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The nominal value of capital issued.

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The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Total for all subsidiaries [member]]

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Corporate Information - Additional Information (Detail) ₱ / shares in Units, shares in Thousands, ₱ in Millions				12 Months Ended
	Nov. 30, 2011 shares	Mar. 14, 2006	Mar. 24, 2000	Dec. 31, 2025 PHP (₱) ₱ / shares shares	Dec. 31, 2024 PHP (₱) ₱ / shares shares	Dec. 31, 2023 PHP (₱)	Oct. 16, 2012 PHP (₱) ₱ / shares shares	Jun. 05, 2012 ₱ / shares	Oct. 26, 2011 shares	Feb. 28, 2007
Disclosure Of Corporate Information [Line Items]
Number of shares issued				1,093,000	1,093,000
Amount of shares outstanding				1,093,000	1,093,000
Address of entity's registered office				Ramon Cojuangco Building, Makati Avenue, Makati City, Philippines
Voting Preferred Stock [Member]
Disclosure Of Corporate Information [Line Items]
Number of shares issued				150,000	150,000
Par value \| ₱ / shares				₱ 1	₱ 1			₱ 1
Subscription price \| ₱				₱ 150	₱ 150	₱ 150
Amount of shares outstanding				150,000	150,000
American Depositary Shares [Member]
Disclosure Of Corporate Information [Line Items]
Par value \| ₱ / shares				₱ 5
Amount of shares outstanding				17,000
Metro Pacific Asset Holdings, Inc. [Member]
Disclosure Of Corporate Information [Line Items]
Percentage of interest in entity from shareholders										46.00%
Percentage of interest in entity from shareholders acquired										6.00%
First Pacific Group [Member]
Disclosure Of Corporate Information [Line Items]
Beneficial ownership decrease percentage				2.00%
NTT DOCOMO, Inc. [Member]
Disclosure Of Corporate Information [Line Items]
Percentage of economic and voting interest held by strategic partner		7.00%
Smart Communications, Inc. [Member]
Disclosure Of Corporate Information [Line Items]
Percentage of ownership			100.00%
NTT Communications Corporation [Member]
Disclosure Of Corporate Information [Line Items]
Percentage of economic and voting interest held by strategic partner		7.00%	15.00%
NTT Communications and NTT Docomo [Member]
Disclosure Of Corporate Information [Line Items]
Percentage of economic and voting interest held by strategic partner				20.35%
First Pacific Group and Philippine Affiliates [Member]
Disclosure Of Corporate Information [Line Items]
Percentage of interest in entity from shareholders				25.57%						28.00%
First Pacific Group and Philippine Affiliates [Member] \| Voting Preferred Stock [Member]
Disclosure Of Corporate Information [Line Items]
Percentage of economic and voting interest held by strategic partner				15.09%
JG Summit Group [Member]
Disclosure Of Corporate Information [Line Items]
Percentage of interest in entity from shareholders				11.27%
JG Summit Group [Member] \| Voting Preferred Stock [Member]
Disclosure Of Corporate Information [Line Items]
Percentage of economic and voting interest held by strategic partner				6.65%
JG Summit Holdings, Inc [Member]
Disclosure Of Corporate Information [Line Items]
Common shares issued									27,700
JG Summit Holdings, Inc [Member] \| First Pacific Group [Member]
Disclosure Of Corporate Information [Line Items]
Number of PLDT common shares sold	5,810
JG Summit Holdings, Inc [Member] \| NTT DOCOMO, Inc. [Member]
Disclosure Of Corporate Information [Line Items]
Number of PLDT common shares sold	4,560
Beneficial Trust Fund Holdings Inc. [Member]
Disclosure Of Corporate Information [Line Items]
Number of shares issued							150,000
Beneficial Trust Fund Holdings Inc. [Member] \| Voting Preferred Stock [Member]
Disclosure Of Corporate Information [Line Items]
Par value \| ₱ / shares							₱ 1
Subscription price \| ₱							₱ 150
NTT Group [Member] \| Voting Preferred Stock [Member]
Disclosure Of Corporate Information [Line Items]
Percentage of economic and voting interest held by strategic partner				12.01%