v3.26.1
Financial Assets and Liabilities - Summary of Derivative Financial Instruments (Parenthetical) (Detail)
12 Months Ended
Dec. 31, 2025
PHP (₱)
USD ($)
Dec. 31, 2024
PHP (₱)
Dec. 31, 2023
PHP (₱)
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 1    
Net Mark-to- market Gains (Losses) ₱ 743,000,000 ₱ 318,000,000  
Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Net Mark-to- market Gains (Losses) 203,000,000 10,000,000  
Transactions Designated As Hedges      
Disclosure of detailed information about financial instruments [Line Items]      
Net Mark-to- market Gains (Losses) 540,000,000 308,000,000  
PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Net Mark-to- market Gains (Losses) 146,000,000 (15,000,000)  
PLDT [Member] | Transactions Designated As Hedges      
Disclosure of detailed information about financial instruments [Line Items]      
Net Mark-to- market Gains (Losses) 377,000,000 164,000,000  
Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Net Mark-to- market Gains (Losses) 57,000,000 25,000,000  
Smart [Member] | Transactions Designated As Hedges      
Disclosure of detailed information about financial instruments [Line Items]      
Net Mark-to- market Gains (Losses) 163,000,000 144,000,000  
Long Term Foreign Currency Options | PLDT [Member] | Transactions Designated As Hedges      
Disclosure of detailed information about financial instruments [Line Items]      
Mark-to-market loss/gain 452,000,000 239,000,000  
Interest accrual 75,000,000 75,000,000  
Hedge cost portion of the movements in the fair value 129,000,000 119,000,000 ₱ 39,000,000
Gain (loss) on hedge ineffectiveness recognised in other comprehensive income 164,000,000 209,000,000  
Long Term Foreign Currency Options | Smart [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Mark-to-market loss/gain 165,000,000 146,000,000  
Interest accrual 2,000,000 2,000,000  
Long Term Foreign Currency Options | Smart [Member] | Transactions Designated As Hedges      
Disclosure of detailed information about financial instruments [Line Items]      
Hedge cost portion of the movements in the fair value 43,000,000 52,000,000  
Gain (loss) on hedge ineffectiveness recognised in other comprehensive income ₱ 59,000,000 ₱ 110,000,000  
Termination Date Various Dates in April 2025 to May 2026 [Member] | US Dollar Liabilities [Member] | Various Dates in January to December 2025 [Member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 57.71    
Net Mark-to- market Gains (Losses) ₱ 27,000,000    
Condition One | Long Term Foreign Currency Options | Smart [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 48    
Condition One | Bottom of range [member] | Long Term Foreign Currency Options | Smart [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 48    
Condition One | Top of range [member] | Long Term Foreign Currency Options | Smart [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 53.34    
Condition One | Termination Date Various dates in September to December 2024 [Member] | US Dollar Liabilities [Member] | Various dates in March to September 2024 [Member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 56.84    
Condition One | Termination Date Various dates in September to December 2024 [Member] | US Dollar Liabilities [Member] | Various dates in March to September 2024 [Member] | Bottom of range [member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 56.84    
Condition One | Termination Date Various dates in September to December 2024 [Member] | US Dollar Liabilities [Member] | Various dates in March to September 2024 [Member] | Top of range [member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 57.76    
Condition One | Termination Date Various dates in April 2025 [Member] | US Dollar Liabilities [Member] | Various dates in September to December 2024 [Member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 57.59    
Condition One | Termination Date Various dates in April 2025 [Member] | US Dollar Liabilities [Member] | Various dates in September to December 2024 [Member] | Bottom of range [member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 57.59    
Condition One | Termination Date Various dates in April 2025 [Member] | US Dollar Liabilities [Member] | Various dates in September to December 2024 [Member] | Top of range [member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 58.32    
Condition One | Termination Date Various dates in April 2025 to April 2026 [Member] | US Dollar Liabilities [Member] | Various dates in January to December 2025 [Member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 56.99    
Condition One | Termination Date Various dates in April 2025 to April 2026 [Member] | US Dollar Liabilities [Member] | Various dates in January to December 2025 [Member] | Bottom of range [member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 56.99    
Condition One | Termination Date Various dates in April 2025 to April 2026 [Member] | US Dollar Liabilities [Member] | Various dates in January to December 2025 [Member] | Top of range [member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 58.74    
Condition One | Termination Date Various Dates in 2024 [Member] | US Dollar Liabilities [Member] | Various Dates in 2023 and 2024 [Member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Exchange rate, description 56.00    
Condition One | Termination Date Various Dates in 2024 [Member] | US Dollar Liabilities [Member] | Various Dates in 2023 and 2024 [Member] | Bottom of range [member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 56    
Condition One | Termination Date Various Dates in 2024 [Member] | US Dollar Liabilities [Member] | Various Dates in 2023 and 2024 [Member] | Top of range [member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 57    
Condition One | Termination Date January 23, 2031 [Member] | Various dates in July 2020 and February to March 2021 [Member] | Long Term Foreign Currency Options | PLDT [Member] | Transactions Designated As Hedges      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 49.58    
Foreign exchange rate subsidy 5.69    
Condition One | Termination Date January 23, 2031 [Member] | Various dates in July 2020 and February to March 2021 [Member] | Bottom of range [member] | Long Term Foreign Currency Options | PLDT [Member] | Transactions Designated As Hedges      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 49.58    
Condition One | Termination Date January 23, 2031 [Member] | Various dates in July 2020 and February to March 2021 [Member] | Top of range [member] | Long Term Foreign Currency Options | PLDT [Member] | Transactions Designated As Hedges      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 55.27    
Condition One | Termination Date January 23, 2031 [Member] | Various Dates in July 2020 and July 2025 [Member] | Long Term Foreign Currency Options | PLDT [Member] | Transactions Designated As Hedges      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 49.67    
Condition One | Termination Date Various dates in January to April 2025 [Member] | US Dollar Liabilities [Member] | Various dates in September to December 2024 [Member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 57.41    
Condition One | Termination Date Various dates in January to April 2025 [Member] | US Dollar Liabilities [Member] | Various dates in September to December 2024 [Member] | Bottom of range [member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 57.41    
Condition One | Termination Date Various dates in January to April 2025 [Member] | US Dollar Liabilities [Member] | Various dates in September to December 2024 [Member] | Top of range [member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 58.63    
Condition One | Termination Date Various Dates in April 2025 to May 2026 [Member] | US Dollar Liabilities [Member] | Various Dates in January to December 2025 [Member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 58.03    
Condition One | Termination Date Various Dates in April 2025 to May 2026 [Member] | US Dollar Liabilities [Member] | Various Dates in January to December 2025 [Member] | Bottom of range [member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 58.03    
Condition One | Termination Date Various Dates in April 2025 to May 2026 [Member] | US Dollar Liabilities [Member] | Various Dates in January to December 2025 [Member] | Top of range [member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 59.55    
Condition Two | Long Term Foreign Currency Options | Smart [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 48    
Exchange rate, description Php48.00 plus the excess above Php53.34    
Condition Two | Bottom of range [member] | Long Term Foreign Currency Options | Smart [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 53.34    
Condition Two | Termination Date Various dates in September to December 2024 [Member] | US Dollar Liabilities [Member] | Various dates in March to September 2024 [Member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Exchange rate, description Php56.84 plus the excess above Php57.76    
Condition Two | Termination Date Various dates in September to December 2024 [Member] | US Dollar Liabilities [Member] | Various dates in March to September 2024 [Member] | Bottom of range [member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 57.76    
Condition Two | Termination Date Various dates in September to December 2024 [Member] | US Dollar Liabilities [Member] | Various dates in October to November 2024 [Member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Exchange rate, description Php57.59 plus the excess above Php58.32    
Condition Two | Termination Date Various dates in April 2025 [Member] | US Dollar Liabilities [Member] | Various dates in September to December 2024 [Member] | Bottom of range [member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 58.32    
Condition Two | Termination Date Various dates in April 2025 to April 2026 [Member] | US Dollar Liabilities [Member] | Various dates in January to December 2025 [Member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Exchange rate, description Php56.99 plus the excess above Php58.74    
Condition Two | Termination Date Various dates in April 2025 to April 2026 [Member] | US Dollar Liabilities [Member] | Various dates in January to December 2025 [Member] | Bottom of range [member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 58.74    
Condition Two | Termination Date Various Dates in 2024 [Member] | US Dollar Liabilities [Member] | Various Dates in 2023 and 2024 [Member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 55.6    
Exchange rate, description Php56.00 plus the excess above Php57.00    
Condition Two | Termination Date Various Dates in 2024 [Member] | US Dollar Liabilities [Member] | Various Dates in 2023 and 2024 [Member] | Bottom of range [member] | Foreign Exchange Options Seagull | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 56    
Condition Two | Termination Date Various Dates in 2024 [Member] | US Dollar Liabilities [Member] | Various Dates in 2023 and 2024 [Member] | Bottom of range [member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 57    
Condition Two | Termination Date January 23, 2031 [Member] | Various dates in July 2020 and February to March 2021 [Member] | Long Term Foreign Currency Options | PLDT [Member] | Transactions Designated As Hedges      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 49.67    
Foreign exchange rate subsidy 5.68    
Condition Two | Termination Date January 23, 2031 [Member] | Various dates in July 2020 and February to March 2021 [Member] | Bottom of range [member] | Long Term Foreign Currency Options | PLDT [Member] | Transactions Designated As Hedges      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 55.35    
Condition Two | Termination Date January 23, 2031 [Member] | Various Dates in July 2020 and July 2025 [Member] | Bottom of range [member] | Long Term Foreign Currency Options | PLDT [Member] | Transactions Designated As Hedges      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 49.67    
Condition Two | Termination Date January 23, 2031 [Member] | Various Dates in July 2020 and July 2025 [Member] | Top of range [member] | Long Term Foreign Currency Options | PLDT [Member] | Transactions Designated As Hedges      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 55.35    
Condition Two | Termination Date Various dates in January to April 2025 [Member] | US Dollar Liabilities [Member] | Various dates in September to December 2024 [Member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Exchange rate, description Php57.41 plus the excess above Php58.63    
Condition Two | Termination Date Various dates in January to April 2025 [Member] | US Dollar Liabilities [Member] | Various dates in September to December 2024 [Member] | Bottom of range [member] | Foreign Exchange Options Seagull | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 57.41    
Condition Two | Termination Date Various dates in January to April 2025 [Member] | US Dollar Liabilities [Member] | Various dates in September to December 2024 [Member] | Bottom of range [member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 58.63    
Condition Two | Termination Date Various Dates in April 2025 to May 2026 [Member] | US Dollar Liabilities [Member] | Various Dates in January to December 2025 [Member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 59.55    
Exchange rate, description Php58.03 plus the excess above Php59.55    
Condition Two | Termination Date Various Dates in April 2025 to May 2026 [Member] | US Dollar Liabilities [Member] | Various Dates in January to December 2025 [Member] | Bottom of range [member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 59.55    
Condition Three | Termination Date Various dates in September to December 2024 [Member] | US Dollar Liabilities [Member] | Various dates in March to September 2024 [Member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 56.4    
Condition Three | Termination Date Various dates in September to December 2024 [Member] | US Dollar Liabilities [Member] | Various dates in March to September 2024 [Member] | Top of range [member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 56.84    
Condition Three | Termination Date Various dates in April 2025 [Member] | US Dollar Liabilities [Member] | Various dates in September to December 2024 [Member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 57    
Condition Three | Termination Date Various dates in April 2025 [Member] | US Dollar Liabilities [Member] | Various dates in September to December 2024 [Member] | Top of range [member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 57.59    
Condition Three | Termination Date Various dates in April 2025 to April 2026 [Member] | US Dollar Liabilities [Member] | Various dates in January to December 2025 [Member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 56.71    
Condition Three | Termination Date Various dates in April 2025 to April 2026 [Member] | US Dollar Liabilities [Member] | Various dates in January to December 2025 [Member] | Top of range [member] | Foreign Exchange Options Seagull | PLDT [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 56.99    
Condition Three | Termination Date Various Dates in 2024 [Member] | US Dollar Liabilities [Member] | Various Dates in 2023 and 2024 [Member] | Top of range [member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 56    
Condition Three | Termination Date January 23, 2031 [Member] | Various dates in July 2020 and February to March 2021 [Member] | Top of range [member] | Long Term Foreign Currency Options | PLDT [Member] | Transactions Designated As Hedges      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 49.67    
Condition Three | Termination Date Various dates in January to April 2025 [Member] | US Dollar Liabilities [Member] | Various dates in September to December 2024 [Member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 57.01    
Condition Three | Termination Date Various Dates in April 2025 to May 2026 [Member] | US Dollar Liabilities [Member] | Various Dates in January to December 2025 [Member] | Foreign Exchange Options Seagull | Smart [Member] | Transactions Not Designated As Hedges [Member]      
Disclosure of detailed information about financial instruments [Line Items]      
Weighted Average Foreign Exchange Rate 57.71