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Post-Employment Benefits - Summary of Changes in Net Amount Recognized in Balance Sheet (Parenthetical) (Detail) | Dec. 31, 2021 | Jan. 01, 2021 | Dec. 31, 2020 | Jan. 01, 2020
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Disclosure of defined benefit plans [abstract] |  |  |  |
Discount rate | 9.46% | 7.64% | 7.64% | 7.64%

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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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Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | ifrs-full_
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Balance Type: | na
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