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Changes in financial assets at fair value through other comprehensive income (Details) ₩ in Millions | 12 Months Ended
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Dec. 31, 2018 KRW (₩)
Changes in financial assets at fair value through other comprehensive income [Line Items] |  |
Beginning balance | ₩ 0 |
Effect of change in accounting policy | 471,903 | [1]
Acquisition | 0 |
Disposal | (1) |
Valuation | (75,077) |
Impairment | 0 |
Others | 2,670 |
Ending Balance | 399,495 |
Listed equity securities |  |
Changes in financial assets at fair value through other comprehensive income [Line Items] |  |
Beginning balance | 0 |
Effect of change in accounting policy | 274,453 | [1]
Acquisition | 0 |
Disposal | (1) |
Valuation | (63,007) |
Impairment | 0 |
Others | (1,389) |
Ending Balance | 210,056 |
Unlisted equity securities |  |
Changes in financial assets at fair value through other comprehensive income [Line Items] |  |
Beginning balance | 0 |
Effect of change in accounting policy | 197,450 | [1]
Acquisition | 0 |
Disposal | 0 |
Valuation | (12,070) |
Impairment | 0 |
Others | 4,059 |
Ending Balance | 189,439 | [2]
Current Financial assets at fair value through profit or loss, category |  |
Changes in financial assets at fair value through other comprehensive income [Line Items] |  |
Beginning balance | 0 |
Effect of change in accounting policy | 0 | [1]
Acquisition | 0 |
Disposal | 0 |
Valuation | 0 |
Impairment | 0 |
Others | 0 |
Ending Balance | 0 |
Non-Current Financial assets at fair value through profit or loss, category |  |
Changes in financial assets at fair value through other comprehensive income [Line Items] |  |
Beginning balance | 0 |
Effect of change in accounting policy | 471,903 | [1]
Acquisition | 0 |
Disposal | (1) |
Valuation | (75,077) |
Impairment | 0 |
Others | 2,670 |
Ending Balance | ₩ 399,495 |
[1] | As described in note 2.(5), these financial assets were classified as available-for-sale as of December 31, 2017.
[2] | The Company used initial cost as their fair value because there was not enough information to determine fair value, and the range of the estimated fair value is wide.

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- Definition The amount of financial assets at fair value through other comprehensive income. [Refer: At fair value [member]; Financial assets; Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 8 -Subparagraph h -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_8_h&doctype=Standard -URIDate 2018-03-16 + Details
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