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		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 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	$ 1,078	$ 2,306	$ 3,004	$ 4,469
Cost of sales	1,088	1,980	2,808	3,843
Other expense, net	(1)	(10)	3	(23)
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member] | Sales [Member]
Amount of (gain) loss reclassified from AOCI into income	1		1
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member] | Cost of Sales [Member]
Amount of (gain) loss reclassified from AOCI into income	5	(3)	12	(5)
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member] | Other Expense [Member]
Amount of (gain) loss reclassified from AOCI into income	1
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member] | Other Income [Member]
Amount of (gain) loss reclassified from AOCI into income			1
Currency Swap [Member] | Cash Flow Hedging [Member] | Other Expense [Member]
Amount of (gain) loss reclassified from AOCI into income	$ 21	$ 15		$ (8)
Currency Swap [Member] | Cash Flow Hedging [Member] | Other Income [Member]
Amount of (gain) loss reclassified from AOCI into income			$ 2