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Note 9 - Retirement Plans and Other Postretirement Benefits (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Note 9 - Retirement Plans and Other Postretirement Benefits (Details) [Line Items]        
Restructuring Charges $ 6 $ 20 $ 23 $ 33
Pension Plan [Member]        
Note 9 - Retirement Plans and Other Postretirement Benefits (Details) [Line Items]        
Defined Benefit Plan, Contributions by Employer     2  
Other Postretirement Benefit Plan [Member]        
Note 9 - Retirement Plans and Other Postretirement Benefits (Details) [Line Items]        
Defined Benefit Plan, Benefits Paid     3  
Special Termination Benefits [Member]        
Note 9 - Retirement Plans and Other Postretirement Benefits (Details) [Line Items]        
Restructuring Charges     $ 5