Derivatives and Fair Value Measurements (Details 1) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015		Sep. 30, 2016		Sep. 30, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net		$ 0.1				$ 14.9
Operating costs and expenses [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss recognized in income on non-designated derivatives	$ (47.4)			$ (273.0)
Operating costs and expenses [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
(Loss) reclassified from other comprehensive income into income (ineffective portion)		(0.5)				1.3
Derivative Instruments, (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		(181.3)				(164.5)
Derivative Instruments, (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		(116.4)	[1]			(327.9)	[2]
Operating costs and expenses [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss reclassified from Accumulated OCI into income	(47.4)			(188.5)	[3]
(Loss) gain recognized in income on derivatives	0.0			(84.4)
Unrealized gain (loss) on derivatives and commodity contracts	0.0			0.0
Commodity swap contracts [Member] | Operating costs and expenses [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss recognized in income on non-designated derivatives	(19.4)			(78.4)
Commodity swap contracts [Member] | Operating costs and expenses [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
(Loss) reclassified from other comprehensive income into income (ineffective portion)		(0.5)				1.3
Derivative Instruments, (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		(63.1)				(27.3)
Derivative Instruments, (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		(31.9)	[1]			(89.0)	[2]
Commodity swap contracts [Member] | Operating costs and expenses [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
(Losses) reclassified into earnings, net				9.0
Loss reclassified from Accumulated OCI into income	(19.4)			(66.4)	[3]
(Loss) gain recognized in income on derivatives	0.0			(11.9)
Unrealized gain (loss) on derivatives and commodity contracts	0.0			0.0
Commodity swap contracts [Member] | Reorganization items [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss recognized in income on non-designated derivatives				(38.8)
Commodity swap contracts [Member] | Reorganization items [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss reclassified from Accumulated OCI into income				0.0
(Loss) gain recognized in income on derivatives				(38.8)
Unrealized gain (loss) on derivatives and commodity contracts				0.0
Foreign currency forward contract [Member] | Operating costs and expenses [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
(Losses) reclassified into earnings, net				13.6
Loss recognized in income on non-designated derivatives	(28.0)			(119.4)
Foreign currency forward contract [Member] | Operating costs and expenses [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
(Loss) reclassified from other comprehensive income into income (ineffective portion)		0.0				0.0
Derivative Instruments, (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		(118.2)				(137.2)
Derivative Instruments, (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		$ (84.5)	[1]			$ (238.9)	[2]
Foreign currency forward contract [Member] | Operating costs and expenses [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss reclassified from Accumulated OCI into income	(28.0)			(122.1)	[3]
(Loss) gain recognized in income on derivatives	0.0			2.7
Unrealized gain (loss) on derivatives and commodity contracts	$ 0.0			0.0
Foreign currency forward contract [Member] | Reorganization items [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss recognized in income on non-designated derivatives				(36.4)
Foreign currency forward contract [Member] | Reorganization items [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss reclassified from Accumulated OCI into income				0.0
(Loss) gain recognized in income on derivatives				(36.4)
Unrealized gain (loss) on derivatives and commodity contracts				$ 0.0

[1] Includes the reclassification from "Accumulated other comprehensive loss" into earnings of $0.1 million of previously unrecognized gains on foreign currency cash flow hedge contracts monetized in the fourth quarter of 2012.

[2] Includes the reclassification from "Accumulated other comprehensive loss" into earnings of $14.9 million of previously unrecognized gains on foreign currency cash flow hedge contracts monetized in the fourth quarter of 2012.

[3] Includes the reclassification from "Accumulated other comprehensive loss" into earnings of $13.6 million and $9.0 million of previously unrecognized losses on foreign currency and fuel contracts, respectively, monetized in the first quarter of 2016.