Shareowners' Deficit (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2003
Class of Stock [Line Items]
Common Stock, Par or Stated Value Per Share		$ 0.01	$ 0.01
Common Stock, Shares, Outstanding		208,165,275	202,468,710
Stock Repurchase Program, Authorized Amount		$ 150
Repurchase and retirement of shares		0	(100,000)
Treasury Stock, Shares, Acquired			0	3,400,000
Treasury Stock, Value, Acquired, Cost Method				10.8
Stock Repurchase Program, Remaining Authorized Repurchase Amount		129.2
Treasury Stock, Shares		500,000	500,000
Treasury Stock, Value		2.0	2.0
Preferred Stock, Shares Authorized		2,357,299	2,357,299
Preferred Stock, Shares Issued		155,250	155,250
Preferred Stock, Depositary Shares		3,105,000	3,105,000
Preferred Stock Converstion Rate		1.44
Preferred Stock, Dividends, Per Share, Cash Paid		$ 67.50
Preferred stock dividends per depositary share		$ 3.3752
Preferred Stock, Liquidation Preference Per Share		$ 1,000	$ 1,000
Preferred Stock Liquidation Preference Per Depositary Share		$ 50	$ 50
Preferred Stock Dividends and Other Adjustments		10.4	10.4	10.4
Class of Warrant or Right, Outstanding		0			17,500,000
Class of Warrant or Right, Exercise Price of Warrants or Rights	3.00
Warrants exercised	14,300,000		3,200,000	0
Stock Issued During Period, Shares, Conversion of Convertible Securities	4,400,000
Proceeds from Warrant Exercises	$ 5.1		$ 0.1
Warrants exercised, cash basis	1,700,000
Common Stock [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, Conversion of Convertible Securities			1,500,000
Preferred Voting Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Authorized		1,357,299
Nonvoting Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Authorized		1,000,000
Common Stock [Member]
Class of Stock [Line Items]
Repurchase and retirement of shares				3,300,000
Stock Issued During Period, Shares, Conversion of Convertible Securities		4,400,000	1,500,000