Note 18 - Segments - Reconciliation of Segment EBITDA to Consolidated Net Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment EBITDA	$ 206	$ 259
Corporate expense and other items, net	(1)	(2)
Depreciation	(85)	(74)
Amortization	(4)	(3)
Non-service cost components of pension and OPEB costs	(2)	(6)
Restructuring charges, net	(3)	(9)
Stock compensation expense	(4)	(5)
Strategic transaction expenses	(6)	(13)
Impairment	(51)
Acquisition related inventory adjustments		(4)
Non-income tax legal judgment		6
Other items	(3)	(9)
Earnings before interest and income taxes	47	140
Interest income	2	2
Interest expense	29	27
Earnings before income taxes	20	115
Income tax expense (benefit)	(16)	20
Equity in earnings of affiliates	2	6
Net income	$ 38	$ 101