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Note 20 - Other Postretirement Benefits (Details) - Changes in the Company’s Benefit Obligation and Funded Status (USD $)
In Millions, unless otherwise specified
 4 Months Ended 8 Months Ended 12 Months Ended 8 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2013
Successor [Member]
Other Postretirement Benefit Plans [Member]
Dec. 31, 2013
Successor [Member]
Aug. 31, 2013
Predecessor [Member]
Other Postretirement Benefit Plans [Member]
Dec. 31, 2012
Predecessor [Member]
Other Postretirement Benefit Plans [Member]
Aug. 31, 2013
Predecessor [Member]
Dec. 31, 2012
Predecessor [Member]
Dec. 31, 2011
Predecessor [Member]
Note 20 - Other Postretirement Benefits (Details) - Changes in the Company’s Benefit Obligation and Funded Status [Line Items]                
Benefit obligation   $ 82   $ 137 $ 1,294      
Underfunded status at end of period   (78)   (82) (137)      
Service cost         1   1 1
Interest cost   1 1 3 44 3 44 64
Plan participants’ contributions   4   9 17      
Plan amendments         (460)      
Actuarial (gain) loss   (2)   (50) 117      
Settlements 532       (738)      
Benefit payments   (6)   (12) (134)      
Other         (6)      
Currency adjustments   (1)   (5) 2      
Benefit obligation   $ 78   $ 82 $ 137