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Interest-bearing Financial Liabilities - Summary of Changes to Unamortized Debt Discount (Detail) - PHP (₱) ₱ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure Of Detailed Information About Borrowings [Abstract] |  |  |
Unamortized debt discount at beginning of the year | ₱ 491 | ₱ 418 |
Additions during the year | 927 | 195 |
Revaluations during the year | (10) |  |
Accretion during the year included as part of financing costs – net (Note 5) | (146) | (122) | ₱ (145)
Unamortized debt discount at end of the year | ₱ 1,262 | ₱ 491 | ₱ 418

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- References No definition available. + Details
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- Definition Additions to unamortized debt discount. + References No definition available. + Details
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- Definition Revaluations to unamortized debt discount. + References No definition available. + Details
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