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Investment Properties - Summary of Changes in Investment Properties (Detail) - PHP (₱)
₱ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Disclosure Of Investment Property [Line Items]    
Balances at beginning of the year ₱ 1,315 ₱ 1,015
Net gains (losses)from fair value adjustments charged to profit or loss 23 30
Transfers from property and equipment - net 1,676 367
Disposals during the year (14) (97)
Balances at end of the year 3,000 1,315
Land [Member]    
Disclosure Of Investment Property [Line Items]    
Balances at beginning of the year 1,184 858
Net gains (losses)from fair value adjustments charged to profit or loss 17 58
Transfers from property and equipment - net 1,695 363
Disposals during the year (14) (95)
Balances at end of the year 2,882 1,184
Land Improvements [Member]    
Disclosure Of Investment Property [Line Items]    
Balances at beginning of the year 12 2
Net gains (losses)from fair value adjustments charged to profit or loss 0 8
Transfers from property and equipment - net   2
Balances at end of the year 12 12
Building [Member]    
Disclosure Of Investment Property [Line Items]    
Balances at beginning of the year 119 155
Net gains (losses)from fair value adjustments charged to profit or loss 6 (36)
Transfers from property and equipment - net (19) 2
Disposals during the year   (2)
Balances at end of the year ₱ 106 ₱ 119