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Note 13 - Hedging Activities - Effect on Consolidated Financial Statements (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Foreign Exchange Contracts, Balance Sheet [Member] | Foreign Currency Transaction and Hedge Gain (Loss), Net [Member] |  |  |  |
Gain (loss) recognized in income | $ (13) | $ 2 | $ (28) | $ 13
Foreign Exchange Contracts, Loans [Member] | Foreign Currency Transaction and Hedge Gain (Loss), Net [Member] |  |  |  |
Gain (loss) recognized in income | (22) |  | (44) | 2
Translated Earnings Contracts [Member] | Foreign Currency Transaction and Hedge Gain (Loss), Net [Member] |  |  |  |
Gain (loss) recognized in income | (1,201) | 162 | (2,058) | 191
Undesignated [Member] |  |  |  |
Gain (loss) recognized in income | $ (1,236) | $ 164 | (2,130) | 206
Gain (loss) recognized in income |  |  | $ (2,058) | $ 191

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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=64837297&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=64837297&loc=SL5624171-113959 + Details
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