US GAAP Taxonomy (2011): Reorganized: us-gaap-dis-aro-pre-2011-01-31.xml

-Network: (420000 - Disclosure - Asset Retirement Obligations)
-us-gaap:Asset Retirement Obligation Disclosure [Abstract] {ID1}
-added:Asset Retirement Obligation [Table] {ID2}
-dei:Legal Entity [Axis] {ID3}
-dei:Entity [Domain] {ID4}
us-gaap:Parent Company [Member] {ID5}
-added:Asset Retirement Obligation [Line Items] {ID6}
us-gaap:Schedule of Change in Asset Retirement Obligation [Table Text Block] {ID7}
us-gaap:Schedule of Asset Retirement Obligations [Table Text Block] {ID8}
us-gaap:Asset Retirement Obligation Disclosure [Text Block] {ID9}
-added:Asset Retirement Obligation [Hierarchy] {ID10}
us-gaap:Asset Retirement Obligations, Description {ID11}
us-gaap:Asset Retirement Obligation, Legally Restricted Assets, Fair Value {ID12}
us-gaap:Asset Retirement Obligations, Significant Changes {ID13}
us-gaap:Asset Retirement Obligations, Liability Not Recognized {ID14}
us-gaap:Asset Retirement Obligation, Cash Paid to Settle {ID15}
-us-gaap:Asset Retirement Obligation [Roll Up] {ID16}
us-gaap:Asset Retirement Obligation, Current {ID17}
-us-gaap:Asset Retirement Obligations, Noncurrent [Roll Up] {ID18}
us-gaap:Mine Reclamation and Closing Liability, Noncurrent {ID19}
us-gaap:Oil and Gas Reclamation Liability, Noncurrent {ID20}
us-gaap:Decommissioning Liability, Noncurrent {ID21}
us-gaap:Spent Nuclear Fuel Obligation, Noncurrent {ID22}
us-gaap:Accrued Capping, Closure, Post-closure and Environmental Costs, Noncurrent {ID23}
us-gaap:Asset Retirement Obligations, Noncurrent, Total {ID24}
us-gaap:Asset Retirement Obligation, Total {ID25}
-us-gaap:Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] {ID26}
us-gaap:Asset Retirement Obligation, Beginning Balance {ID27}
-added:Asset Retirement Obligation, Period Increase (Decrease) [Roll Up] {ID28}
us-gaap:Asset Retirement Obligation, Liabilities Incurred {ID29}
us-gaap:Asset Retirement Obligation, Liabilities Settled {ID30}
us-gaap:Asset Retirement Obligation, Accretion Expense {ID31}
us-gaap:Asset Retirement Obligation, Revision of Estimate {ID32}
us-gaap:Asset Retirement Obligation, Foreign Currency Translation {ID33}
us-gaap:Asset Retirement Obligation, Period Increase (Decrease), Total {ID34}
us-gaap:Asset Retirement Obligation, Ending Balance {ID35}