Appendix II: Board and Senior Management Compensation - Life Insurance Premiums (Details) - Life insurance premiums	12 Months Ended
Dec. 31, 2019 EUR (€)
Mr. José María Álvarez-Pallete López
Disclosure of transactions between related parties [line items]
Life insurance premiums	€ 27,509
Mr. Ángel Vilá Boix
Disclosure of transactions between related parties [line items]
Life insurance premiums	€ 13,799

The amount of expense arising from insurance contracts. [Refer: Types of insurance contracts [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2021-01-01
-Name IFRS
-Number 4
-IssueDate 2019-01-01
-Paragraph 37
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2019-en-b&anchor=para_37_b&doctype=Standard&book=b
-URIDate 2019-03-27

Name:	ifrs-full_ExpenseArisingFromInsuranceContracts
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration