Note 15 - Hedging Activities (Details) - Effect on Consolidated Financial Statements - Cash Flow Hedging [Member] - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Note 15 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items]
Gain/(loss) recognized in other comprehensive income (OCI)		$ (24)	$ 17	$ 89
Gain reclassified from accumulated OCI into income (effective)	[1]	26	10	129
Sales [Member] | Interest Rate Hedges [Member]
Note 15 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items]
Gain reclassified from accumulated OCI into income (effective)	[1]	20	3
Cost of Sales [Member] | Interest Rate Hedges [Member]
Note 15 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items]
Gain/(loss) recognized in other comprehensive income (OCI)		(7)	(3)	33
Gain reclassified from accumulated OCI into income (effective)	[1]	6	7	38
Other Income [Member] | Foreign Exchange Contract [Member]
Note 15 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items]
Gain/(loss) recognized in other comprehensive income (OCI)		$ (17)	$ 20	56
Gain reclassified from accumulated OCI into income (effective)	[1]			$ 91

[1] There were no material amounts of ineffectiveness for 2015 and 2014 and the amount of hedge ineffectiveness for the year ended December 31, 2013 was $24 million related to interest rate swaps settled in the fourth quarter.