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Financial Assets and Liabilities - Summary of Carrying Amounts, by Maturity, of Financial Instruments that are Expected to Have Exposure on Interest Rate Risk (Detail) ₱ in Millions, $ in Millions | 12 Months Ended |  |
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Dec. 31, 2024 PHP (₱) | Dec. 31, 2023 PHP (₱) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | ₱ | ₱ 47,627 | ₱ 47,724 |  |
Total liabilities | ₱ | 473,478 | 458,341 |  |
Fair Value [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | ₱ | 1,516 | 943 |  |
Total liabilities | ₱ | 99 | 1,033 |  |
Costs [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | ₱ | 65,102 | 65,381 |  |
Interest rate risk [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | 8,076 | 14,833 | $ 139 | $ 267
Total liabilities |  | 256,927 | 4,902 | 4,635
Interest rate risk [member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | 81,315 |  | 1,406 |
Interest rate risk [member] | Debt Instruments at Amortized Cost [Member] | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | 395 | 595 | 7 | 10
Interest rate risk [member] | Cash In Bank | U.S. Dollars [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | 785 | 850 | 14 | 15
Interest rate risk [member] | Cash In Bank | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | 5,296 | 7,082 | 91 | 128
Interest rate risk [member] | Temporary Cash Investments | U.S. Dollars [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | 395 | 1,933 | 7 | 35
Interest rate risk [member] | Temporary Cash Investments | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | 1,069 | 4,251 | 18 | 77
Interest rate risk [member] | Short Term Investments1 | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | 136 | ₱ 122 | 2 | 2
Interest rate risk [member] | Total Assets Excluding Short Term Investments [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ | ₱ 283,575 |  |  |
Interest rate risk [member] | Less than 1 year [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets |  |  | 133 | 261
Total liabilities |  |  | 339 | 130
Interest rate risk [member] | Less than 1 year [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  | $ 315 | $ 72
Interest rate risk [member] | Less than 1 year [Member] | Philippine Peso [Member] | Bottom of range [member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 4.00% | 5.1021% | 4.00% | 5.1021%
Interest rate risk [member] | Less than 1 year [Member] | Philippine Peso [Member] | Top of range [member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 4.65% | 5.2813% | 4.65% | 5.2813%
Interest rate risk [member] | Less than 1 year [Member] | Debt Instruments at Amortized Cost [Member] | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets |  |  | $ 1 | $ 4
Interest rate | 4.25% |  | 4.25% |
Interest rate risk [member] | Less than 1 year [Member] | Debt Instruments at Amortized Cost [Member] | Philippine Peso [Member] | Bottom of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate |  | 2.375% |  | 2.375%
Interest rate risk [member] | Less than 1 year [Member] | Debt Instruments at Amortized Cost [Member] | Philippine Peso [Member] | Top of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate |  | 2.90% |  | 2.90%
Interest rate risk [member] | Less than 1 year [Member] | Cash In Bank | U.S. Dollars [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets |  |  | $ 14 | $ 15
Interest rate risk [member] | Less than 1 year [Member] | Cash In Bank | U.S. Dollars [Member] | Bottom of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 0.05% | 0.05% | 0.05% | 0.05%
Interest rate risk [member] | Less than 1 year [Member] | Cash In Bank | U.S. Dollars [Member] | Top of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 0.50% | 0.50% | 0.50% | 0.50%
Interest rate risk [member] | Less than 1 year [Member] | Cash In Bank | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets |  |  | $ 91 | $ 128
Interest rate risk [member] | Less than 1 year [Member] | Cash In Bank | Philippine Peso [Member] | Bottom of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 0.05% | 0.05% | 0.05% | 0.05%
Interest rate risk [member] | Less than 1 year [Member] | Cash In Bank | Philippine Peso [Member] | Top of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 5.10% | 1.50% | 5.10% | 1.50%
Interest rate risk [member] | Less than 1 year [Member] | Temporary Cash Investments | U.S. Dollars [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets |  |  | $ 7 | $ 35
Interest rate risk [member] | Less than 1 year [Member] | Temporary Cash Investments | U.S. Dollars [Member] | Bottom of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 4.50% | 4.90% | 4.50% | 4.90%
Interest rate risk [member] | Less than 1 year [Member] | Temporary Cash Investments | U.S. Dollars [Member] | Top of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 5.25% | 5.125% | 5.25% | 5.125%
Interest rate risk [member] | Less than 1 year [Member] | Temporary Cash Investments | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets |  |  | $ 18 | $ 77
Interest rate risk [member] | Less than 1 year [Member] | Temporary Cash Investments | Philippine Peso [Member] | Bottom of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 0.25% | 0.25% | 0.25% | 0.25%
Interest rate risk [member] | Less than 1 year [Member] | Temporary Cash Investments | Philippine Peso [Member] | Top of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 6.00% | 6.25% | 6.00% | 6.25%
Interest rate risk [member] | Less than 1 year [Member] | Short Term Investments1 | Bottom of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate |  | 0.50% |  | 0.50%
Interest rate risk [member] | Less than 1 year [Member] | Short Term Investments1 | Top of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate |  | 6.10% |  | 6.10%
Interest rate risk [member] | Less than 1 year [Member] | Short Term Investments1 | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets |  |  | $ 2 | $ 2
Interest rate risk [member] | Less than 1 year [Member] | Short Term Investments1 | Philippine Peso [Member] | Bottom of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 6.00% |  | 6.00% |
Interest rate risk [member] | Less than 1 year [Member] | Short Term Investments1 | Philippine Peso [Member] | Top of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 6.10% |  | 6.10% |
Interest rate risk [member] | 1-2 years [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  | $ 346 | $ 504
Interest rate risk [member] | 1-2 years [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  | $ 231 |
Interest rate risk [member] | 1-2 years [Member] | Philippine Peso [Member] | Bottom of range [member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 4.00% | 4.00% | 4.00% | 4.00%
Interest rate risk [member] | 1-2 years [Member] | Philippine Peso [Member] | Top of range [member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 5.35% | 5.35% | 5.35% | 5.35%
Interest rate risk [member] | 1-2 years [Member] | Debt Instruments at Amortized Cost [Member] | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 6.25% |  | 6.25% |
Interest rate risk [member] | 1-2 years [Member] | Debt Instruments at Amortized Cost [Member] | Philippine Peso [Member] | Bottom of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate |  | 4.25% |  | 4.25%
Interest rate risk [member] | 2-3 years [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets |  |  | $ 6 |
Total liabilities |  |  | 475 | $ 277
Interest rate risk [member] | 2-3 years [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  | $ 339 |
Interest rate risk [member] | 2-3 years [Member] | Philippine Peso [Member] | Bottom of range [member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 4.00% | 4.00% | 4.00% | 4.00%
Interest rate risk [member] | 2-3 years [Member] | Philippine Peso [Member] | Top of range [member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 5.20% | 5.35% | 5.20% | 5.35%
Interest rate risk [member] | 2-3 years [Member] | Debt Instruments at Amortized Cost [Member] | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets |  |  | $ 6 |
Interest rate |  | 6.25% |  | 6.25%
Interest rate risk [member] | 2-3 years [Member] | Debt Instruments at Amortized Cost [Member] | Philippine Peso [Member] | Bottom of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 4.625% |  | 4.625% |
Interest rate risk [member] | 2-3 years [Member] | Debt Instruments at Amortized Cost [Member] | Philippine Peso [Member] | Top of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 4.875% |  | 4.875% |
Interest rate risk [member] | 3-5 years [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets |  |  |  | $ 6
Total liabilities |  |  | $ 822 | $ 860
Interest rate risk [member] | 3-5 years [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  | $ 316 |
Interest rate risk [member] | 3-5 years [Member] | Philippine Peso [Member] | Bottom of range [member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 4.00% | 4.00% | 4.00% | 4.00%
Interest rate risk [member] | 3-5 years [Member] | Philippine Peso [Member] | Top of range [member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 5.20% | 5.20% | 5.20% | 5.20%
Interest rate risk [member] | 3-5 years [Member] | Debt Instruments at Amortized Cost [Member] | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets |  |  |  | $ 6
Interest rate | 6.50% |  | 6.50% |
Interest rate risk [member] | 3-5 years [Member] | Debt Instruments at Amortized Cost [Member] | Philippine Peso [Member] | Bottom of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate |  | 4.625% |  | 4.625%
Interest rate risk [member] | 3-5 years [Member] | Debt Instruments at Amortized Cost [Member] | Philippine Peso [Member] | Top of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate |  | 4.875% |  | 4.875%
Interest rate risk [member] | Later than five years [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  | $ 2,920 | $ 2,864
Interest rate risk [member] | Later than five years [member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  | $ 205 |
Interest rate risk [member] | Later than five years [member] | Philippine Peso [Member] | Bottom of range [member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 4.00% | 4.00% | 4.00% | 4.00%
Interest rate risk [member] | Later than five years [member] | Philippine Peso [Member] | Top of range [member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 5.088% | 5.156% | 5.088% | 5.156%
Interest rate risk [member] | Later than five years [member] | Debt Instruments at Amortized Cost [Member] | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate |  | 6.50% |  | 6.50%
Interest rate risk [member] | Floating Interest Rate [Member] | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  |  | $ 1,574
Interest rate risk [member] | Floating Interest Rate [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ |  | ₱ 87,225 |  |
Interest rate risk [member] | Floating Interest Rate [Member] | Less than 1 year [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Borrowings, interest rate basis |  | 0.5000% over PHP BVAL |  |
Interest rate risk [member] | Floating Interest Rate [Member] | 1-2 years [Member] | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  |  | 377
Interest rate risk [member] | Floating Interest Rate [Member] | 1-2 years [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Borrowings, interest rate basis |  | 0.6000% to 1.0000% over PHP BVAL (floor rate 4.5000% to 4.6250%) |  |
Interest rate risk [member] | Floating Interest Rate [Member] | 2-3 years [Member] | U.S. Dollars [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  |  | 14
Interest rate risk [member] | Floating Interest Rate [Member] | 2-3 years [Member] | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  |  | 227
Interest rate risk [member] | Floating Interest Rate [Member] | 2-3 years [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Borrowings, interest rate basis |  | 0.6000% to 1.0000% over PHP BVAL (floor rate 4.5000% to 4.6250%) |  |
Interest rate risk [member] | Floating Interest Rate [Member] | 3-5 years [Member] | U.S. Dollars [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  |  | 42
Interest rate risk [member] | Floating Interest Rate [Member] | 3-5 years [Member] | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  |  | 564
Interest rate risk [member] | Floating Interest Rate [Member] | 3-5 years [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Borrowings, interest rate basis |  | 0.6000% to 1.0000% over PHP BVAL (floor rate 4.5000% to 4.6250%) |  |
Interest rate risk [member] | Floating Interest Rate [Member] | Later than five years [member] | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  |  | 334
Interest rate risk [member] | Floating Interest Rate [Member] | Later than five years [member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Borrowings, interest rate basis |  | 0.6000% to 0.9000% over PHP BVAL (floor rate 4.5000% to 4.6250%) |  |
Interest rate risk [member] | Fair Value [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | ₱ 8,069 | ₱ 14,825 | $ 139 | 267
Total liabilities |  | 243,841 | 4,665 | 4,399
Interest rate risk [member] | Fair Value [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ | 269,912 |  |  |
Interest rate risk [member] | Fair Value [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | 75,550 |  | 1,306 |
Interest rate risk [member] | Fair Value [Member] | Debt Instruments at Amortized Cost [Member] | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | 388 | 587 | 7 | 10
Interest rate risk [member] | Fair Value [Member] | Cash In Bank | U.S. Dollars [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | 785 | 850 | 14 | 15
Interest rate risk [member] | Fair Value [Member] | Cash In Bank | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | 5,296 | 7,082 | 91 | 128
Interest rate risk [member] | Fair Value [Member] | Temporary Cash Investments | U.S. Dollars [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | 395 | 1,933 | 7 | 35
Interest rate risk [member] | Fair Value [Member] | Temporary Cash Investments | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | 1,069 | 4,251 | 18 | 77
Interest rate risk [member] | Fair Value [Member] | Short Term Investments1 | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | 136 | 122 | 2 | 2
Interest rate risk [member] | Fair Value [Member] | Floating Interest Rate [Member] | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  | 81,545 |  | 1,471
Interest rate risk [member] | Fair Value [Member] | Floating Interest Rate [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | 162,692 |  | 2,812 |
Interest rate risk [member] | U S Dollar Notes | U.S. Dollars [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ 34,708 | ₱ 33,251 | 600 | 600
Interest rate risk [member] | U S Dollar Notes | Later than five years [member] | U.S. Dollars [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  | $ 600 | $ 600
Interest rate risk [member] | U S Dollar Notes | Later than five years [member] | U.S. Dollars [Member] | Bottom of range [member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 2.50% |  | 2.50% |
Interest rate risk [member] | U S Dollar Notes | Later than five years [member] | U.S. Dollars [Member] | Bottom of range [member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate |  | 2.50% |  | 2.50%
Interest rate risk [member] | U S Dollar Notes | Later than five years [member] | U.S. Dollars [Member] | Top of range [member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Interest rate | 3.45% | 3.45% | 3.45% | 3.45%
Interest rate risk [member] | U S Dollar Notes | Fair Value [Member] | U.S. Dollars [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ 26,811 | ₱ 25,845 | $ 463 | $ 466
Interest rate risk [member] | U S Dollar Debts | Floating Interest Rate [Member] | U.S. Dollars [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | 4,860 | ₱ 6,816 | 84 | 123
Interest rate risk [member] | U S Dollar Debts | Floating Interest Rate [Member] | Less than 1 year [Member] | U.S. Dollars [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  |  | 25
Borrowings, interest rate basis |  | SOFR + 1.47826% |  |
Interest rate risk [member] | U S Dollar Debts | Floating Interest Rate [Member] | 1-2 years [Member] | U.S. Dollars [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ 28 |  |  | 28
Borrowings, interest rate basis | SOFR+ 1.31161% | SOFR + 1.31161% |  |
Interest rate risk [member] | U S Dollar Debts | Floating Interest Rate [Member] | 2-3 years [Member] | U.S. Dollars [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ | ₱ 14 |  |  |
Borrowings, interest rate basis | SOFR+ 1.31161% | SOFR + 1.31161% |  |
Interest rate risk [member] | U S Dollar Debts | Floating Interest Rate [Member] | 3-5 years [Member] | U.S. Dollars [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ | ₱ 28 |  |  |
Borrowings, interest rate basis | SOFR+ 1.31161% | SOFR + 1.31161% |  |
Interest rate risk [member] | U S Dollar Debts | Floating Interest Rate [Member] | Later than five years [member] | U.S. Dollars [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ 14 |  |  | 14
Borrowings, interest rate basis | SOFR+ 1.31161% | SOFR + 1.31161% |  |
Interest rate risk [member] | U S Dollar Debts | Fair Value [Member] | Floating Interest Rate [Member] | U.S. Dollars [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ 4,859 | ₱ 6,816 | 84 | 123
Interest rate risk [member] | Philippine Peso Debt | Floating Interest Rate [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ 162,692 | 129,635 | 2,812 | 2,338
Interest rate risk [member] | Philippine Peso Debt | Floating Interest Rate [Member] | Less than 1 year [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  | 24 | 33
Borrowings, interest rate basis | BVAL + 1.0000% |  |  |
Interest rate risk [member] | Philippine Peso Debt | Floating Interest Rate [Member] | 1-2 years [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  | 87 | 99
Borrowings, interest rate basis | 0.5000% to 1.0000% over PHP BVAL (floor rate 4.5000% to 4.6250%) |  |  |
Interest rate risk [member] | Philippine Peso Debt | Floating Interest Rate [Member] | 2-3 years [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  | 122 | 36
Borrowings, interest rate basis | 0.5000% to 1.0000% over PHP BVAL (floor rate 4.5000% to 4.6250%) |  |  |
Interest rate risk [member] | Philippine Peso Debt | Floating Interest Rate [Member] | 3-5 years [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  | 478 | 254
Borrowings, interest rate basis | 0.5000% to 0.9000% over PHP BVAL (floor rate 4.5000% to 4.6250%) |  |  |
Interest rate risk [member] | Philippine Peso Debt | Floating Interest Rate [Member] | Later than five years [member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  |  | $ 2,101 | 1,916
Borrowings, interest rate basis | 0.5000% to 0.7500% over PHP BVAL (floor rate 4.5000%) |  |  |
Interest rate risk [member] | Philippine Peso Debt | Fair Value [Member] | Floating Interest Rate [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities |  | 129,635 |  | $ 2,339
Interest rate risk [member] | Debt Issuance ​Cost [​Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ |  | 2,129 |  |
Interest rate risk [member] | Debt Issuance ​Cost [​Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ | ₱ 581 |  |  |
Interest rate risk [member] | Debt Issuance ​Cost [​Member] | Total Assets Excluding Short Term Investments [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ | 1,989 |  |  |
Interest rate risk [member] | Debt Issuance ​Cost [​Member] | Floating Interest Rate [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ |  | 748 |  |
Interest rate risk [member] | Debt Issuance ​Cost [​Member] | U S Dollar Notes | U.S. Dollars [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ | 531 | 560 |  |
Interest rate risk [member] | Debt Issuance ​Cost [​Member] | U S Dollar Debts | Floating Interest Rate [Member] | U.S. Dollars [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ | 22 | 28 |  |
Interest rate risk [member] | Debt Issuance ​Cost [​Member] | Philippine Peso Debt | Floating Interest Rate [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ | 855 | 793 |  |
Interest rate risk [member] | Costs [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | ₱ | 8,076 | 14,833 |  |
Total liabilities | ₱ | 281,586 | 254,798 |  |
Interest rate risk [member] | Costs [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ | 80,734 |  |  |
Interest rate risk [member] | Costs [Member] | Debt Instruments at Amortized Cost [Member] | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | ₱ | 395 | 595 |  |
Interest rate risk [member] | Costs [Member] | Cash In Bank | U.S. Dollars [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | ₱ | 785 | 850 |  |
Interest rate risk [member] | Costs [Member] | Cash In Bank | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | ₱ | 5,296 | 7,082 |  |
Interest rate risk [member] | Costs [Member] | Temporary Cash Investments | U.S. Dollars [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | ₱ | 395 | 1,933 |  |
Interest rate risk [member] | Costs [Member] | Temporary Cash Investments | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | ₱ | 1,069 | 4,251 |  |
Interest rate risk [member] | Costs [Member] | Short Term Investments1 | Philippine Peso [Member] |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total assets | ₱ | 136 | 122 |  |
Interest rate risk [member] | Costs [Member] | Floating Interest Rate [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ |  | 86,477 |  |
Interest rate risk [member] | Costs [Member] | U S Dollar Notes | U.S. Dollars [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ | 34,177 | 32,691 |  |
Interest rate risk [member] | Costs [Member] | U S Dollar Debts | Floating Interest Rate [Member] | U.S. Dollars [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ | 4,838 | 6,788 |  |
Interest rate risk [member] | Costs [Member] | Philippine Peso Debt | Floating Interest Rate [Member] | Philippine Peso [Member] | Long Term Debt1 |  |  |  |
Disclosure Of Risk Management Strategy Related To Hedge Accounting [Line Items] |  |  |  |
Total liabilities | ₱ | ₱ 161,837 | ₱ 128,842 |  |

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