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Note 10 - Retirement Plans and Other Postretirement Benefits (Details) - Postretirement Benefit Costs (Postretirement Benefit Plan [Member], USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2014
Successor [Member]
Jun. 30, 2014
Successor [Member]
Jun. 30, 2013
Predecessor [Member]
Jun. 30, 2013
Predecessor [Member]
Note 10 - Retirement Plans and Other Postretirement Benefits (Details) - Postretirement Benefit Costs [Line Items]        
Service cost $ 0 $ 0 $ 0 $ 0
Interest cost 1 2 1 2
Amortization of:        
Prior service credit     (29) (57)
Net actuarial loss     2 3
Total net postretirement benefit expense (income) $ 1 $ 2 $ (26) $ (52)