Note 16 - Income Taxes (Details Textual) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Tax Expense (Benefit), Total	$ 22	$ (16)
Effective Income Tax Rate Reconciliation, Percent, Total	29.00%	(80.00%)
Goodwill, Impairment Loss		$ 51
Other Tax Expense (Benefit)		(1)
Effective Income Tax Rate Reconciliation, Tax Credit, Amount, Total		$ 37
Effective Income Tax Rate Reconciliation, Excluding Effects of Special Items, Percent		23.00%
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
Foreign Tax Authority [Member]
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount		$ 4