Intangible assets - Summary of The Inputs To Determine Value In Use (Detail) - Rate	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
VBI
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Discount rate	11.80%
Tax rate	34.00%
Igah
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Discount rate	15.31%
Tax rate	34.00%
Minimum
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Discount rate	15.90%
Minimum \| Moneda
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
USD/CLP average exchange rate	815	736
Discount rate	12.10%	13.90%
Tax rate	27.00%
Maximum
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Discount rate	18.90%
Maximum \| Moneda
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
USD/CLP average exchange rate	830	751
Discount rate	13.70%	16.77%
Tax rate	35.00%
Chile \| Moneda
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Annual inflation rate	3.00%
Chile \| Minimum \| Moneda
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Annual inflation rate		3.00%
GDP Growth rate		2.00%
Chile \| Maximum \| Moneda
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Annual inflation rate		4.40%
GDP Growth rate		3.00%
United States of America \| Moneda
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Annual inflation rate	2.00%
United States of America \| Minimum
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Annual inflation rate	2.00%
United States of America \| Minimum \| Moneda
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Annual inflation rate		2.30%
GDP Growth rate		2.00%
United States of America \| Maximum
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Annual inflation rate	2.10%
United States of America \| Maximum \| Moneda
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Annual inflation rate		3.50%
GDP Growth rate		3.00%
Brazil \| Minimum
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Annual inflation rate	3.20%
Brazil \| Minimum \| VBI
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Annual inflation rate	3.30%
Brazil \| Minimum \| Igah
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Annual inflation rate	1.90%
Brazil \| Maximum
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Annual inflation rate	5.40%
Brazil \| Maximum \| VBI
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Annual inflation rate	8.10%
Brazil \| Maximum \| Igah
Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory [Line Items]
Annual inflation rate	8.10%

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]]

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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- 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]]

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- Definition

The average exchange rate used by the entity. Exchange rate is the ratio of exchange for two currencies.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2022-03-24

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The growth rate used to extrapolate cash flow projections beyond the period covered by the most recent budgets/forecasts for a cash-generating unit (group of units). [Refer: Cash-generating units [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2022-03-24
-Paragraph 134
-Subparagraph d
-Clause iv
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-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2022-03-24
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-URIDate 2022-03-24

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- Definition

Actuarial Assumptions Of Tax Rates

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Disclosure Of Detailed Information About Inputs To Determine Value In Use Explanatory.

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