v3.26.1
Pension and Other Employee Benefits - Additional Information (Detail) - PHP (₱)
₱ / shares in Units, shares in Millions
 1 Months Ended 12 Months Ended
May 30, 2015
Jan. 25, 2013
May 08, 2012
Feb. 28, 2018
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Apr. 30, 2024
Oct. 26, 2012
Disclosure Of Defined Benefit Plans [Line Items]                  
Actual gain on plan assets         ₱ 224,000,000 ₱ 918,000,000 ₱ 3,766,000,000    
Expected contribution in 2026 to the defined benefit plan         ₱ 4,665,000,000        
Average duration of the defined benefit obligation         12 years 8 months 12 days        
VIU calculations derived from cash flow projections         The VIU calculations were derived from cash flow projections over a period of five years based on the 2026 financial budgets approved by MediaQuest’s Board of Directors and calculated terminal value        
Percentage of Economic Interest 70.00%     100.00%          
Carrying value of investments in associates       ₱ 1,664,000,000 ₱ 19,151,000,000 18,981,000,000      
Direct Subscription In Shares Of Stocks         20,000,000        
Unpaid Subscription in Unlisted Equity Investments         32,000,000        
Cumulative Change In Fair Market Value Of Investment         654,000,000 ₱ 603,000,000      
Mutual fund investment         ₱ 306,000,000        
Debt and fixed income securities         2.00% 2.00%      
Change in fair value of plan assets         ₱ 0 ₱ 0      
Defined Contribution Plans [Member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Average duration of the defined benefit obligation         10 years        
Fixed Income Securities [Member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Proportion of portfolio percentage         68.00%        
Equity Securities 1 [Member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Proportion of portfolio percentage         32.00%        
Smart and Subsidiaries [Member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Actual gain on plan assets         ₱ 302,000,000 318,000,000 (257,000,000)    
Expected contribution in 2026 to the defined benefit plan         309,000,000        
Smart and Subsidiaries [Member] | PLDT Shares [Member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Plan Assets of Defined Benefit Pension Plans         ₱ 72,000,000 ₱ 38,000,000      
Unlisted Preferred Shares [member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Subscription price per share         ₱ 10 ₱ 10      
Unlisted preferred shares         300 300      
Subscription payable         ₱ 2,640,000,000 ₱ 2,640,000,000      
Dividend rate         13.50% 13.50%      
Dividends earned         ₱ 49,000,000 ₱ 49,000,000 49,000,000    
Corporate Bonds [member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Loans receivable aggregate amount         103,000,000        
MediaQuest PDRs [Member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Percentage of Economic Interest     40.00%            
Carrying value of investments in associates         ₱ 8,706,000,000 ₱ 9,186,000,000      
Satventures Philippine Depositary Receipts [Member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Percentage of Economic Interest   40.00%              
Carrying value of investments in associates   ₱ 3,600,000,000              
Cignal TV Philippine Depositary Receipts [Member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Percentage of Economic Interest     40.00%   36.00% 100.00%      
Carrying value of investments in associates     ₱ 6,000,000,000            
Hastings Philippine Depositary Receipts [Member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Percentage of Economic Interest 70.00%       36.00% 100.00%      
Carrying value of investments in associates ₱ 3,250,000,000                
Tahanan Mutual Building and Loan Association, Inc [member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Carrying value of investments in associates         ₱ 119,000,000        
Deed of pledge         99,000,000        
BTF Holdings, Inc. [Member] | Voting Preferred Stock [Member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Voting Preferred Stock                 ₱ 150,000,000
Subscription price per share                 ₱ 1
Total Subscription Price               ₱ 2,480,000,000 ₱ 150,000,000
Dividend income         10,000,000 ₱ 10,000,000 10,000,000    
Dividends received         2,000,000 2,000,000      
Parent [Member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Shares of stocks sold to third party         3,000,000 ₱ 3,000,000 ₱ 3,000,000    
First Pacific [Member] | Corporate Bonds [member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Investment in corporate bonds         140,000,000        
International Container Terminal Services, Inc. [Member] | Corporate Bonds [member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Investment in corporate bonds         ₱ 74,000,000        
Bottom of range [member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Pre-tax discount rates applied to cash flow projections         11.15%        
Growth rate of cash flows beyond the projection of three years         0.00%        
Percentage of contribution to plan by employer         5.00%        
Debt and fixed income securities         10.00%        
Bottom of range [member] | Smart and Subsidiaries [Member] | Philippine Foreign Currency Bonds [Member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Percentage of interest earned         2.38%        
Bottom of range [member] | Smart and Subsidiaries [Member] | Debt and Fixed Income Securities [Member] | Domestic Fixed Income [Member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Percentage of interest earned         3.36%        
Bottom of range [member] | Corporate Bonds [member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Fixed interest rates         3.36%        
Bottom of range [member] | Debt Securities [Member] | Retail Treasury Bonds and FXTN [Member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Fixed interest rates         3.90%        
Top of range [member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Pre-tax discount rates applied to cash flow projections         11.36%        
Growth rate of cash flows beyond the projection of three years         4.89%        
Percentage of contribution to plan by employer         10.00%        
Percentage of contribution to plan by employee         10.00%        
Debt and fixed income securities         50.00%        
Top of range [member] | Smart and Subsidiaries [Member] | Philippine Foreign Currency Bonds [Member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Percentage of interest earned         9.50%        
Top of range [member] | Smart and Subsidiaries [Member] | Debt and Fixed Income Securities [Member] | Domestic Fixed Income [Member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Percentage of interest earned         10.25%        
Top of range [member] | Corporate Bonds [member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Fixed interest rates         7.53%        
Top of range [member] | Debt Securities [Member] | Retail Treasury Bonds and FXTN [Member]                  
Disclosure Of Defined Benefit Plans [Line Items]                  
Fixed interest rates         4.80%