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Non-Cash Transactions (Tables) | 12 Months Ended
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Dec. 31, 2020
Non-Cash Transactions [Abstract] |
Significant non-cash activities |
Significant non-cash transactions for the years ended December 31, 2018, 2019, and 2020 are as follows:
Transactions |  |  |  |  | 2018 |  |  | 2019 |  |  | 2020 |
|  |  |  |  | In millions of won |
Transfer from construction-in-progress to other assets |  | ￦ |  |  |  |  | 8,656,252 |  |  |  | 14,052,094 |  |  |  | 10,189,527 |
Recognition of asset retirement cost and related provision for decommissioning costs |  |  |  |  |  |  | 310,272 |  |  |  | 2,425,668 |  |  |  | 895,507 |
Transfer from provision for disposal of spent nuclear fuel to accrued expenses |  |  |  |  |  |  | 482,699 |  |  |  | 376,103 |  |  |  | 395,921 |
Transfer from long-term borrowings and debt securities to current portion of long-term borrowings and debt securities |  |  |  |  |  |  | 7,100,846 |  |  |  | 7,759,284 |  |  |  | 9,237,883 |
Transfer from inventory to stored nuclear fuel |  |  |  |  |  |  | — |  |  |  | 1,129,374 |  |  |  | 1,055,974 |
Transfer of right-of-use assets due to change in accounting policy and others |  |  |  |  |  |  | — |  |  |  | 5,364,647 |  |  |  | 291,334 |
Changes in liabilities incurred from financing activities |
Changes in liabilities incurred from financing activities for the years ended December 31, 2019, and 2020 are as follows:
|  |  |  |  | 2019 |
|  |  |  |  |  |  |  |  |  |  | Non-cash changes |  |  |  |
|  |  |  |  | Beginning balance |  |  | Cash flows |  |  | Increase |  |  | Changes in accounting policies |  |  | Effect of exchange rate fluctuations and others |  |  | Increase from the business combination |  |  | Ending balance |
|  |  |  |  | In millions of won |
Borrowings and debt securities |  | ￦ |  |  |  |  | 61,034,626 |  |  |  | 6,342,074 |  |  |  | — |  |  |  | — |  |  |  | 496,940 |  |  |  | 2,900 |  |  |  | 67,876,540 |
Lease liabilities |  |  |  |  |  |  | 283,806 |  |  |  | (573,437 | ) |  |  | 218,800 |  |  |  | 4,943,584 |  |  |  | 197,380 |  |  |  | — |  |  |  | 5,070,133 |
|  | ￦ |  |  |  |  | 61,318,432 |  |  |  | 5,768,637 |  |  |  | 218,800 |  |  |  | 4,943,584 |  |  |  | 694,080 |  |  |  | 2,900 |  |  |  | 72,946,673 |
|  |  |  |  | 2020 |
|  |  |  |  |  |  |  |  |  |  | Non-cash changes |  |  |  |
|  |  |  |  | Beginning balance |  |  | Cash flows |  |  | Increase |  |  | Effect of exchange rate fluctuations and others |  |  | Ending balance |
|  |  |  |  | In millions of won |
Borrowings and debt securities |  | ￦ |  |  |  |  | 67,876,541 |  |  |  | 2,538,787 |  |  |  | — |  |  |  | (690,747 | ) |  |  | 69,724,581 |
Lease liabilities |  |  |  |  |  |  | 5,070,133 |  |  |  | (613,977 | ) |  |  | 275,686 |  |  |  | (110,746 | ) |  |  | 4,621,096 |
|  | ￦ |  |  |  |  | 72,946,674 |  |  |  | 1,924,810 |  |  |  | 275,686 |  |  |  | (801,493 | ) |  |  | 74,345,677 |

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- Definition The disclosure of information that enables users of financial statements to evaluate changes in liabilities arising from financing activities, including both changes arising from cash flows and non-cash changes. [Refer: Liabilities arising from financing activities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2020-01-01 -Paragraph 44A -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_44A&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition Tabular disclosure of noncash investing and financing activities, classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4313-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586 + Details
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