Note 44 - Administration Costs - Average Number Of Employees By Geographical Area - Gender Of Employees (Details) - Employee	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Male
Gender Of Average Employeees Line Items
Average Number Of Employees	60,730	62,738	57,841
Female
Gender Of Average Employeees Line Items
Average Number Of Employees	71,774	73,939	66,355

The average number of personnel employed by the entity during a period.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2016-01-13
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2016-03-30&anchor=para_112_c&doctype=Standard
-URIDate 2016-03-31

Name:	ifrs-full_AverageNumberOfEmployees
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration