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Consolidated Statements Of Financial Position - KRW (₩)
₩ in Millions
Dec. 31, 2017
Dec. 31, 2016
Current assets [Abstract]    
Cash and cash equivalents (Notes 5,6,7 and 45) ₩ 2,369,739 ₩ 3,051,353
Current financial assets, net (Notes 5,10,11,12 and 45) 1,958,357 2,671,989
Trade and other receivables, net (Notes 5,8,14,20,45,46 and 47) 7,928,972 7,788,876
Inventories, net (Notes 13) 6,002,086 5,479,443
Income tax refund receivables (Notes 41) 100,590 19,163
Current non-financial assets (Notes 15) 753,992 631,860
Assets held for sale (Notes 42) 27,971 65,842
Total current assets 19,141,707 19,708,526
Non-current assets [Abstract]    
Non-current financial assets, net (Notes 5,6,9,10,11,12 and 45) 2,038,913 2,657,494
Non-current trade and other receivables, net (Notes 5,8,14,45,46 and 47) 1,754,797 1,903,515
Property, plant and equipment, net (Notes 18,27 and 49) 150,882,414 145,743,056
Investment properties, net (Notes 19 and 27) 284,714 353,680
Goodwill (Notes 16) 2,582 2,582
Intangible assets other than goodwill, net (Notes 21,27 and 46) 1,187,121 980,821
Investments in associates (Notes 4 and 17) 3,837,421 4,092,252
Investments in joint ventures (Notes 4 and 17) 1,493,275 1,418,196
Deferred tax assets (Notes 41) 919,153 795,131
Non-current non-financial assets (Notes 15) 246,818 181,789
Total non-current assets 162,647,208 158,128,516
Total Assets (Notes 4) 181,788,915 177,837,042
Current liabilities [Abstract]    
Trade and other payables, net (Note 5,22,24,45 and 47) 5,999,521 5,585,411
Current financial liabilities, net (Note 5,11,23,45 and 47) 9,194,552 8,942,329
Income tax payables (Note 41) 508,402 1,843,288
Current non-financial liabilities (Note 20,28 and 29) 5,584,308 6,368,210
Current provisions (Note 26 and 45) 2,137,498 1,999,988
Total current liabilities 23,424,281 24,739,226
Non-current liabilities [Abstract]    
Non-current trade and other payables, net (Note 5,22,24,45 and 47) 3,223,480 3,558,175
Non-current financial liabilities, net (Note 5,11,23,45 and 47) 45,980,899 44,835,562
Non-current non-financial liabilities (Note 28 and 29) 8,072,434 7,591,605
Employee benefits liabilities, net (Note 25 and 45) 1,483,069 1,686,258
Deferred tax liabilities (Note 41) 10,415,397 8,948,520
Non-current provisions (Note 26 and 45) 16,224,714 13,427,151
Total non-current liabilities 85,399,993 80,047,271
Total liabilities (Note 4) 108,824,274 104,786,497
Equity [Abstract]    
Contributed capital (Note 1,30 and 45) 4,053,578 4,053,578
Share capital 3,209,820 3,209,820
Share premium 843,758 843,758
Retained earnings (Note 31) 53,370,558 53,173,871
Legal reserves [1] 1,604,910 1,604,910
Voluntary reserves 34,833,844 31,847,275
Unappropriated retained earnings 16,931,804 19,721,686
Other components of equity (Note 34) 14,257,309 14,496,244
Other capital surplus 1,233,793 1,235,146
Accumulated other comprehensive loss (271,457) (33,875)
Other equity 13,294,973 13,294,973
Equity attributable to owners of the controlling company 71,681,445 71,723,693
Non-controlling interests (Note 16 and 33) 1,283,196 1,326,852
Total equity 72,964,641 73,050,545
Total equity and liabilities ₩ 181,788,915 ₩ 177,837,042
[1] The KEPCO Act requires KEPCO to appropriate a legal reserve equal to at least 20 percent of net income for each accounting period until the reserve equals 50 percent of KEPCO’s common stock. The legal reserve is not available for cash dividends; however, this reserve may be credited to paid-in capital or offset against accumulated deficit by the resolution of the shareholders.