XML 168 R156.htm IDEA: XBRL DOCUMENT v3.22.1
Consolidated Subsidiaries - Summary of Cash Dividends Received from Subsidiaries (Details) - KRW (₩)
₩ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Subsidiaries      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries ₩ 454,255 ₩ 362,162 ₩ 353,310
Korea Hydro & Nuclear Power Co., Ltd.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 279,779 106,675 0
Korea South-East Power Co., Ltd.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 0 11,905 7,143
Korea Midland Power Co., Ltd.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 0 0 0
Korea Western Power Co., Ltd.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 0 0 0
Korea Southern Power Co., Ltd.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 0 0 15,277
Korea East-West Power Co., Ltd.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 0 17,959 985
KEPCO Engineering & Construction Company, Inc.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 7,089 7,793 3,519
KEPCO Plant Service & Engineering Co., Ltd.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 26,301 44,068 41,084
KEPCO Nuclear Fuel Co., Ltd.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 5,206 7,270 4,219
KEPCO KDN Co., Ltd.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 18,854 14,720 19,136
KEPCO International HongKong Ltd.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 0 11,858 10,243
KEPCO International Philippines Inc.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 0 0 70,480
KEPCO Ilijan Corporation      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 7,955 34,502 65,776
KEPCO Philippines Holdings Inc.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 60,520 70,876 63,522
KOSEP Australia Pty., Ltd.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 0 1,856 8,120
KOSPO Australia Pty., Ltd.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 3,095 0 4,335
Qatrana Electric Power Company      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 2,615 0 10,313
KEPCO KPS Philippines Corp.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 0 1,215 3,854
Tamra Offshore Wind Power Co., Ltd.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 0 2,640 4,823
KEPCO Netherlands S3 B.V.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 0 6,981 874
PT. KOMIPO Pembangkitan Jawa Bali      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 153 0 1,971
KEPCO Netherlands J3 B.V.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 27,237 0 0
Gyeongju Wind Power Co., Ltd.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 2,800 2,800 2,800
VI Carbon Professional Private Special Asset Investment Trust 1      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 0 7 11
KOSPO Power Services Ltda.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 0 0 745
KEPCO Netherlands B.V.      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 0 11,098 13,266
PT. Cirebon Power Service      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 0 221 0
Chitose Solar Power Plant LLC      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 0 858 814
Fujeij Wind Power Company      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 11,920 6,306 0
KOSPO Jordan LLC      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries 731 535 0
Energy Innovation Fund I      
Disclosure of Cash dividends received from subsidiaries [Line Items]      
Cash dividends received from subsidiaries ₩ 0 ₩ 19 ₩ 0