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Pension and Other Employee Benefits - Summary of Unlisted Equity Investments of Defined Benefit Pension Plans (Detail) - PHP (₱)
₱ in Millions
Dec. 31, 2024
Dec. 31, 2023
Disclosure Of Fair Value Of Plan Assets [Line Items]    
Unlisted Equity Investments ₱ 52,764 ₱ 50,308
MediaQuest PDRs [Member]    
Disclosure Of Fair Value Of Plan Assets [Line Items]    
% of Ownership 100.00% 100.00%
Unlisted Equity Investments ₱ 7,304 ₱ 8,507
Tahanan Mutual Building and Loan Association, Inc [member]    
Disclosure Of Fair Value Of Plan Assets [Line Items]    
% of Ownership 100.00% 100.00%
Unlisted Equity Investments ₱ 722 ₱ 672
BTF Holdings, Inc. [Member]    
Disclosure Of Fair Value Of Plan Assets [Line Items]    
% of Ownership 100.00% 100.00%
Unlisted Equity Investments ₱ 2,748 ₱ 260
Unquoted Equity Investments [Member]    
Disclosure Of Fair Value Of Plan Assets [Line Items]    
Unlisted Equity Investments ₱ 10,774 ₱ 9,439