Note 16 - Income Taxes - Schedule of Income Tax Provision and Effective Tax Rate (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Loss from continuing operations before income taxes	$ (444)	$ (3)	$ (394)	$ (16)
Effective tax rate	(0.20%)	(233.30%)	(42.40%)	(75.00%)
Provision for income taxes	$ 1	$ 7	$ 167	$ 12
(Benefit) for income taxes at U.S. statutory tax rate	(93)	(1)	(83)	(3)
Difference between tax at effective vs. statutory rate	$ 94	$ 8	$ 250	$ 15