Employee Benefits - Summary of Unlisted Equity Investments of Defined Benefit Pension Plans (Parenthetical) (Detail) - PHP (₱) ₱ in Millions	Dec. 31, 2017	Dec. 31, 2016
Tahanan Mutual Building and Loan Association Inc [member]
Disclosure Of Fair Value Of Plan Assets [Line Items]
Net subscriptions payable	₱ 32	₱ 32

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

No definition available.

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