Note 14 - Hedging derivatives and fair value changes of the hedged items in portfolio hedge of interest rate risk - Derivatives Hedging Accounting (Details) - EUR (€) € in Millions	Jun. 30, 2019	Dec. 31, 2018
Assets
HEDGING DERIVATIVES, ASSETS	€ 3,105	€ 2,892
FAIR VALUE CHANGES OF THE HEDGED ITEMS IN PORTFOLIO HEDGES OF INTEREST RATE RISK, ASSETS	40	(21)
Liabilities Abstract
HEDGING DERIVATIVES, LIABILITIES	3,281	2,680
FAIR VALUE CHANGES OF THE HEDGED ITEMS IN PORTFOLIO HEDGES OF INTEREST RATE RISK, LIABILITIES	€ 0	€ 0

The accumulated amount of fair value hedge adjustment on a hedged item that is included in the carrying amount of the hedged item, recognised in the statement of financial position as an asset. [Refer: Hedged items [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2018-01-01
-Paragraph 24B
-Subparagraph a
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_24B_a_ii&doctype=Standard
-URIDate 2018-03-16

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The amount of derivative financial assets held for hedging. [Refer: Derivative financial assets]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard
-URIDate 2018-03-16

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The amount of derivative financial liabilities held for hedging. [Refer: Derivative financial liabilities]

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