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Financial Assets And Liabilities - Summary of Effect of the Cash Flow Hedge in Consolidated Income Statements and Statements of Other Comprehensive Income (Detail) - Cash Flow Hedges [Member] - PHP (₱) ₱ in Millions | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Foreign currency exchange risk [Member] |  |
Disclosure Of Hedge Accounting [Line Items] |  |
Total hedging loss recognized in OCI | ₱ (234) |
Line item in the Consolidated Income Statements | Other comprehensive loss |
Foreign currency exchange risk [Member] | Long Term Currency Swaps [Member] |  |
Disclosure Of Hedge Accounting [Line Items] |  |
Total hedging loss recognized in OCI |  | ₱ (46)
Line item in the Consolidated Income Statements |  | Other comprehensive loss
Interest rate risk [member] | Interest Rate Swap1 |  |
Disclosure Of Hedge Accounting [Line Items] |  |
Total hedging loss recognized in OCI | ₱ 179 | ₱ 169
Line item in the Consolidated Income Statements | Other comprehensive loss | Other comprehensive loss

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- Definition The description of the line item in the statement of comprehensive income that includes the recognised hedge ineffectiveness. [Refer: Gain (loss) on hedge ineffectiveness] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 24C -Subparagraph a -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_24C_a_ii&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 24C -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_24C_b_iii&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The gain (loss) recognised in other comprehensive income on hedge ineffectiveness. [Refer: Gain (loss) on hedge ineffectiveness] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 24C -Subparagraph a -Clause i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_24C_a_i&doctype=Standard -URIDate 2018-03-16 + Details
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- Details
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