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Other Components Of Equity (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Changes In Other Components Of Equity [Line Items] |  |
Beginning balance | ₩ 14,257,309 | ₩ 14,496,244
Disposal of subsidiary | 0 | 0
Issuance of share capital of subsidiary | 1,032 | (1,378)
Others | 0 | 25
Effect of change in accounting policy | (76,851) | 0
Changes in the unrealized fair value of available- for-sale financial assets, net of tax |  | (7,102)
Changes in the unrealized fair value of financial assets at FVOCI, net of tax | (34,125) |
Shares in other comprehensive loss of associates and joint ventures, net of tax | 57,089 | (154,991)
Foreign currency translation of foreign operations, net of tax | (32,086) | (95,103)
Net change in the unrealized fair value of derivatives using cash flow hedge accounting, net of tax | (1,140) | 19,614
Ending balance | 14,171,228 | 14,257,309
Other capital surplus |  |
Changes In Other Components Of Equity [Line Items] |  |
Beginning balance | 1,233,793 | 1,235,146
Issuance of share capital of subsidiary | 1,032 | (1,378)
Others | 0 | 25
Ending balance | 1,234,825 | 1,233,793
Gains on disposal of Treasury stocks |  |
Changes In Other Components Of Equity [Line Items] |  |
Beginning balance | 387,524 | 387,524
Issuance of share capital of subsidiary | 0 | 0
Others | 0 | 0
Ending balance | 387,524 | 387,524
Other Capital Surplus Other Than Gainson Disposal Of Treasury Stocks |  |
Changes In Other Components Of Equity [Line Items] |  |
Beginning balance | 846,269 | 847,622
Issuance of share capital of subsidiary | 1,032 | (1,378)
Others | 0 | 25
Ending balance | 847,301 | 846,269
Accumulated other comprehensive loss |  |
Changes In Other Components Of Equity [Line Items] |  |
Beginning balance | (271,457) | (33,875)
Effect of change in accounting policy | (76,851) |
Changes in the unrealized fair value of available- for-sale financial assets, net of tax |  | (7,102)
Changes in the unrealized fair value of financial assets at FVOCI, net of tax | (34,125) |
Shares in other comprehensive loss of associates and joint ventures, net of tax | 57,089 | (154,991)
Foreign currency translation of foreign operations, net of tax | (32,086) | (95,103)
Net change in the unrealized fair value of derivatives using cash flow hedge accounting, net of tax | (1,140) | 19,614
Ending balance | (358,570) | (271,457)
Financial assets at fair value through other comprehensive income |  |
Changes In Other Components Of Equity [Line Items] |  |
Beginning balance | 29,268 |
Effect of change in accounting policy | (76,851) |
Changes in the unrealized fair value of financial assets at FVOCI, net of tax | (34,125) |
Shares in other comprehensive loss of associates and joint ventures, net of tax | 0 |
Foreign currency translation of foreign operations, net of tax | 0 |
Net change in the unrealized fair value of derivatives using cash flow hedge accounting, net of tax | 0 |
Ending balance | (81,708) | 29,268
Available-for-sale financial asset valuation reserve |  |
Changes In Other Components Of Equity [Line Items] |  |
Beginning balance | 29,268 | 36,370
Changes in the unrealized fair value of available- for-sale financial assets, net of tax |  | (7,102)
Shares in other comprehensive loss of associates and joint ventures, net of tax |  | 0
Foreign currency translation of foreign operations, net of tax |  | 0
Net change in the unrealized fair value of derivatives using cash flow hedge accounting, net of tax |  | 0
Ending balance |  | 29,268
Shares in other comprehensive Income (loss) of investments in associates and joint ventures |  |
Changes In Other Components Of Equity [Line Items] |  |
Beginning balance | 66,464 | 221,455
Shares in other comprehensive loss of associates and joint ventures, net of tax | 57,089 | (154,991)
Ending balance | 123,553 | 66,464
Reserve for overseas operations translation credit |  |
Changes In Other Components Of Equity [Line Items] |  |
Beginning balance | (318,159) | (223,056)
Foreign currency translation of foreign operations, net of tax | (32,086) | (95,103)
Ending balance | (350,245) | (318,159)
Reserve for gain (loss) on valuation of derivatives |  |
Changes In Other Components Of Equity [Line Items] |  |
Beginning balance | (49,030) | (68,644)
Net change in the unrealized fair value of derivatives using cash flow hedge accounting, net of tax | (1,140) | 19,614
Ending balance | (50,170) | (49,030)
Other equity |  |
Changes In Other Components Of Equity [Line Items] |  |
Beginning balance | 13,294,973 | 13,294,973
Ending balance | 13,294,973 | 13,294,973
Statutory revaluation reserve |  |
Changes In Other Components Of Equity [Line Items] |  |
Beginning balance | 13,295,098 | 13,295,098
Ending balance | 13,295,098 | 13,295,098
Changes in other equity |  |
Changes In Other Components Of Equity [Line Items] |  |
Beginning balance | (125) | (125)
Ending balance | ₩ (125) | ₩ (125)

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