Note 12 - Fair Value Measurements and Derivatives - Location and Amount of Gain or (Loss) Recognized in Income on Cash Flow Hedging Relationships (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Total amounts of income and expense line items presented in the consolidated statement of operations in which the effects of cash flow hedges are recorded	$ 1,926	$ 2,163
Cost of sales	1,720	1,863
Other expense, net	4	(13)
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member] | Cost of Sales [Member]
Amount of (gain) loss reclassified from AOCI into income	7	(1)
Currency Swap [Member] | Cash Flow Hedging [Member] | Other Expense [Member]
Amount of (gain) loss reclassified from AOCI into income	$ (18)	$ (23)