Note 16 - Major Funded and Unfunded Defined Benefit Plans With Accumulated Benefit Obligation in Excess of Plan Assets (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
UNITED STATES
Major Funded And Unfunded Defined Benefit Plans With Accumulated Benefit Obligation In Excess Of Plan Assets [Line Items]
Projected benefit obligation	$ 3,908	$ 4,099
Accumulated benefit obligation	3,907	4,098
Fair value of plan assets	3,653	3,793
Non-US [Member]
Major Funded And Unfunded Defined Benefit Plans With Accumulated Benefit Obligation In Excess Of Plan Assets [Line Items]
Projected benefit obligation	541	524
Accumulated benefit obligation	532	516
Fair value of plan assets	$ 384	$ 412