The amount of an entity’s obligation to transfer goods or services to a customer for which the entity has received consideration (or the amount is due) from the customer.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2019-01-01
-Paragraph 105
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2019-en-r&anchor=para_105&doctype=Standard
-URIDate 2019-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2019-01-01
-Paragraph 116
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2019-en-r&anchor=para_116_a&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_ContractLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

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

- Definition

The amount of current contract liabilities. [Refer: Contract liabilities]

+ References

+ Details

Name:	ifrs-full_CurrentContractLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of non-current contract liabilities. [Refer: Contract liabilities]

+ References

+ Details

Name:	ifrs-full_NoncurrentContractLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contract liabilities and unearned revenues.

+ References

No definition available.

+ Details

Name:	phi_ContractLiabilitiesAndUnearnedRevenues
Namespace Prefix:	phi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Current unearned revenues.

+ References

No definition available.

+ Details

Name:	phi_CurrentUnearnedRevenues
Namespace Prefix:	phi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Noncurrent unearned revenues.

+ References

No definition available.

+ Details

Name:	phi_NoncurrentUnearnedRevenues
Namespace Prefix:	phi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Unearned revenues.

+ References

No definition available.

+ Details

Name:	phi_UnearnedRevenues
Namespace Prefix:	phi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_OffsettingLiabilitiesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ifrs-full_CategoriesOfFinancialLiabilitiesAxis=phi_PrepaidContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CategoriesOfFinancialLiabilitiesAxis=phi_AdvanceMonthlyServiceFeesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CategoriesOfFinancialLiabilitiesAxis=phi_ShortTermAdvancesForInstallatinServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CategoriesOfFinancialLiabilitiesAxis=phi_LeasedFacilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CategoriesOfFinancialLiabilitiesAxis=phi_LongTermAdvancesFromEquipmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Income and Expenses - Summary of Contract Liabilities and Unearned Revenues Account (Detail) - PHP (₱) ₱ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Offsetting Liabilities [Line Items]
Total contract liabilities and unearned revenues	₱ 8,483	₱ 7,182	₱ 8,541
Contract liabilities:
Noncurrent	13	58
Current	44	87
Noncurrent	591	474
Current	7,835	6,563
Unearned revenues from prepaid contracts [member]
Offsetting Liabilities [Line Items]
Unearned revenues from prepaid contracts	5,454	4,059
Advance Monthly Service Fees
Offsetting Liabilities [Line Items]
Contract liabilities and unearned revenues	1,777	2,386
Short-term advances for installatin services [member]
Offsetting Liabilities [Line Items]
Contract liabilities and unearned revenues	726	558
Leased facilities [member]
Offsetting Liabilities [Line Items]
Contract liabilities and unearned revenues	469	34
Long-term advances from equipment [member]
Offsetting Liabilities [Line Items]
Contract liabilities and unearned revenues	₱ 57	₱ 145