Note 13 - Hedging Activities - Effect on Consolidated Financial Statements (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016		Sep. 30, 2015
Interest Rate Hedges [Member] | Cash Flow Hedging [Member] | Sales [Member]
Gain/(loss) recognized in other comprehensive income (OCI)					$ (7)
Gain reclassified from accumulated OCI into income (effective)	1	4	2	[1]	14	[1]
Interest Rate Hedges [Member] | Cash Flow Hedging [Member] | Cost of Sales [Member]
Gain reclassified from accumulated OCI into income (effective)	(13)	1	(27)	[1]	7	[1]
Foreign Exchange Contract [Member] | Cash Flow Hedging [Member] | Cost of Sales [Member]
Gain/(loss) recognized in other comprehensive income (OCI)	26	(58)	(37)		(24)
Gain reclassified from accumulated OCI into income (effective)				[1]		[1]
Cash Flow Hedging [Member]
Gain/(loss) recognized in other comprehensive income (OCI)	26	(58)	(37)		(31)
Gain reclassified from accumulated OCI into income (effective)	(12)	5	(25)	[1]	21	[1]
Gain/(loss) recognized in other comprehensive income (OCI)

[1] The amount of hedge ineffectiveness at June 30, 2016 and 2015 was insignificant.