v3.26.1
Financial Assets and Liabilities - Summary of Maximum Exposure to Credit Risk (Detail) - PHP (₱)
₱ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure ₱ 49,008 ₱ 47,200
Collateral and Other Credit Enhancements* 410 427
Costs [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 49,418 47,627
Financial assets at amortised cost, category [member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 47,158 45,684
Collateral and Other Credit Enhancements* 410 427
Financial assets at amortised cost, category [member] | Costs [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 47,568 46,111
Financial assets at amortised cost, category [member] | Debt Instruments at Amortized Cost [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 370 395
Financial assets at amortised cost, category [member] | Debt Instruments at Amortized Cost [Member] | Costs [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 370 395
Financial assets at amortised cost, category [member] | Other Financial Assets [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 3,953 3,957
Collateral and Other Credit Enhancements* 2  
Financial assets at amortised cost, category [member] | Other Financial Assets [Member] | Costs [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 3,955 3,957
Financial assets at amortised cost, category [member] | Cash and Cash Equivalent [member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 11,737 9,967
Collateral and Other Credit Enhancements* 129 44
Financial assets at amortised cost, category [member] | Cash and Cash Equivalent [member] | Costs [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 11,866 10,011
Financial assets at amortised cost, category [member] | Short Term Investments1    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 10  
Financial assets at amortised cost, category [member] | Short Term Investments1 | Costs [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 10  
Financial assets at amortised cost, category [member] | Corporate subscribers [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 14,444 14,677
Collateral and Other Credit Enhancements* 240 346
Financial assets at amortised cost, category [member] | Corporate subscribers [Member] | Costs [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 14,684 15,023
Financial assets at amortised cost, category [member] | Retail subscribers [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 8,078 7,613
Collateral and Other Credit Enhancements* 39 37
Financial assets at amortised cost, category [member] | Retail subscribers [Member] | Costs [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 8,117 7,650
Financial assets at amortised cost, category [member] | Foreign administrations [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 1,531 1,177
Financial assets at amortised cost, category [member] | Foreign administrations [Member] | Costs [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 1,531 1,177
Financial assets at amortised cost, category [member] | Domestic carriers [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 208 256
Financial assets at amortised cost, category [member] | Domestic carriers [Member] | Costs [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 208 256
Financial assets at amortised cost, category [member] | Dealers agents and others [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 6,827 7,506
Financial assets at amortised cost, category [member] | Dealers agents and others [Member] | Costs [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 6,827 7,506
financial assets at FVPL [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 1,233 1,131
financial assets at FVPL [Member] | Costs [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 1,233 1,131
financial assets at FVPL [Member] | Short Term Investments1    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure   136
financial assets at FVPL [Member] | Short Term Investments1 | Costs [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure   136
financial assets at FVPL [Member] | Forward Foreign Exchange Contracts [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 203 30
financial assets at FVPL [Member] | Forward Foreign Exchange Contracts [Member] | Costs [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 203 30
financial assets at FVPL [Member] | Financial Assets at FVPL    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 1,030 1,101
financial assets at FVPL [Member] | Financial Assets at FVPL | Costs [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 1,030 1,101
Derivatives used for hedging [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 617 385
Derivatives used for hedging [Member] | Costs [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 617 385
Derivatives used for hedging [Member] | Long Term Foreign Currency Options    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure 617 385
Derivatives used for hedging [Member] | Long Term Foreign Currency Options | Costs [Member]    
Disclosure Of Credit Risk Exposure [Line Items]    
Maximum Exposure ₱ 617 ₱ 385