Note 18 - Summary of Reconciliation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share [Abstract]
(Loss) income from continuing operations	$ (6)		$ 3		$ (18)	$ (22)
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	(11)		(2)		(28)	(32)
Net income (loss)	201		4		183	(21)
Net income (loss) available to common shareholders - basic and diluted	$ 196		$ (1)		$ 173	$ (31)

Deemed preferred stock dividends.

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Earnings from continuing operations available to common shareholders basic and diluted.

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Net income (loss) available to common shareholders basic and diluted.

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Amount after tax of income (loss) from continuing operations attributable to the parent.

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