Post-employment Benefits - Weighted average durations (Details)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Seniority Premiums
Post-employment benefit plans
Weighted average duration of defined benefit obligation	8 years 2 months 12 days	8 years 4 months 24 days
Pensions
Post-employment benefit plans
Weighted average duration of defined benefit obligation	7 years	8 years

The weighted average duration of a defined benefit obligation. [Refer: Weighted average [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2019-01-01
-Paragraph 147
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_147_c&doctype=Standard
-URIDate 2019-03-27

Name:	ifrs-full_WeightedAverageDurationOfDefinedBenefitObligation2019
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration