v3.26.1
Investments in Associates and Joint Ventures - Summary of Sale of PCEV Shares to MIH (Detail) - PLDT Communications and Energy Ventures, Inc. [Member]
₱ in Millions, shares in Millions, $ in Millions
 12 Months Ended
Apr. 05, 2024
USD ($)
shares
Apr. 05, 2024
PHP (₱)
shares
Dec. 13, 2023
PHP (₱)
shares
Apr. 07, 2022
PHP (₱)
shares
Jun. 11, 2021
PHP (₱)
shares
Mar. 12, 2021
PHP (₱)
shares
Dec. 31, 2020
PHP (₱)
shares
Mar. 14, 2018
PHP (₱)
shares
Dec. 31, 2025
Dec. 31, 2024
Disclosure Of Joint Ventures [Line Items]                    
Equity interest                 37.66% 37.66%
Common Stock [Member]                    
Disclosure Of Joint Ventures [Line Items]                    
Number of Shares Sold               53.4    
Total consideration | ₱               ₱ 465    
Equity interest               100.00%    
Subscription of Ordinary Shares [Member]                    
Disclosure Of Joint Ventures [Line Items]                    
Number of Shares Sold               95.9    
Total consideration | ₱               ₱ 3,806    
Equity interest               100.00%    
Class A2 Preference Shares [Member]                    
Disclosure Of Joint Ventures [Line Items]                    
Number of Shares Sold           6.7 7.9      
Total consideration | ₱           ₱ 447 ₱ 544      
Equity interest           41.87% 43.97%      
Class B Convertible Preferred Shares [Member]                    
Disclosure Of Joint Ventures [Line Items]                    
Number of Shares Sold         15.6          
Total consideration | ₱         ₱ 1,218          
Equity interest         38.45%          
Class C Convertible Preferred Shares [Member]                    
Disclosure Of Joint Ventures [Line Items]                    
Number of Shares Sold       27.2            
Total consideration | ₱       ₱ 3,252            
Equity interest       36.82%            
Class C2 Convertible Preference Shares [Member]                    
Disclosure Of Joint Ventures [Line Items]                    
Number of Shares Sold 6.7 6.7 12.3              
Total consideration $ 15.3 ₱ 857 ₱ 1,563              
Equity interest 37.66% 37.66% 36.97%