Note 17 - Segments - Reconciliation of Segment EBITDA to Consolidated Net Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment EBITDA	$ 242	$ 190	$ 693	$ 524
Corporate expense and other items, net		2	(4)
Depreciation	(101)	(88)	(287)	(270)
Amortization	(6)	(6)	(17)	(17)
Non-service cost components of pension and OPEB costs	(4)	0	(10)	(3)
Restructuring charges, net	(17)	1	(21)	1
Stock compensation expense	(5)	(5)	(19)	(13)
Strategic transaction expenses	(2)	(1)	(4)	(6)
Distressed supplier costs	(14)		(26)
Impairment of goodwill		(191)		(191)
Other items	(2)	(3)		(1)
Earnings (loss) before interest and income taxes	91	(101)	305	24
Loss on extinguishment of debt			(1)
Interest income	5	2	14	6
Interest expense	41	32	114	95
Earnings (loss) before income taxes	55	(131)	204	(65)
Income tax expense	33	31	118	67
Equity in earnings (loss) of affiliates	3	(1)	6	(1)
Net income (loss)	$ 25	$ (163)	$ 92	$ (133)