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Note 13 - Hedging Activities (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Billions | Jun. 30, 2015 | Dec. 31, 2014
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Gross Notional Value [Member] | Translated Earnings Contracts [Member] |  |
Note 13 - Hedging Activities (Details) [Line Items] |  |
Derivative, Notional Amount | $ 13.2 | $ 12.1
Gross Notional Value [Member] | Collar Options [Member] |  |
Note 13 - Hedging Activities (Details) [Line Items] |  |
Derivative, Notional Amount | 5.3 | 2.3
Gross Notional Value [Member] | Foreign Exchange Forward [Member] |  |
Note 13 - Hedging Activities (Details) [Line Items] |  |
Derivative, Notional Amount | 7.9 | 9.8
Net Notional Value [Member] | Collar Options [Member] |  |
Note 13 - Hedging Activities (Details) [Line Items] |  |
Derivative, Notional Amount | $ 2.8 | $ 1.2

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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