Note 19 - Segments - Reconciliation of Segment EBITDA to Consolidated Net Income (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Segment EBITDA	$ 212	$ 204		$ 681	$ 407
Corporate expense and other items, net	(2)	(3)		(4)	(6)
Depreciation	(92)	(88)		(272)	(257)
Amortization	(6)	(6)		(18)	(15)
Non-service cost components of pension and OPEB costs	(2)	(3)		(7)	(8)
Restructuring charges, net	(1)	(2)		(2)	(21)
Stock compensation expense	(6)	(2)		(15)	(5)
Strategic transaction expenses	(3)	(4)		(11)	(15)
Amounts attributable to previously divested/closed operations	(1)			(1)
Loss on investment in Hyliion						$ 33
Impairment of goodwill			$ (51)		(51)
Loss on disposal group held for sale				(7)
Loss on de-designation of fixed-to-fixed cross currency swaps				(9)
Other items	1	(7)			(5)
Earnings before interest and income taxes	94	89		315	24
Loss on extinguishment of debt				(24)	(5)
Interest income	2	3		6	7
Interest expense	31	38		99	99
Earnings (loss) before income taxes	65	54		198	(73)
Income tax expense	20	16		56	34
Equity in earnings of affiliates	5	7		29	17
Net income (loss)	50	$ 45		171	$ (90)
Hyliion Inc [Member]
Loss on investment in Hyliion	$ (6)			$ (20)