The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
-IssueDate 2019-01-01
-Paragraph 24
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2019-en-r&anchor=para_24_a&doctype=Standard
-URIDate 2019-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2019-01-01
-Paragraph B16
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2019-en-r&anchor=para_B16&doctype=Appendix&subtype=B
-URIDate 2019-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 54
-Subparagraph e
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_54_e&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_InvestmentAccountedForUsingEquityMethod
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of investments in associates in an entity's separate financial statements. [Refer: Associates [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2019-01-01
-Paragraph 10
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2019-en-r&anchor=para_10&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_InvestmentsInAssociates
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of investments in joint ventures in an entity's separate financial statements. [Refer: Joint ventures [member]]

+ References

+ Details

Name:	ifrs-full_InvestmentsInJointVentures
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Disclosure of investments in associates and joint ventures.

+ References

No definition available.

+ Details

Name:	phi_DisclosureOfInvestmentsInAssociatesAndJointVenturesLineItems
Namespace Prefix:	phi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ifrs-full_JointVenturesAxis=phi_VegaTelecomIncBowArkenAndBrightshareMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_JointVenturesAxis=phi_MultisysMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_JointVenturesAxis=phi_TelecommunicationsConnectivityIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=phi_MediaQuestPhilippineDepositaryReceiptsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=phi_VoyagerInnovationsHoldingsPteLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=phi_DigitelCrossingIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=phi_AppcardIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=phi_AsiaOutsourcingBetaLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Investments in Associates and Joint Ventures - Carrying Value of Investments in Associates (Detail) - PHP (₱) ₱ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 03, 2018	Nov. 08, 2018	Dec. 31, 2017
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in associates	₱ 18,777	₱ 20,498
Carrying value of investments in joint ventures	35,086	34,929
Total carrying value of investments in associates and joint ventures	53,863	55,427			₱ 46,130
VTI, Bow Arken and Brightshare [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in joint ventures	32,538	32,541
Multisys [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in joint ventures	2,538	2,388	₱ 550	₱ 2,150
Telecommunications Connectivity, Inc., or TCI [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in joint ventures	10
MediaQuest PDRs [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in associates	9,747	9,262
Total carrying value of investments in associates and joint ventures	10,050	10,022
VIH [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in associates	8,219	10,487
Digitel Crossing, Inc. [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in associates	674	591
Appcard, Inc [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in associates	102	122
Asia Outsourcing Beta Limited [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in associates	₱ 35	₱ 36