Equity Equity - Common Stock Table (Details) - shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Stock, Shares, Issued Beginning of Period	896,279,353
Stock option exercises	0	0	14,000
Common Stock, Shares, Issued End of Period	908,732,809	896,279,353
Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Stock, Shares, Issued Beginning of Period	896,279,000	664,796,000	664,944,000
Restricted stock issuances (net of forfeitures and cancellations)	2,488,000	1,945,000	(163,000)
Stock option exercises	0	0	15,000
Common Stock, Shares, Issued End of Period	908,733,000	896,279,000	664,796,000
Common Stock [Member] | Contingent Convertible Senior Notes Exchanged for Shares of Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Shares, Conversion of Convertible Securities	0	55,428,000	0
Common Stock [Member] | Senior Notes Exchanged for Shares of Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Shares, Conversion of Convertible Securities	0	53,924,000	0
Common Stock [Member] | Preferred Stock, Exchanged for Shares of Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Shares, Conversion of Convertible Securities	9,966,000	120,186,000	0