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Other Financial Assets and Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2017
Text block1 [abstract] |
Summary of Other Financial Assets and Liabilities | Details of other financial assets and liabilities as of December 31, 2016 and 2017, are as follows:
(In millions of Korean won) |  | 2016 |  |  | 2017 |
Other financial assets |  |  |  |  |  |  |  |
Financial assets at fair value through profit or loss |  | ￦ | 6,277 |  |  | ￦ | 5,813 |
Derivatives used for hedge |  |  | 227,318 |  |  |  | 7,389 |
Financial instruments1 |  |  | 716,769 |  |  |  | 1,333,317 |
Available-for-sale financial assets1 |  |  | 404,774 |  |  |  | 380,953 |
Held-to-maturity investments |  |  | 30,143 |  |  |  | 151 |
Less: Non-current |  |  | (664,726 | ) |  |  | (754,992 | )
Current |  | ￦ | 720,555 | ) |  | ￦ | 972,631 | )
Other financial liabilities |  |  |  |  |  |  |  |
Financial liabilities at fair value through the profit or loss |  | ￦ | 1,973 |  |  | ￦ | 5,051 |
Derivatives used for hedge |  |  | 14,928 |  |  |  | 93,770 |
Other financial liabilities |  |  | 91,763 |  |  |  | 87,669 |
Less: Non-current |  |  | (108,431 | ) |  |  | (149,267 | )
Current |  | ￦ | 233 |  |  | ￦ | 37,223 |
1 | As of December 31, 2017, MMW(Money Market Wrap) and MMT(Money Market Trust) amounting to ￦870,453 million is included in other financial assets. As of December 31, 2017, the Group’s financial instruments amounting to ￦59,660 million (December 31, 2016: ￦49,721 million), which consist of certain proceeds from the disposal of Ustream Inc. deposited in an escrow account, checking account deposits and deposits for Win-win Growth Cooperative loans, are subject to withdrawal restrictions.
Summary of Financial Instruments at Fair Value Through Profit or Loss | Financial instruments at fair value through profit or loss as of December 31, 2016 and 2017, are as follows:
|  | 2016 |  |  | 2017 |
(In millions of Korean won) |  | Assets |  |  | Liabilities |  |  | Assets |  |  | Liabilities |
Financial instruments at fair value through profit and loss |  | ￦ | 6,277 |  |  | ￦ | — |  |  | ￦ | 5,813 |  |  | ￦ | — |
Other derivatives liabilities |  | ￦ | — |  |  | ￦ | 1,973 |  |  | ￦ | — |  |  | ￦ | 5,051 |
Summary of Financial Assets and Liabilities at Fair Value Through Profit or Loss | Financial instruments at fair value through profit or loss
|  | 2015 |  |  | 2016 |  |  | 2017 |
(in millions of Korean won) |  | Valuation gains |  |  | Valuation losses |  |  | Valuation gains |  |  | Valuation losses |  |  | Valuation gains |  |  | Valuation losses |
Valuation gains and losses on financial assets |  | ￦ | — |  |  | ￦ | — |  |  | ￦ | 470 |  |  | ￦ | 7,654 |  |  | ￦ | — |  |  | ￦ | 464 |
Total |  | ￦ | — |  |  | ￦ | — |  |  | ￦ | 470 |  |  | ￦ | 7,654 |  |  | ￦ | — |  |  | ￦ | 464 |
Summary of Financial Assets Held for Trading | Held for trading
|  | 2015 |  |  | 2016 |  |  | 2017 |
(in millions of Korean won) |  | Valuation gains |  |  | Valuation losses |  |  | Valuation gains |  |  | Valuation losses |  |  | Valuation gains |  |  | Valuation losses |
Valuation gains and losses on financial assets |  | ￦ | — |  |  | ￦ | 2,006 |  |  | ￦ | 33 |  |  | ￦ | — |  |  | ￦ | — |  |  | ￦ | 3,078 |
Total |  | ￦ | — |  |  | ￦ | 2,006 |  |  | ￦ | 33 |  |  | ￦ | — |  |  | ￦ | — |  |  | ￦ | 3,078 |
Summary of Derivative Financial Assets and Liabilities | Derivatives used for hedge as of December 31, 2016 and 2017, are as follows:
|  | 2016 |  |  | 2017 |
(in millions of Korean won) |  | Assets |  |  | Liabilities |  |  | Assets |  |  | Liabilities |
Interest rate swap1 |  | ￦ | — |  |  | ￦ | 3,278 |  |  | ￦ | — |  |  | ￦ | 2,633 |
Currency swap2 |  |  | 214,648 |  |  |  | 11,650 |  |  |  | 7,389 |  |  |  | 81,300 |
Currency forwards3 |  |  | 12,670 |  |  |  | — |  |  |  | — |  |  |  | 9,837 |
Total |  |  | 227,318 |  |  |  | 14,928 |  |  |  | 7,389 |  |  |  | 93,770 |
Less: non-current |  |  | (97,220 | ) |  |  | (14,695 | ) |  |  | (4,675 | ) |  |  | (56,547 | )
Current |  | ￦ | 130,098 |  |  | ￦ | 233 |  |  | ￦ | 2,714 |  |  | ￦ | 37,223 |
| 1 | The interest rate swap contract is to hedge the risk of variability in future fair value of the bond.
| 2 | The currency swap contract is to hedge the risk of variability in cash flow from the bond. In applying the cash flow hedge accounting, the Group hedges its exposures to cash flow fluctuation until September 7, 2034.
| 3 | The currency forward contract is to hedge the risk of variability in cash flow from transactions in foreign currencies due to changes in foreign exchange rate.
Summary of Valuation Gains and Losses on Derivatives Contracts | The valuation gains and losses on the derivatives contracts for the years ended December 31, 2015, 2016 and 2017, are as follows:
(in millions of Korean won) |  | 2015 |  |  | 2016 |  |  | 2017 |
Type of Transaction |  | Valuation gain |  |  | Valuation loss |  |  | Other comprehensive income1 |  |  | Valuation gain |  |  | Valuation loss |  |  | Other comprehensive income1 |  |  | Valuation gain |  |  | Valuation loss |  |  | Other comprehensive income1 |
Interest rate swap |  | ￦ | — |  |  | ￦ | — |  |  | ￦ | (2,858 | ) |  | ￦ | — |  |  | ￦ | 148 |  |  | ￦ | (142 | ) |  | ￦ | 38 |  |  | ￦ | — |  |  | ￦ | 637 |
Currency swap |  |  | 141,512 |  |  |  | 1,733 |  |  |  | 150,255 |  |  |  | 97,158 |  |  |  | (10 | ) |  |  | 85,479 |  |  |  | 19 |  |  |  | 187,468 |  |  |  | (146,752 | )
Currency forwards |  |  | — |  |  |  | — |  |  |  | 247 |  |  |  | 12,278 |  |  |  | — |  |  |  | 146 |  |  |  | — |  |  |  | 22,114 |  |  |  | (393 | )
Total |  | ￦ | 141,512 |  |  | ￦ | 1,733 |  |  | ￦ | 147,644 |  |  | ￦ | 109,436 |  |  | ￦ | 138 |  |  | ￦ | 85,483 |  |  | ￦ | 57 |  |  | ￦ | 209,582 |  |  | ￦ | (146,508 | )
1 | The amounts before adjustments of deferred income tax directly reflected in equity and allocation to the non-controlling interest.
Summary of Available-For-Sale Financial Assets | Details of available-for-sale financial assets as of December 31, 2016, and 2017 are as follows:
(In millions of Korean won) |  | 2016 |  |  | 2017 |
Marketable equity securities |  | ￦ | 5,387 |  |  | ￦ | 6,859 |
Non-marketable equity securities |  |  | 372,703 |  |  |  | 364,195 |
Debt securities |  |  | 26,684 |  |  |  | 9,899 |
Total |  |  | 404,774 |  |  |  | 380,953 |
Less: non-current |  |  | (384,798 | ) |  |  | (379,488 | )
Current |  | ￦ | 19,976 |  |  | ￦ | 1,465 |
Summary of Changes in Available-for-Sale Financial Assets | Changes of available-for-sale financial assets for the years ended December 31, 2016, and 2017 are as follows:
(In millions of Korean won) |  | 2016 |  |  | 2017 |
Beginning |  | ￦ | 360,037 |  |  | ￦ | 404,774 |
Acquisition |  |  | 44,302 |  |  |  | 89,027 |
Disposal |  |  | (18,161 | ) |  |  | (129,682 | )
Valuation1 |  |  | 14,413 |  |  |  | 67,593 |
Impairment |  |  | (966 | ) |  |  | (6,137 | )
Reclassification |  |  | 5,149 |  |  |  | (44,622 | )
Changes in scope of consolidation |  |  | — |  |  |  | — |
Ending |  | ￦ | 404,774 |  |  | ￦ | 380,953 |
| 1 | The amounts before adjustments of deferred income tax directly reflected in equity and allocation to the non-controlling interest.

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