Note 13 - Other (Income) Charges, Net (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Other Income And Expenses [Abstract]
Change in fair value of embedded conversion features derivative liability	[1]	$ 1	$ 14
Loss on foreign exchange transactions			2
Total		$ 1	$ 16

[1] Refer to Note 23, “Financial Instruments”.