Note 16 - Retirement Plans - (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Retirement Plans [Line Items]
Loss from discontinued operations		$ 30	$ 47	$ 59
Defined Benefit Plan, Special Termination Benefits		3	9	8
UNITED STATES
Retirement Plans [Line Items]
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) (in Dollars)		(7)	(8)	(3)
Defined Benefit Plan, Amortization of Gains (Losses) (in Dollars)		(7)
Decrease in interest cost of defined benefit pension plans		31
Defined Benefit Plan, Special Termination Benefits		$ 3	$ 9	$ 8
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets		7.40%	7.40%	7.63%
UNITED STATES | Equity Securities [Member]
Retirement Plans [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations		10.00%	10.00%
UNITED STATES | Government Bonds [Member]
Retirement Plans [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations		23.00%	24.00%
Defined Benefit Plan, Target Plan Asset Allocations, Duration		18 years	18 years
Non-US [Member]
Retirement Plans [Line Items]
Defined Benefit Plan, Amortization of Gains (Losses) (in Dollars)			$ (2)
Decrease in interest cost of defined benefit pension plans		$ 4
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets		4.65%	4.69%	4.93%
Non-US [Member] | Equity Securities [Member]
Retirement Plans [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations		0.00%	0.00%
Non-US [Member] | Government Bonds [Member]
Retirement Plans [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations		9.00%	12.00%
Defined Benefit Plan, Target Plan Asset Allocations, Duration		13 years	13 years
Scenario, Forecast [Member]
Retirement Plans [Line Items]
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) (in Dollars)	$ 7
Defined Benefit Plan, Amortization of Gains (Losses) (in Dollars)	$ 3
Cash Balance Plan [Member]
Retirement Plans [Line Items]
Defined Benefit Plan Contributions By Employer Minimum Percentage Of Employee Salary		7.00%
Defined Benefit Plan Contributions By Employer Maximum Percentage Of Employee Salary		8.00%
Pension Plan [Member]
Retirement Plans [Line Items]
Loss from discontinued operations			$ 1	$ 1
United States Pension Plan of US Entity [Member]
Retirement Plans [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets		7.00%
Foreign Pension Plan [Member] | Minimum [Member]
Retirement Plans [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets		2.60%
Foreign Pension Plan [Member] | Maximum [Member]
Retirement Plans [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets		5.60%