Note 22 - Financial liabilities at amortized cost (Details) - EUR (€) € in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Deposits
Deposits from cental banks	€ 37,054	€ 34,740	€ 40,087
Deposits from credit institutions	54,516	63,501	68,543
Customer deposits	376,379	401,465	403,362
Debt certificates, at amortized cost	63,915	76,375	81,980
Other financial liabilities, at amortized cost	11,850	13,129	12,141
FINANCIAL LIABILITIES AT AMORTIZED COST	€ 543,714	€ 589,210	€ 606,113

No definition available.

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- Definition

The amount of instruments issued by the entity that represent indebtedness.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ Details

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- Definition

The amount of deposit liabilities from banks held by the entity.

+ References

+ Details

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- Definition

The amount of deposit liabilities from customers held by the entity.

+ References

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- Definition

The amount of financial liabilities at amortised cost. The amortised cost is the amount at which financial liabilities are measured at initial recognition minus principal repayments, plus or minus the cumulative amortisation using the effective interest method of any difference between that initial amount and the maturity amount. [Refer: Financial liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2018-01-01
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amount of liabilities due to central banks.

+ References

+ Details

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- Definition

The amount of financial liabilities that the entity does not separately disclose in the same statement or note. [Refer: Financial liabilities]

+ References

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