Adjustments for gain (loss) on disposals investments in subsidiaries, joint ventures and associates to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Associates [member]; Joint ventures [member]; Subsidiaries [member]; Investments in subsidiaries, joint ventures and associates; Profit (loss)]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2019-01-01
-Paragraph 20
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2019-en-r&anchor=para_20&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of consideration paid or received in respect of both obtaining and losing control of subsidiaries or other businesses. [Refer: Subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
-IssueDate 2019-01-01
-Paragraph 40
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2019-en-r&anchor=para_40_a&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_ConsiderationPaidReceived
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

Number of shares sold by joint venture to other entity.

+ References

No definition available.

+ Details

Name:	phi_NumberOfSharesSoldByJointVentureToOtherEntity
Namespace Prefix:	phi_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=phi_PreferredSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=ifrs-full_OrdinarySharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Investments in Associates and Joint Ventures - Summary of Sale of PCEV Shares to MPIC (Detail) - PHP (₱) ₱ in Millions	Jul. 31, 2018	Dec. 18, 2017	Jun. 13, 2017	May 30, 2016	Apr. 14, 2015	Jun. 24, 2014	Jun. 06, 2012
Disclosure Of Joint Ventures [Line Items]
Number of Shares Sold					112,710,000	56,350,000
Selling Price	₱ 1,152	₱ 1,294	₱ 21,800	₱ 26,200	₱ 26,487	₱ 13,243
Deferred Gain Realized			₱ 4,962	₱ 4,962	₱ 2,838	₱ 1,418
Preferred Shares [Member]
Disclosure Of Joint Ventures [Line Items]
Number of Shares Sold			458,000,000	458,000,000			282,000,000
Selling Price							₱ 3,563
Deferred Gain Realized							₱ 2,012
Common Stock [Member]
Disclosure Of Joint Ventures [Line Items]
Number of Shares Sold			646,000,000	646,000,000