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Inventories and Supplies - Summary of Cost of Inventories and Supplies Recognized as Expense (Detail) - PHP (₱) ₱ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Classes of current inventories [abstract] |  |  |
Cost of sales | ₱ 11,287 | ₱ 7,375 | ₱ 8,882
Repairs and maintenance | 986 | 850 | 613
Inventories and supplies (Note 18) | 414 | 847 | 934
Selling and promotions | 4 | 9 | 3
Inventories and supplies recognized as expense | ₱ 12,691 | ₱ 9,081 | ₱ 10,432

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- Definition The amount of inventories recognised as an expense during the period. [Refer: Inventories] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 2 -IssueDate 2022-03-24 -Paragraph 36 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=2&code=ifrs-tx-2022-en-r&anchor=para_36_d&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of expense recognised related to the write-down of inventories to net realisable value. [Refer: Inventories] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 2 -IssueDate 2022-03-24 -Paragraph 36 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=2&code=ifrs-tx-2022-en-r&anchor=para_36_e&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 98 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_98_a&doctype=Standard -URIDate 2022-03-24 + Details
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