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Deferred Credits and Other Noncurrent Liabilities - Summary of Deferred Credits and Other Noncurrent Liabilities (Detail) - PHP (₱)
₱ in Millions
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Subclassifications Of Assets Liabilities And Equities [Abstract]      
Accrual of capital expenditures under long-term financing ₱ 2,118 ₱ 2,965  
Total provision for asset retirement obligations 1,767 1,656 ₱ 1,630
Noncurrent portion of contract liabilities and unearned revenues 604 532  
Others 68 131  
Deferred credits and non other liabilities ₱ 4,557 ₱ 5,284