Interest-bearing Financial Liabilities - Summary of Interest-bearing Financial Liabilities (Detail) - PHP (₱) ₱ in Millions	Dec. 31, 2018	Dec. 31, 2017
Long-term portion of interest-bearing financial liabilities:
Long-term debt (Notes 9 and 27)	₱ 155,835	₱ 157,654
Current portion of interest-bearing financial liabilities:
Long-term debt maturing within one year (Notes 9 and 27)	₱ 20,441	₱ 14,957

The current portion of non-current borrowings. [Refer: Borrowings]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard
-URIDate 2018-03-16

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant