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Income and Expenses - Summary of Changes in Contract Liabilities and Unearned Revenues Accounts (Detail) - PHP (₱) ₱ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Contract liabilities [abstract] |  |  |
Balances at beginning of the years | ₱ 13,621 | ₱ 9,571 | ₱ 8,483
Deferred during the year | 123,218 | 138,346 | 127,160
Recognized as revenue during the year | (119,725) | (134,296) | (126,072)
Balances at end of the years | ₱ 17,114 | ₱ 13,621 | ₱ 9,571

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- References No definition available. + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Contract liabilities and unearned revenues. + References No definition available. + Details
Name: | phi_ContractLiabilitiesAndUnearnedRevenues
Namespace Prefix: | phi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Contract liability revenue as recognized. + References No definition available. + Details
Name: | phi_ContractLiabilityRevenueAsRecognized
Namespace Prefix: | phi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Deferred contract liabilities. + References No definition available. + Details
Name: | phi_DeferredContractLiabilities
Namespace Prefix: | phi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration