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Operating Segment Information - Summary of Revenues from External Customers by Category of Products and Services (Detail) - PHP (₱)
₱ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure Of Operating Segments [Line Items]      
Service revenues ₱ 208,382 ₱ 201,832 ₱ 195,344
Non-service revenues 8,451 9,121 9,018
Revenues 216,833 210,953 204,362
Wireless [Member]      
Disclosure Of Operating Segments [Line Items]      
Service revenues 96,989 94,994 95,060
Revenues 104,944 103,718 103,482
Wireless [Member] | Mobile [member]      
Disclosure Of Operating Segments [Line Items]      
Service revenues 95,508 93,365 93,029
Wireless [Member] | Home broadband [member]      
Disclosure Of Operating Segments [Line Items]      
Service revenues 1,481 1,629 2,028
Wireless [Member] | Others [member]      
Disclosure Of Operating Segments [Line Items]      
Service revenues     3
Wireless [Member] | Sale of mobile handsets and broadband data modems [member]      
Disclosure Of Operating Segments [Line Items]      
Non-service revenues 7,955 8,724 8,422
Fixed Line [Member]      
Disclosure Of Operating Segments [Line Items]      
Service revenues 111,393 106,838 100,284
Revenues 111,889 107,235 100,880
Fixed Line [Member] | Data [member]      
Disclosure Of Operating Segments [Line Items]      
Service revenues 82,893 81,509 77,889
Fixed Line [Member] | Voice and miscellaneous [member]      
Disclosure Of Operating Segments [Line Items]      
Service revenues 28,500 25,329 22,395
Fixed Line [Member] | Sale of phone units, devices and others [member]      
Disclosure Of Operating Segments [Line Items]      
Non-service revenues ₱ 496 ₱ 397 ₱ 596