Note 19 - Summary of Reconciliation of Basic and Diluted Earnings Per Share (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Loss from continuing operations	$ (5)		$ (6)		$ (116)	$ (18)
Less: Series A convertible preferred stock cash dividend	(3)	$ (3)	(3)	$ (3)	(6)	(6)
Less: Series A convertible preferred stock deemed dividend	(2)	$ (2)	(2)	$ (2)	(4)	(4)
Loss from continuing operations available to common shareholders - basic and diluted	(10)		(11)		(126)	(28)
Net (loss) income	(5)		201		(116)	183
Net (loss) income available to common shareholders - basic and diluted	$ (10)		$ 196		$ (126)	$ 173
Weighted average shares — basic and diluted	43.7		43.0		43.7	43.0