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Pension plan obligations (Details 5)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
G 1 Plan [Member]
IfrsStatementLineItems [Line Items]
Discount rate - actual rate (NTN-B)	6.19%	5.53%	3.44%
Inflation rate	5.31%	3.00%	3.25%
Nominal rate of salary growth	7.42%	5.06%	5.32%
Mortality table	AT-2000	AT-2000	AT-2000
G 0 Plan [Member]
IfrsStatementLineItems [Line Items]
Discount rate - actual rate (NTN-B)	6.15%	5.26%	3.07%
Inflation rate	5.31%	3.00%	3.25%
Nominal rate of salary growth	7.42%	5.06%	5.32%
Mortality table	AT-2000	AT-2000	AT-2000

X

- Definition

The discount rate used as the significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2022-03-24
-Paragraph 144
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_144&doctype=Standard
-URIDate 2022-03-24

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X

- Definition

The expected rate of inflation that is used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit plans [member]; Defined benefit obligation, at present value; Actuarial assumptions [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2022-03-24
-Paragraph 144
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_144&doctype=Standard
-URIDate 2022-03-24

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X

- Definition

The expected rate of salary increases used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit plans [member]; Defined benefit obligation, at present value; Actuarial assumptions [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2022-03-24
-Paragraph 144
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_144&doctype=Standard
-URIDate 2022-03-24

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- References

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- References

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