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Note 15 - Hedging Activities (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Oct. 31, 2012 USD ($)
Note 15 - Hedging Activities (Details) [Line Items] |  |  |  |
Derivative Asset, Notional Amount | $ 14,399,000,000 | $ 15,198,000,000 |  |
Interest Rate Swap [Member] |  |  |  |
Note 15 - Hedging Activities (Details) [Line Items] |  |  |  |
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net | 0 | $ 0 | $ 24,000,000 |
Interest Rate Swap [Member] | Fair Value Hedging [Member] |  |  |  |
Note 15 - Hedging Activities (Details) [Line Items] |  |  |  |
Number of Interest Rate Derivatives Held |  |  |  | 2
Derivative Asset, Notional Amount |  |  |  | $ 550,000,000
Forward Contracts [Member] | Cash Flow Hedging [Member] |  |  |  |
Note 15 - Hedging Activities (Details) [Line Items] |  |  |  |
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months | 4,800,000 |  |  |
Net Notional Value [Member] | Not Designated as Hedging Instrument [Member] | Collar Options [Member] |  |  |  |
Note 15 - Hedging Activities (Details) [Line Items] |  |  |  |
Derivative, Notional Amount | 2,900,000,000 |  |  |
Gross Notional Value [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward [Member] |  |  |  |
Note 15 - Hedging Activities (Details) [Line Items] |  |  |  |
Derivative Asset, Notional Amount | $ 6,400,000,000 |  |  |

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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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- Definition Nominal or face amount used to calculate payments on the derivative asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5580258-113959 + Details
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- Definition The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994 + Details
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- Definition The net gain (loss) recognized in earnings during the reporting period representing the amount of the cash flow hedges' ineffectiveness. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 + Details
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