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Pension and Other Employee Benefits - Summary of Sensitivity Analysis on Defined Benefit Obligation of Defined Benefit Pension Plans (Detail) ₱ in Millions | Dec. 31, 2020 PHP (₱)
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Actuarial assumption of discount rates [member] |
Disclosure Of Sensitivity Analysis For Actuarial Assumptions [Line Items] |
Increase (decrease) in defined benefit obligation due to 1% increase | ₱ (2,869)
Increase (decrease) in defined benefit obligation due to 1% decrease | ₱ 3,448
Percentage of increase in defined benefit obligation | 1.00%
Percentage of decrease in defined benefit obligation | (1.00%)
Actuarial assumption of discount rates [member] | Defined Contribution Plans [member] |
Disclosure Of Sensitivity Analysis For Actuarial Assumptions [Line Items] |
Increase (decrease) in defined benefit obligation due to 1% increase | ₱ (25)
Increase (decrease) in defined benefit obligation due to 1% decrease | ₱ 96
Percentage of increase in defined benefit obligation | 3.50%
Percentage of decrease in defined benefit obligation | (0.90%)
Actuarial assumption of expected rates of salary increases [member] |
Disclosure Of Sensitivity Analysis For Actuarial Assumptions [Line Items] |
Increase (decrease) in defined benefit obligation due to 1% increase | ₱ 3,328
Increase (decrease) in defined benefit obligation due to 1% decrease | ₱ (2,835)
Percentage of increase in defined benefit obligation | 1.00%
Percentage of decrease in defined benefit obligation | (1.00%)
Actuarial assumption of expected rates of salary increases [member] | Defined Contribution Plans [member] |
Disclosure Of Sensitivity Analysis For Actuarial Assumptions [Line Items] |
Increase (decrease) in defined benefit obligation due to 1% increase | ₱ (92)
Increase (decrease) in defined benefit obligation due to 1% decrease | ₱ (25)
Percentage of increase in defined benefit obligation | 3.30%
Percentage of decrease in defined benefit obligation | (0.90%)

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- Definition The increase (decrease) in a defined benefit obligation that would have been caused by a decrease in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 145 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_145_a&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The increase (decrease) in a defined benefit obligation that would have been caused by an increase in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 145 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_145_a&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The reasonably possible percentage of the decrease in the actuarial assumption used to determine the present value of defined benefit obligation. [Refer: Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 145 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_145_a&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The reasonably possible percentage of the increase in the actuarial assumption used to determine the present value of defined benefit obligation. [Refer: Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 145 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_145_a&doctype=Standard -URIDate 2020-01-01 + Details
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