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Schedule of actuarial assumptions (Details) | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
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Pension Plans And Retirement Supplement Plans [member] |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Annual discount rate for present value of the actuarial obligation | 10.60% |  | 6.83% |  | 6.87% |
[custom:ActuarialAssumptionAnnualExpectedReturnOnPlanAssets-0] | 10.60% |  | 6.83% |  | 6.87% |
Long-term annual inflation rate | 5.03% |  | 3.32% |  | 3.61% |
Actuarial assumption of expected rates of salary increases | 5.03% |  | 3.32% |  | 3.61% |
General mortality table | AT-2000 S10% by sex |  | AT-2000 M S10% D10% |  | AT-2000 M S10% D10% |
Disability table | Not applicable |  | Not applicable |  | Not applicable |
Disabled mortality table | AT-83 IAM Male |  | AT-49 M |  | AT-49 M |
Real growth of contributions above inflation |  | [1] |  | [2] |  | [3]
Health Plan And Dental Plan [Member] |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Annual discount rate for present value of the actuarial obligation | 10.75% |  | 7.14% |  | 7.09% |
Long-term annual inflation rate | 5.03% |  | 3.32% |  | 3.61% |
General mortality table | AT-2000 M&F S10% D20% |  | AT-2000 M S10% D20% |  | AT-2000 M S10% D20% |
Disability table | Tasa 1927 100% |  | Álvaro Vindas D30% |  | Álvaro Vindas D30% |
Disabled mortality table | MI-85 Female |  | MI-85 F |  | MI-85 F |
Real growth of contributions above inflation | 1.00% | [1] | 1.00% | [2] | 1.00% | [3]
life insurance [member] |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |
Annual discount rate for present value of the actuarial obligation | 10.73% |  | 7.25% |  | 7.19% |
Long-term annual inflation rate | 5.03% |  | 3.32% |  | 3.61% |
Actuarial assumption of expected rates of salary increases | 6.29% |  | 4.56% |  | 4.85% |
General mortality table | AT-2000 M&F S10% D20% |  | AT-2000 M S10% D20% |  | AT-2000 M S10% D20% |
Disability table | Tasa 1927 100% |  | Álvaro Vindas D30% |  | Álvaro Vindas D30% |
Disabled mortality table | MI-85 Female |  | MI-85 F |  | MI-85 F |
Real growth of contributions above inflation |  | [1] |  | [2] |  | [3]
[1] | Starting in 2018, Company adopted the assumption of real growth of the contributions above inflation at the rate of 1% p.a.
[2] | Starting in 2018, Company adopted the assumption of real growth of the contributions above inflation at the rate of 1% p.a.
[3] | Starting in 2018, Company adopted the assumption of real growth of the contributions above inflation at the rate of 1% p.a.

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- 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 2021-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_144&doctype=Standard -URIDate 2021-03-24 + Details
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- 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 2021-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_144&doctype=Standard -URIDate 2021-03-24 + Details
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- 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 2021-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_144&doctype=Standard -URIDate 2021-03-24 + Details
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