Stockholders' Equity and Loss Per Share Reclassifications Out of Accumulated Other Comprehensive Loss (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net loss	$ (432.9)	$ (209.2)	$ (815.6)	$ (426.2)
Foreign Currency Gain (Loss) [Member]
Net loss				4.1
Discontinued Operations [Member]
Net loss				2.2
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Net loss				$ 2.5