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Other Components of Equity - Summary of Other Components of Equity (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Beginning balance | ₩ 70,666,846 | ₩ 68,889,649 | ₩ 71,092,762
Issuance of share capital of subsidiary | 75,211 | (5,445) | 21,071
Others | (34,747) | (1,274) | (8,137)
Changes in the unrealized fair value of financial assets at FVOCI, net of tax | 59,024 | (8,532) | (11,732)
Shares in other comprehensive Income(loss) of associates and joint ventures, net of tax | 3,609 | 3,181 | (6,789)
Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, net of tax | 301,161 | (132,805) | 19,344
Foreign currency translation of foreign operations, net of tax | 41,189 | (76,442) | 72,816
Net change in the unrealized fair value of derivatives using cash flow hedge accounting, net of tax | (15,778) | 64,561 | 19,242
Ending balance | 65,311,849 | 70,666,846 | 68,889,649
Other Components Of Equity |  |  |
Beginning balance | 14,109,501 |  |
Ending balance | 14,468,450 | 14,109,501 |
Other capital surplus |  |  |
Beginning balance | 1,224,105 | 1,226,364 |
Changes in consolidation scope | 43 | 0 |
Issuance of share capital of subsidiary | (491) | (148) |
Others | 7,452 | (2,111) |
Ending balance | 1,231,109 | 1,224,105 | 1,226,364
Other capital surplus | Other Components Of Equity |  |  |
Beginning balance | 1,224,105 |  |
Ending balance | 1,231,109 | 1,224,105 |
Gains on disposal of Treasury stocks |  |  |
Beginning balance | 387,524 | 387,524 |
Changes in consolidation scope | 0 | 0 |
Issuance of share capital of subsidiary | 0 | 0 |
Others | 0 | 0 |
Ending balance | 387,524 | 387,524 | 387,524
Other Capital Surplus Other Than Gainson Disposal Of Treasury Stocks |  |  |
Beginning balance | 836,581 | 838,840 |
Changes in consolidation scope | 43 | 0 |
Issuance of share capital of subsidiary | (491) | (148) |
Others | 7,452 | (2,111) |
Ending balance | 843,585 | 836,581 | 838,840
Accumulated other comprehensive loss |  |  |
Beginning balance | (409,577) | (280,730) |
Changes in the unrealized fair value of financial assets at FVOCI, net of tax | 59,022 | (8,533) |
Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, net of tax | 301,161 | (132,805) |
Foreign currency translation of foreign operations, net of tax | 15,760 | (46,032) |
Net change in the unrealized fair value of derivatives using cash flow hedge accounting, net of tax | (19,610) | 58,523 |
Others | (4,388) |  |
Ending balance | (57,632) | (409,577) | (280,730)
Accumulated other comprehensive loss | Other Components Of Equity |  |  |
Beginning balance | (409,577) |  |
Ending balance | (57,632) | (409,577) |
Financial assets at fair value through other comprehensive income |  |  |
Beginning balance | (101,132) | (92,599) |
Changes in the unrealized fair value of financial assets at FVOCI, net of tax | 59,022 | (8,533) |
Shares in other comprehensive Income(loss) of associates and joint ventures, net of tax | 0 | 0 |
Foreign currency translation of foreign operations, net of tax | 0 | 0 |
Net change in the unrealized fair value of derivatives using cash flow hedge accounting, net of tax | 0 | 0 |
Others | (4,388) |  |
Ending balance | (46,498) | (101,132) | (92,599)
Shares in other comprehensive Income (loss) of investments in associates and joint ventures |  |  |
Beginning balance | 10,091 | 142,896 |
Changes in the unrealized fair value of financial assets at FVOCI, net of tax | 0 | 0 |
Shares in other comprehensive Income(loss) of associates and joint ventures, net of tax | 301,161 | (132,805) |
Foreign currency translation of foreign operations, net of tax | 0 | 0 |
Net change in the unrealized fair value of derivatives using cash flow hedge accounting, net of tax | 0 | 0 |
Others | 0 |  |
Ending balance | 311,252 | 10,091 | 142,896
Reserve for gain (loss) on valuation of derivatives |  |  |
Beginning balance | 22,394 | (36,129) |
Changes in the unrealized fair value of financial assets at FVOCI, net of tax | 0 | 0 |
Shares in other comprehensive Income(loss) of associates and joint ventures, net of tax | 0 | 0 |
Foreign currency translation of foreign operations, net of tax | 0 | 0 |
Net change in the unrealized fair value of derivatives using cash flow hedge accounting, net of tax | (19,610) | 58,523 |
Others | 0 |  |
Ending balance | 2,784 | 22,394 | (36,129)
Reserve for overseas operations translation credit |  |  |
Beginning balance | (340,930) | (294,898) |
Changes in the unrealized fair value of financial assets at FVOCI, net of tax | 0 | 0 |
Shares in other comprehensive Income(loss) of associates and joint ventures, net of tax | 0 | 0 |
Foreign currency translation of foreign operations, net of tax | 15,760 | (46,032) |
Net change in the unrealized fair value of derivatives using cash flow hedge accounting, net of tax | 0 | 0 |
Others | 0 |  |
Ending balance | (325,170) | (340,930) | ₩ (294,898)
Other equity |  |  |
Beginning balance | 13,294,973 |  |
Ending balance | 13,294,973 | 13,294,973 |
Other equity | Other Components Of Equity |  |  |
Beginning balance | 13,294,973 |  |
Ending balance | 13,294,973 | 13,294,973 |
Statutory revaluation reserve |  |  |
Beginning balance | 13,295,098 |  |
Ending balance | 13,295,098 | 13,295,098 |
Changes in other equity |  |  |
Beginning balance | (125) |  |
Ending balance | ₩ (125) | ₩ (125) |

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