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Post-employment Benefits - Summary of Assumptions to Determine Defined Benefit Obligations (Detail) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
Health Plan |  |
Aging factor | 3.00% |
Defined benefit [member] | Defined benefit [member] |  |
Health Plan |  |
Discount rate (per year) | 8.64% | 7.20%
Inflation rate (per year) | 3.25% | 3.00%
Increase in pension plans (per year) | 3.25% | 3.00%
Health plan [member] | Health Plan |  |
Health Plan |  |
Discount rate (per year) | 9.09% | 7.43%
Inflation rate (per year) | 3.50% | 3.50%
Future salary increases | 6.60% | 6.60%
Increase in pension plans (per year) | 3.00% | 6.60%
Overall mortality (segregated by gender) | AT-2000 |
Disable mortality table | IAPB-1957 |
Entry into disability (modified) | UP-84 Modified |
Turnover | 0.60/ (services time +1) |

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- Definition The aging factor used as a significant actuarial assumption to determine the present value of a defined benefit obligation. + References No definition available. + Details
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- Definition The disabled mortality rate used as a significant actuarial assumption to determine the present value of a defined benefit obligation. + References No definition available. + Details
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- Definition The entry into disability used as a significant actuarial assumption to determine the present value of a defined benefit obligation. + References No definition available. + Details
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- Definition The mortality used as a significant actuarial assumption to determine the present value of a defined benefit obligation. + References No definition available. + Details
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- Definition The turnover used as a significant actuarial assumption to determine the present value of a defined benefit obligation. + References No definition available. + Details
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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 increases in pension 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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