Pension and Other Employee Benefits - Summary of Weighted Average Assumptions Used to Determine Pension Benefits of Defined Benefit Pension Plans (Detail)	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Defined Benefit Plans [Line Items]
Rate of increase in compensation	5.70%	5.70%	5.70%
Discount rate	6.00%	7.30%	5.30%
Investment Property [Member] \| Smart and Subsidiaries [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Rate of increase in compensation	5.00%	5.00%	5.00%
Discount rate	7.30%	7.30%	5.00%

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 2023-01-01
-Paragraph 144
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_144&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_ActuarialAssumptionOfDiscountRates
Namespace Prefix:	ifrs-full_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- 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

+ Details

Name:	ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases
Namespace Prefix:	ifrs-full_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfDefinedBenefitPlansLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=ifrs-full_InvestmentPropertyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=phi_SmartAndSubsidiariesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: