Note 14 - Hedging Activities (Details) - Effect of Derivative Financial Instruments on Consolidated Financial Statements and Undesignated Derivatives (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012
Cash Flow Hedging [Member]
Note 14 - Hedging Activities (Details) - Effect of Derivative Financial Instruments on Consolidated Financial Statements and Undesignated Derivatives [Line Items]
Gain/(loss) recognized in other comprehensive income (OCI)	$ 52	[1]	$ (8)	[1]	$ 89	[1]	$ 47	[1]
Gain reclassified from accumulated OCI into income (effective)	29	[1],[2]	6	[1],[2]	50	[1],[2]	12	[1],[2]
Interest Rate Hedges [Member]
Note 14 - Hedging Activities (Details) - Effect of Derivative Financial Instruments on Consolidated Financial Statements and Undesignated Derivatives [Line Items]
Gain/(loss) recognized in other comprehensive income (OCI)	37	[1]			37	[1]	15	[1]
Gain reclassified from accumulated OCI into income (effective)	11	[1],[2]	3	[1],[2]	19	[1],[2]	6	[1],[2]
Foreign Exchange Contract [Member]
Note 14 - Hedging Activities (Details) - Effect of Derivative Financial Instruments on Consolidated Financial Statements and Undesignated Derivatives [Line Items]
Gain/(loss) recognized in other comprehensive income (OCI)	15	[1]	(8)	[1]	52	[1]	32	[1]
Gain reclassified from accumulated OCI into income (effective)	$ 18	[1],[2]	$ 3	[1],[2]	$ 31	[1],[2]	$ 6	[1],[2]

[1] Certain amounts for prior periods were reclassified to conform to the current year presentation.

[2] The amount of hedge ineffectiveness for the three months ended June 30, 2013 and 2012 was insignificant.