Note 16 - Income Taxes - Effective Tax Rate Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
U.S. federal income tax rate, amount	$ 16	$ 37	$ (7)
U.S. federal income tax rate, percent	21.00%	21.00%	21.00%
State & local income taxes, net of federal benefit, amount	$ 1	$ (5)	$ (6)
State & local income taxes, net of federal benefit, percent	1.00%	(3.00%)	19.00%
Non-US income / expense, amount	$ 16	$ 35	$ (2)
Non-US income / expense, percent	20.00%	20.00%	7.00%
Credits & tax incentives, amount	$ 13	$ 9	$ (27)
Credits & tax incentives, percent	16.00%	5.00%	87.00%
US tax & withholding tax on non-US earnings, amount	$ 41	$ 41	$ 42
US tax & withholding tax on non-US earnings, percent	51.00%	23.00%	(135.00%)
Intercompany sale of certain operating assets, amount		$ (54)	$ (1)
Intercompany sale of certain operating assets, percent		(30.00%)	3.00%
Settlement and return adjustments, amount	$ 4	$ 23	$ (7)
Settlement and return adjustments, percent	5.00%	13.00%	23.00%
Enacted change in tax rates, amount	$ 3		$ (4)
Enacted change in tax rates, percent	4.00%		13.00%
Goodwill impairment, amount			$ 47
Goodwill impairment, percentage			(151.00%)
Miscellaneous items, amount	$ 3	$ 7	$ (6)
Miscellaneous items, percent	3.00%	4.00%	19.00%
Valuation allowance adjustments, amount	$ 42	$ 28	$ 255
Valuation allowance adjustments, percent	53.00%	15.00%	(822.00%)
Total expense	$ 139	$ 121	$ 284
Effective income tax rate, percent	174.00%	68.00%	(916.00%)