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Management's Use of Accounting Judgments, Estimates and Assumptions - Additional Information (Detail 1) - PHP (₱)
₱ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Managements Use Of Accounting Judgments Estimates And Assumptions [Line Items]      
Additional charges to profit or loss   ₱ 13,924  
Bottom of range [member]      
Managements Use Of Accounting Judgments Estimates And Assumptions [Line Items]      
Amortization period of subscriber contract costs 3 years    
Top of range [member]      
Managements Use Of Accounting Judgments Estimates And Assumptions [Line Items]      
Amortization period of subscriber contract costs 6 years    
Three G Technology Related Equipment      
Managements Use Of Accounting Judgments Estimates And Assumptions [Line Items]      
Additional depreciation recognized     ₱ 9,421
Enterprise-wide Network Asset Physical Verification Activity [Member]      
Managements Use Of Accounting Judgments Estimates And Assumptions [Line Items]      
Additional depreciation recognized     3,044
Softwares and Related Services Upgraded [Member]      
Managements Use Of Accounting Judgments Estimates And Assumptions [Line Items]      
Additional depreciation recognized     2,122
PLDT Communications and Energy Ventures, Inc. [Member]      
Managements Use Of Accounting Judgments Estimates And Assumptions [Line Items]      
Additional depreciation recognized     1,844
Network Equipment [Member]      
Managements Use Of Accounting Judgments Estimates And Assumptions [Line Items]      
Additional depreciation recognized     34,773
Transport Network Transformation [Member]      
Managements Use Of Accounting Judgments Estimates And Assumptions [Line Items]      
Additional depreciation recognized ₱ 5,686    
Two G Technology Related Equipment      
Managements Use Of Accounting Judgments Estimates And Assumptions [Line Items]      
Additional depreciation recognized     ₱ 87
Information Technology Assets and General Computers and Peripherals [Member]      
Managements Use Of Accounting Judgments Estimates And Assumptions [Line Items]      
Depreciation that would have been increased if assets had been depreciated using original estimated useful life   ₱ 934