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Trade and Other Receivables - Changes in the Allowance for Doubtful Accounts (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Trade receivables |  |  |
Reconciliation of changes in allowance account for credit losses of financial assets [Line Items] |  |  |
Beginning balance | ₩ 199,000 | ₩ 205,339 | ₩ 208,990
Changes in allowance account for credit losses of financial assets |  |  |
Bad debt expense | 68,385 | 27,078 | 19,039
Write-off | (26,109) | (26,319) | (21,809)
Reversal | (5,577) | (3,444) | (1,071)
Others | (3,054) | (3,654) | 190
Ending balance | 232,645 | 199,000 | 205,339
Other receivables |  |  |
Reconciliation of changes in allowance account for credit losses of financial assets [Line Items] |  |  |
Beginning balance | 109,453 | 82,710 | 132,379
Changes in allowance account for credit losses of financial assets |  |  |
Bad debt expense | 24,290 | 4,220 | 18,411
Write-off | (4,472) | (1,103) | (58,762)
Reversal | (1,942) | (37) | (79)
Others | 6,624 | 23,663 | (9,239)
Ending balance | ₩ 133,953 | ₩ 109,453 | ₩ 82,710

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- Definition The amount of additional allowance for credit losses of financial assets recognised in profit or loss. [Refer: Allowance account for credit losses of financial assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expired 2023-01-01 -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 16 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_16&doctype=Standard&book=b -URIDate 2023-03-23 + Details
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- Definition The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expired 2023-01-01 -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 16 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_16&doctype=Standard&book=b -URIDate 2023-03-23 + Details
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- Definition The increase (decrease) in allowance account for credit losses of financial assets resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Allowance account for credit losses of financial assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expired 2023-01-01 -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 16 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_16&doctype=Standard&book=b -URIDate 2023-03-23 + Details
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- Definition The decrease in an allowance account for credit losses of financial assets resulting from the reversal of impairment. [Refer: Allowance account for credit losses of financial assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expired 2023-01-01 -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 16 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_16&doctype=Standard&book=b -URIDate 2023-03-23 + Details
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- Definition The decrease in an allowance account for credit losses of financial assets resulting from the utilisation of the allowance. [Refer: Allowance account for credit losses of financial assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expired 2023-01-01 -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 16 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_16&doctype=Standard&book=b -URIDate 2023-03-23 + Details
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