Note 14 - Pension Income (Expense) From Continuing and Discontinued Operations For All Defined Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Pension Income Expense From Continuing Operations For All Defined Benefit Plans [Line Items]
Total net pension income	$ (28)	$ (32)
U.S. [Member]
Pension Income Expense From Continuing Operations For All Defined Benefit Plans [Line Items]
Service cost	3	3
Interest cost	28	29
Expected return on plan assets	(56)	(61)
Prior service credit	(2)	(2)
Actuarial loss	1
Net pension income before special termination benefits	(26)	(31)
Special termination benefits		1
Net pension income	(26)	(30)
Total net pension income	(26)	(30)
Non-US [Member]
Pension Income Expense From Continuing Operations For All Defined Benefit Plans [Line Items]
Service cost	1	1
Interest cost	3	3
Expected return on plan assets	(7)	(7)
Actuarial loss	1	1
Net pension income before special termination benefits	(2)	(2)
Net pension income	(2)	(2)
Total net pension income	$ (2)	$ (2)