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Note 12 - Pension Income (Expense) From Continuing and Discontinued Operations For All Defined Benefit Plans (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
UNITED STATES        
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]        
Service cost $ 3 $ 4 $ 6 $ 8
Interest cost 28 37 58 74
Expected return on plan assets (66) (68) (131) (136)
Prior service credit (1) (2) (3) (4)
Actuarial gain 2   2  
Net pension income before special termination benefits (34) (29) (68) (58)
Special termination benefits 2 1 3 5
Net pension income (32) (28) (65) (53)
Total net pension income (32) (28) (65) (53)
Non-US [Member]        
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]        
Service cost   1 1 2
Interest cost 4 5 7 9
Expected return on plan assets (7) (8) (14) (16)
Actuarial gain       (1)
Net pension income before special termination benefits (3) (2) (6) (6)
Net pension income (3) (2) (6) (6)
Other plans including unfunded plans   $ 2 (1) 4
Total net pension income $ (3)   $ (7) $ (2)