Note 16 - Income Taxes (Details Textual) - USD ($) $ in Millions	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2022
Income Tax Expense (Benefit), Total	$ 14	$ 34		$ 36	$ 18
Effective Income Tax Rate Reconciliation, Percent, Total				27.00%	(14.00%)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount		$ 56
Goodwill, Impairment Loss			$ 51		$ 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					8.00%
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
GERMANY | Forecast [Member]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount						$ (50)