Nota 21 - Non-current assets and disposal groups classified as held for sale. Non-current assets and disposal groups classified as held for sale. Breakdown by items (Details) - EUR (€)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Non-current Assets Or Disposal Groups Classified As Held For Sale
Non Current Assets Or Disposal Groups Clasified As Held For Sale	€ 3,079,000,000	€ 2,001,000,000	€ 23,853,000,000

The amount of non-current assets or disposal groups classified as held for sale. [Refer: Disposal groups classified as held for sale [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 5
-IssueDate 2019-01-01
-Paragraph 38
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2019-en-r&anchor=para_38&doctype=Standard
-URIDate 2019-03-27

Name:	ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant