XML 17 R1.htm IDEA: XBRL DOCUMENT v3.21.1
Document And Entity Information
 12 Months Ended
Dec. 31, 2020
shares
Document Information [Line Items]  
Entity Registrant Name KOREA ELECTRIC POWER CORP
Entity Central Index Key 0000887225
Document Type 20-F
Document Period End Date Dec. 31, 2020
Amendment Flag false
Document Fiscal Year Focus 2020
Document Fiscal Period Focus FY
Current Fiscal Year End Date --12-31
Entity Well-known Seasoned Issuer Yes
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Filer Category Large Accelerated Filer
Entity Emerging Growth Company false
Entity Shell Company false
Entity Common Stock, Shares Outstanding 641,964,077
Entity Interactive Data Current Yes
Document Annual Report true
Document Transition Report false
Document Shell Company Report false
Document Registration Statement false
ICFR Auditor Attestation Flag true
ADS  
Document Information [Line Items]  
Trading Symbol KEP
Security 12b Title American depositary shares, each representing one-half of share of common stock
Security Exchange Name NYSE
Common Stock  
Document Information [Line Items]  
Trading Symbol KEP
Security 12b Title Common stock, par value Won 5,000 per share
Security Exchange Name NYSE