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Statement of Cash Flows - Summary of Changes in Liabilities Incurred From Financing Activities (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |
Beginning balance | ₩ 74,345,677 | ₩ 72,946,674
Cash flows | 9,081,358 | 1,924,810
Increase | 73,090 | 275,686
Effect of exchange rate fluctuations and others | 1,439,891 | (801,493)
Ending balance | 84,940,016 | 74,345,677
Borrowings and debt securities |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |
Beginning balance | 69,724,581 | 67,876,541
Cash flows | 9,653,394 | 2,538,787
Increase | 0 | 0
Effect of exchange rate fluctuations and others | 1,151,538 | (690,747)
Ending balance | 80,529,513 | 69,724,581
Lease liabilities |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |
Beginning balance | 4,621,096 | 5,070,133
Cash flows | (572,036) | (613,977)
Increase | 73,090 | 275,686
Effect of exchange rate fluctuations and others | 288,353 | (110,746)
Ending balance | ₩ 4,410,503 | ₩ 4,621,096

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- Definition The increase (decrease) in liabilities arising from financing activities resulting from financing cash flows. [Refer: Cash flows from (used in) financing activities; Liabilities arising from financing activities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 44B -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_44B_a&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The increase in liabilities arising from financing activities resulting from new leases. [Refer: Liabilities arising from financing activities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Section A Statement of cash flows for an entity other than a financial institution -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&doctype=Illustrative%20Examples&dita_xref=IAS07_IE_A__IAS07_IE_A_TI -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 44B -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_44B&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of liabilities for which cash flows were, or future cash flows will be, classified in the statement of cash flows as cash flows from financing activities. [Refer: Cash flows from (used in) financing activities; Liabilities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 44D -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_44D&doctype=Standard -URIDate 2021-03-24 + Details
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