Note 8 - Fair Value Transfer Between Levels - Liabilities (Details) - Financial Liabilities At Fair Value Through Profit Or Loss Classified As Held For Trading Member [Member] € in Millions	12 Months Ended
Dec. 31, 2017 EUR (€)
Level 1 Of Fair Value Hierarchy [Member]
Level Transfer Liabilities Line Items
Transfers Out Of Level 1 Into Level 2 Of Fair Value Hierarchy Liabilities	€ 0
Transfers Into Level 3 Of Fair Value Hierarchy Liabilities	0
Transfers Out Of Level 2 Into Level 1 Of Fair Value Hierarchy Liabilities	0
Level 2 Of Fair Value Hierarchy [Member]
Level Transfer Liabilities Line Items
Transfers Out Of Level 1 Into Level 2 Of Fair Value Hierarchy Liabilities	0
Transfers Into Level 3 Of Fair Value Hierarchy Liabilities	0
Transfers Out Of Level 2 Into Level 1 Of Fair Value Hierarchy Liabilities	€ 0

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- Definition

The amount of transfers of liabilities into Level 3 of the fair value hierarchy. [Refer: Level 3 of fair value hierarchy [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 13
-IssueDate 2016-01-13
-Paragraph 93
-Subparagraph e
-Clause iv
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=13&date=2016-03-30&anchor=para_93_e_iv&doctype=Standard
-URIDate 2016-03-31

+ Details

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- Definition

The amount of transfers out of Level 1 and into Level 2 of the fair value hierarchy of liabilities held at the end of the reporting period. [Refer: Level 1 of fair value hierarchy [member]; Level 2 of fair value hierarchy [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 13
-IssueDate 2016-01-13
-Paragraph 93
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=13&date=2016-03-30&anchor=para_93_c&doctype=Standard
-URIDate 2016-03-31

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- Definition

The amount of transfers out of Level 2 and into Level 1 of the fair value hierarchy of liabilities held at the end of the reporting period. [Refer: Level 1 of fair value hierarchy [member]; Level 2 of fair value hierarchy [member]]

+ References

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