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Note 15 - Hedging Activities (Details) - Effect on Consolidated Financial Statements - 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 income	$ 80	$ 1,369	$ 435
Undesignated [Member]
Note 15 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items]
Gain (loss) recognized in income	85	1,411	622
Foreign Currency Transaction and Hedge Gain (Loss), Net [Member] | Foreign Exchange Contracts, Balance Sheet [Member]
Note 15 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items]
Gain (loss) recognized in income	8	29	100
Foreign Currency Transaction and Hedge Gain (Loss), Net [Member] | Foreign Exchange Contracts, Loans [Member]
Note 15 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items]
Gain (loss) recognized in income	(3)	13	87
Foreign Currency Transaction and Hedge Gain (Loss), Net [Member] | Translated Earnings Contracts [Member]
Note 15 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items]
Gain (loss) recognized in income	$ 80	$ 1,369	$ 435

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- References

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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5618551-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (a),(c),(d),(e)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959

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