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Provisions - Summary of Changes in Provisions (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Disclosure of other provisions [line items] |  |
Beginning balance | ₩ 252,192 | ₩ 254,161
Increase (Transfer) | 32,895 | 33,004
Usage | (7,301) | (9,203)
Reversal | (22,897) | (27,092)
Change in scope of consolidation | 2,314 | 1,322
Others | 194 |
Ending balance | 257,397 | 252,192
Current | 171,316 | 165,990
Non-current | 86,081 | 86,202
Litigation [member] |  |
Disclosure of other provisions [line items] |  |
Beginning balance | 76,500 | 64,241
Increase (Transfer) | 6,288 | 17,064
Usage | (2,599) | (3,948)
Reversal | (24) | (857)
Ending balance | 80,165 | 76,500
Current | 79,947 | 76,500
Non-current | 218 |
Restoration cost [member] |  |
Disclosure of other provisions [line items] |  |
Beginning balance | 105,767 | 113,289
Increase (Transfer) | 6,772 | (1,933)
Usage | (2,776) | (2,990)
Reversal | (3,685) | (3,023)
Change in scope of consolidation | 1,086 | 424
Others | 194 |
Ending balance | 107,358 | 105,767
Current | 26,026 | 22,343
Non-current | 81,332 | 83,424
Others [member] |  |
Disclosure of other provisions [line items] |  |
Beginning balance | 69,925 | 76,631
Increase (Transfer) | 19,835 | 17,873
Usage | (1,926) | (2,265)
Reversal | (19,188) | (23,212)
Change in scope of consolidation | 1,228 | 898
Ending balance | 69,874 | 69,925
Current | 65,343 | 67,147
Non-current | ₩ 4,531 | ₩ 2,778

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- Definition The decrease in other provisions resulting from the loss of control of a subsidiary. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 37 -IssueDate 2021-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The increase (decrease) in other provisions resulting from transfers and changes that the entity does not separately disclose in the same statement or note. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 37 -IssueDate 2021-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of non-current provisions other than provisions for employee benefits. [Refer: Non-current provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 78 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_78_d&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of provisions other than provisions for employee benefits. [Refer: Provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2021-01-01 -Paragraph 84 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84_a&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 78 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_78_d&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of current provisions other than provisions for employee benefits. [Refer: Provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 78 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_78_d&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount used (ie incurred and charged against the provision) for other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2021-01-01 -Paragraph 84 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84_c&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount reversed for unused other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2021-01-01 -Paragraph 84 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84_d&doctype=Standard -URIDate 2021-03-24 + Details
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