Reorganization Items, Net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2016	Sep. 30, 2015
Payments for reorganization items, net				$ 30.7
Reorganization Items, net	$ 29.7	$ 0.0	$ (125.1)	125.1	$ 0.0
Loss on termination of derivative contracts [Member]
Reorganization Items, net	0.0			75.2
Professional fee [Member]
Reorganization Items, net	31.1			52.7
accounts payable settlement (gains) losses [Member]
Reorganization Items, net	(0.5)			(0.7)
Interest Income [Member]
Reorganization Items, net	(0.9)			(1.1)
Other reorganization items [Member]
Reorganization Items, net	$ 0.0			$ (1.0)