Note 16 - Income Taxes (Details Textual) - USD ($) $ in Millions	3 Months Ended				9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2022
Income Tax Expense (Benefit), Total	$ 20	$ 16			$ 56	$ 34
Effective Income Tax Rate Reconciliation, Percent, Total					28.00%	(46.00%)
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						(45.00%)
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			$ 56	$ 4
GERMANY | Forecast [Member]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount							$ (50)