Note 19 - Financial Instruments - Gain (Loss) on Embedded Derivatives (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Change in fair value of the Preferred Stock and Convertible Notes embedded derivatives	[1]	$ 1	$ (4)	$ 2	$ (1)

[1] Refer to Note 19, "Financial Instruments".