XML 26 R11.htm IDEA: XBRL DOCUMENT
v3.19.1

Restricted Deposits | 12 Months Ended
--- | ---
Dec. 31, 2018
Restricted Deposits [Abstract] |
Restricted Deposits |
6. | Restricted Deposits
Restricted deposits as of December 31, 2017 and 2018 are as follows:
|  |  |  |  |  |  | 2017 |  |  | 2018 |
|  |  |  |  |  |  | In millions of won |
Cash and cash equivalents |  | Escrow accounts |  | ￦ |  |  |  |  | 53 |  |  |  | — |
|  | Deposits for government project |  |  |  |  |  |  | 15,365 |  |  |  | 12,747 |
|  | Collateral provided for borrowings |  |  |  |  |  |  | 79,569 |  |  |  | 100,998 |
|  | Collateral provided for lawsuit |  |  |  |  |  |  | 2 |  |  |  | 3 |
|  | Deposits for transmission regional support program |  |  |  |  |  |  | 2,320 |  |  |  | 4,337 |
|  | Decommissioning costs of nuclear power plants |  |  |  |  |  |  | — |  |  |  | 604 |
Short-term financial instruments |  | Bidding guarantees |  |  |  |  |  |  | 119 |  |  |  | — |
|  | Restriction on withdrawal related to ‘win-win growth program’ for small and medium enterprises |  |  |  |  |  |  | 34,000 |  |  |  | 34,000 |
Current financial assets at fair value through profit or loss |  | Decommissioning costs of nuclear power plants |  |  |  |  |  |  | — |  |  |  | 29,451 |
Non-current financial assets at fair value through profit or loss |  | Decommissioning costs of nuclear power plants |  |  |  |  |  |  | — |  |  |  | 498,555 |
Financial assets at fair value through profit or loss |  | Decommissioning costs of nuclear power plants |  |  |  |  |  |  | 108,512 |  |  |  | — |
Non-current available-for-sale financial asset |  | Decommissioning costs of nuclear power plants |  |  |  |  |  |  | 214,156 |  |  |  | — |
Long-term financial instruments |  | Escrow accounts |  |  |  |  |  |  | — |  |  |  | 69 |
|  | Guarantee deposits for checking account |  |  |  |  |  |  | 2 |  |  |  | — |
|  | Guarantee deposits for banking accounts at oversea branches |  |  |  |  |  |  | 302 |  |  |  | 315 |
|  | Decommissioning costs of nuclear power plants |  |  |  |  |  |  | 337,234 |  |  |  | 245,896 |
|  | Funds for developing small and medium enterprises(*) |  |  |  |  |  |  | 200,000 |  |  |  | 200,000 |
|  |  |  | ￦ |  |  |  |  | 991,634 |  |  |  | 1,126,975 |
| (*) | Deposits for small and medium enterprise at IBK and others for construction of Bitgaram Energy Valley and support for the high potential businesses as of December 31, 2017 and 2018.

X
- References No definition available. + Details
Name: | kep_DisclosureOfRestrictedCashAndInvestmentsExplanatory
Namespace Prefix: | kep_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RestrictedCashAndInvestmentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration