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Note 15 - Hedging Activities (Details) - Effect on Consolidated Financial Statements - Cash Flow Hedging [Member] - USD ($) $ in Millions | 12 Months Ended
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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 other comprehensive income (OCI) |  | $ (24) | $ 17 | $ 89
Gain reclassified from accumulated OCI into income (effective) | [1] | 26 | 10 | 129
Sales [Member] | Interest Rate Hedges [Member] |  |  |  |
Note 15 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items] |  |  |  |
Gain reclassified from accumulated OCI into income (effective) | [1] | 20 | 3 |
Cost of Sales [Member] | Interest Rate Hedges [Member] |  |  |  |
Note 15 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items] |  |  |  |
Gain/(loss) recognized in other comprehensive income (OCI) |  | (7) | (3) | 33
Gain reclassified from accumulated OCI into income (effective) | [1] | 6 | 7 | 38
Other Income [Member] | Foreign Exchange Contract [Member] |  |  |  |
Note 15 - Hedging Activities (Details) - Effect on Consolidated Financial Statements [Line Items] |  |  |  |
Gain/(loss) recognized in other comprehensive income (OCI) |  | $ (17) | $ 20 | 56
Gain reclassified from accumulated OCI into income (effective) | [1] |  |  | $ 91
[1] | There were no material amounts of ineffectiveness for 2015 and 2014 and the amount of hedge ineffectiveness for the year ended December 31, 2013 was $24 million related to interest rate swaps settled in the fourth quarter.

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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + 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 (c) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624177-113959 + Details
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- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + 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 (b) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 + Details
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