Note 15 - Other (Income) Charges, Net (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Other Income And Expenses [Abstract]
Change in fair value of embedded conversion features derivative liability	[1]	$ (53)	$ 1
Loss on foreign exchange transactions		2
Other		(2)
Total		$ (53)	$ 1

[1] Refer to Note 24, “Financial Instruments”.