Note 12 - Hedging Activities - Summary of Effect of Designated Derivative Financial Instruments on Consolidated Financial Statements (Details) - Designated as Hedging Instrument [Member] - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Gain (loss) reclassified from accumulated OCI into income		$ 9	$ (8)
Gain (loss) recognized in other comprehensive income (OCI)		26	(89)
Foreign Exchange Contract [Member]
Gain (loss) recognized in other comprehensive income (OCI)		26	(89)
Sales [Member]
Gain (loss) reclassified from accumulated OCI into income		2	1
Cost of Sales [Member]
Gain (loss) reclassified from accumulated OCI into income		7	5
Other Expense [Member]
Gain (loss) reclassified from accumulated OCI into income	[1]		$ (14)

[1] A loss of $14 million was reclassified from accumulated other comprehensive loss into other expense, net, resulting from the de-designation of certain cash flow hedges.