (Liabilities), at Fair Value, Net		$ 0
Net amounts presented in the condensed consolidated balance sheet [Member]
Derivative [Line Items]
Derivative liabilities, current	[1]		$ 231,700,000
Derivative liabilities, noncurrent	[1]		92,700,000
Net amounts presented in the condensed consolidated balance sheet [Member] | Commodity swap contracts [Member]
Derivative [Line Items]
Derivative liabilities, current	[1]		86,100,000
Derivative liabilities, noncurrent	[1]		37,600,000
Net amounts presented in the condensed consolidated balance sheet [Member] | Foreign currency forward contract [Member]
Derivative [Line Items]
Derivative liabilities, current	[1]		145,600,000
Derivative liabilities, noncurrent	[1]		55,100,000
Fair Value, Measurements, Recurring [Member] | Commodity swap contracts [Member]
Derivative [Line Items]
Derivative Assets (Liabilities), at Fair Value, Net			(123,700,000)
Fair Value, Measurements, Recurring [Member] | Foreign currency forward contract [Member]
Derivative [Line Items]
Derivative Assets (Liabilities), at Fair Value, Net			$ (200,700,000)

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