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Note 7 - Risk Management - Market Risk in the year (Details) - EUR (€) € in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Breakdown Levels of VAR Line Items |  |  |
Value At Risk | € 22 | € 26 | € 24
Percentage of risk linked to interest rates, at the year end closing | 48% | 58% |
Percentage of Exchange rate risk, at the year end closing | 14% | 13% |
Percentage of equity volatility and correlation risk at the year end closing | 38% | 29% |
Level of confidence when estimate the maximum daily loss of a portfolio | 99.9% |  |
Time horizon when estimate the maximum daily loss of a portfolio | 250-day |  |
Number of exceptions in the internal VaR calculation model | 0-4 exceptions |  |
Weighted Average [Member] |  |  |
Breakdown Levels of VAR Line Items |  |  |
Value At Risk | € 27 |  |
Maximum [Member] |  |  |
Breakdown Levels of VAR Line Items |  |  |
Value At Risk | € 34 |  |

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- Definition The measure of a potential loss exposure as a result of future market movements, based on a specified confidence interval and measurement horizon. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2016-01-13 -Paragraph 41 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2016-03-30&anchor=para_41&doctype=Standard -URIDate 2016-03-31 + Details
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