Reporting Entity - Summary of Consolidated Subsidiaries (Parenthetical) (Detail) ₩ in Millions	12 Months Ended
Dec. 31, 2023 KRW (₩)
LG DISPLAY FUND I LLC [member]
Disclosure of subsidiaries [line items]
Cash contribution for capital increase in consolidated subsidiaries	₩ 5,839

The cash outflow for changes in ownership interests in subsidiaries that do not result in a loss of control. [Refer: Subsidiaries [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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-IssueDate 2023-01-01
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-URIDate 2023-03-23

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
-IssueDate 2023-01-01
-Paragraph 42B
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2023-en-r&anchor=para_42B&doctype=Standard
-URIDate 2023-03-23

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