v3.26.1
Equity - Summary of Number of Shares of Subscribed and Outstanding Capital Stock (Detail) - shares
shares in Millions
Dec. 31, 2025
Dec. 31, 2024
Jun. 15, 2013
Jun. 14, 2013
Jun. 05, 2012
Disclosure Of Classes Of Share Capital [Line Items]          
Subscribed 1,093.0 1,093.0      
Outstanding 1,093.0 1,093.0      
Non-voting Serial Preferred Stock [Member]          
Disclosure Of Classes Of Share Capital [Line Items]          
Authorized 388.0 388.0 388.0 807.5 807.5
Subscribed [1] 300.0 300.0      
Outstanding [1] 300.0 300.0      
Voting Preferred Stock [Member]          
Disclosure Of Classes Of Share Capital [Line Items]          
Authorized 150.0 150.0     150.0
Subscribed 150.0 150.0      
Outstanding 150.0 150.0      
Common Stock [Member]          
Disclosure Of Classes Of Share Capital [Line Items]          
Authorized 234.0 234.0      
Subscribed 219.0 219.0      
Outstanding 216.0 216.0      
Treasury Stock [Member]          
Disclosure Of Classes Of Share Capital [Line Items]          
Outstanding 3.0 3.0      
[1] 300 million shares of Series IV Cumulative Non-Convertible Redeemable Preferred Stock subscribed for Php3 billion, of which Php360 million has
been paid and with subscription payable amounting to Php2,640 million as at December 31, 2025 and 2024.