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		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 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	$ 1,994	$ 2,164	$ 4,998	$ 6,633
Cost of sales	1,780	1,882	4,588	5,725
Other income (expense), net	(8)	(8)	(5)	(31)
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member] | Sales [Member]
Amount of (gain) loss reclassified from AOCI into income			1
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member] | Cost of Sales [Member]
Amount of (gain) loss reclassified from AOCI into income	3	(2)	15	(7)
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member] | Other Income (Expense) [Member]
Amount of (gain) loss reclassified from AOCI into income			1
Currency Swap [Member] | Cash Flow Hedging [Member] | Other Income (Expense) [Member]
Amount of (gain) loss reclassified from AOCI into income	$ 49	$ (47)	$ 51	$ (55)