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Note 12 - Commitments and Contingencies (Details) - Asset Retirement Obligation Activity (USD $)
In Millions, unless otherwise specified
4 Months Ended 8 Months Ended 12 Months Ended
Dec. 31, 2013
Successor [Member]
Aug. 31, 2013
Predecessor [Member]
Dec. 31, 2012
Predecessor [Member]
Note 12 - Commitments and Contingencies (Details) - Asset Retirement Obligation Activity [Line Items]      
Asset Retirement Obligations at start of period $ 51 $ 63 $ 61
Liabilities incurred in the current period   1 4
Liabilities settled in the current period   (5) (1)
Accretion expense 1 1 3
Revision in estimated cash flows   (1) (4)
Foreign exchange impact   (1)  
Impact of fresh start accounting   (7)  
Asset Retirement Obligations at end of period $ 52 $ 51 $ 63