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Note 21 - Financial liabilities at amortized cost - Deposits from credit institutions (Details) - EUR (€) € in Millions | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Deposits From Banks [Line Items] |  |
Deposits from credit institutions | € 33,307 | € 54,516
Deposits With Agreed Maturity [Member] |  |
Deposits From Banks [Line Items] |  |
Deposits from credit institutions | 18,616 | 25,941
Demand Deposits [Member] |  |
Deposits From Banks [Line Items] |  |
Deposits from credit institutions | 9,745 | 3,731
Repurchase Agreements [Member] |  |
Deposits From Banks [Line Items] |  |
Deposits from credit institutions | 4,946 | 24,843
Other Accounts [Member] |  |
Deposits From Banks [Line Items] |  |
Deposits from credit institutions | € 0 | € 0

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- References No definition available. + Details
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- Definition The amount of deposit liabilities from banks held by the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_55&doctype=Standard -URIDate 2017-03-09 + Details
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- Details
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- Details
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