Note 15 - Income Taxes (Details Textual) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Tax Expense (Benefit), Total	$ (16)	$ 20
Effective Income Tax Rate Reconciliation, Percent, Total	(80.00%)	17.00%
Goodwill, Impairment Loss, Net of Tax	$ 51
Other Tax Expense (Benefit)	1
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	$ 37
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount		$ 6
Effective Income Tax Rate Reconciliation, Excluding Effects of Special Items, Percent	23.00%	31.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		21.00%
Domestic Tax Authority [Member]
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	$ 2	$ (22)
Foreign Tax Authority [Member]
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	$ 4