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Investments in Associates and Joint Ventures - Carrying Value of Investments in Associates (Parenthetical) (Detail) - PHP (₱) ₱ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Multisys [Member] |  |
Disclosure of Investments in Associates and Joint Ventures [Line Items] |  |
Subscription payable | ₱ 620 | ₱ 800

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- Definition Disclosure of investments in associates and joint ventures. + References No definition available. + Details
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Namespace Prefix: | phi_
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Balance Type: | na
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- Definition Subscription payable. + References No definition available. + Details
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Namespace Prefix: | phi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |