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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, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disclosure Of Detailed Information About Borrowings [Abstract] |  |  |
Unamortized debt discount at beginning of the year | ₱ 525 | ₱ 631 |
Additions during the year | 38 | 113 |
Accretion during the year included as part of Financing costs (Note 5) | (145) | (219) | ₱ (230)
Unamortized debt discount at end of the year | ₱ 418 | ₱ 525 | ₱ 631

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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 Unamortized debt discount. + References No definition available. + Details
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