Income Taxes (Details 6) (USD $)	Dec. 31, 2012
Operating Loss Carryforwards
Deferred tax asset relating to NOL carryforwards that have an indefinite life	$ 1,450,000,000
Recognized valuation allowance relating to NOL carryforwards	1,450,000,000
Operating Loss Carryforwards
Expiring NOLs	1,178,770,000
Non-expiring NOLs	4,972,658,000
Total	6,151,428,000
2013
Operating Loss Carryforwards
Expiring NOLs	24,552,000
2014
Operating Loss Carryforwards
Expiring NOLs	4,531,000
2015
Operating Loss Carryforwards
Expiring NOLs	21,567,000
2016
Operating Loss Carryforwards
Expiring NOLs	34,058,000
2017
Operating Loss Carryforwards
Expiring NOLs	47,961,000
2018
Operating Loss Carryforwards
Expiring NOLs	51,197,000
2019
Operating Loss Carryforwards
Expiring NOLs	28,518,000
2020
Operating Loss Carryforwards
Expiring NOLs	16,394,000
2021
Operating Loss Carryforwards
Expiring NOLs	23,086,000
2022
Operating Loss Carryforwards
Expiring NOLs	1,514,000
2027
Operating Loss Carryforwards
Expiring NOLs	114,000
2028
Operating Loss Carryforwards
Expiring NOLs	22,982,000
2029
Operating Loss Carryforwards
Expiring NOLs	51,813,000
2030
Operating Loss Carryforwards
Expiring NOLs	329,997,000
2031
Operating Loss Carryforwards
Expiring NOLs	413,899,000
2032
Operating Loss Carryforwards
Expiring NOLs	106,587,000
U.S. Federal
Operating Loss Carryforwards
NOL carryforwards for alternative minimum tax purpose	528,000,000
Operating Loss Carryforwards
Expiring NOLs	649,000,000
Non-U.S.
Operating Loss Carryforwards
Expiring NOLs	529,973,000
Non-expiring NOLs	4,972,658,000
Total	5,502,631,000
Non-U.S. | 2013
Operating Loss Carryforwards
Expiring NOLs	24,552,000
Non-U.S. | 2014
Operating Loss Carryforwards
Expiring NOLs	4,531,000
Non-U.S. | 2015
Operating Loss Carryforwards
Expiring NOLs	21,567,000
Non-U.S. | 2016
Operating Loss Carryforwards
Expiring NOLs	34,058,000
Non-U.S. | 2017
Operating Loss Carryforwards
Expiring NOLs	47,961,000
Non-U.S. | 2018
Operating Loss Carryforwards
Expiring NOLs	39,494,000
Non-U.S. | 2019
Operating Loss Carryforwards
Expiring NOLs	10,796,000
Non-U.S. | 2020
Operating Loss Carryforwards
Expiring NOLs	16,394,000
Non-U.S. | 2021
Operating Loss Carryforwards
Expiring NOLs	23,086,000
Non-U.S. | 2022
Operating Loss Carryforwards
Expiring NOLs	1,514,000
Non-U.S. | 2027
Operating Loss Carryforwards
Expiring NOLs	114,000
Non-U.S. | 2028
Operating Loss Carryforwards
Expiring NOLs	22,982,000
Non-U.S. | 2029
Operating Loss Carryforwards
Expiring NOLs	51,813,000
Non-U.S. | 2030
Operating Loss Carryforwards
Expiring NOLs	49,265,000
Non-U.S. | 2031
Operating Loss Carryforwards
Expiring NOLs	75,259,000
Non-U.S. | 2032
Operating Loss Carryforwards
Expiring NOLs	106,587,000
State Income Tax
Operating Loss Carryforwards
Expiring NOLs	382,000,000
Total	648,797,000
State Income Tax | 2018
Operating Loss Carryforwards
Expiring NOLs	11,703,000
State Income Tax | 2019
Operating Loss Carryforwards
Expiring NOLs	17,722,000
State Income Tax | 2030
Operating Loss Carryforwards
Expiring NOLs	280,732,000
State Income Tax | 2031
Operating Loss Carryforwards
Expiring NOLs	$ 338,640,000