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Investments in Associates and Joint Ventures - Summarized Financial Information of PG1 (Detail) - PHP (₱)
₱ in Millions
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Statements of Financial Position:        
Noncurrent assets ₱ 542,833 ₱ 552,397    
Current assets 81,329 73,931    
Noncurrent liabilities (263,199) (274,589)    
Current liabilities (247,002) (224,274)    
Deficit (113,961) ₱ (127,465) ₱ (119,665) ₱ (116,290)
PG1 [Member]        
Statements of Financial Position:        
Noncurrent assets 3,283      
Current assets 123      
Noncurrent liabilities (3,146)      
Current liabilities (847)      
Deficit ₱ (587)