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Statement of Cash Flows (Tables)

12 Months Ended

Dec. 31, 2023

Non Cash Transactions [Abstract]

Summary of Significant Non-cash Activities

(1)	Significant non-cash transactions for the years ended December 31, 2021, 2022 and 2023 are as follows:


Transactions						2021				2022				2023
						In millions of won
Transfer from construction-in-progress to other assets		￦					12,902,589				13,723,972				10,090,726
Recognition of asset retirement cost and related provision for decommissioning costs							2,356,805				3,497,866				(292,120	)
Transfer from provision for disposal of spent nuclear fuel to accrued expenses							455,401				417,687				379,011
Transfer from long-term borrowings and debt securities to current portion of long-term borrowings and debt securities							11,109,271				13,838,578				30,454,012
Transfer from inventory to stored nuclear fuel							908,842				738,720				827,279
Transfer of right-of-use assets due to change in accounting policy and others							78,213				197,016				261,862

Summary of Changes in Liabilities Incurred From Financing Activities

(2)	Changes in liabilities incurred from financing activities for the years ended December 31, 2022 and 2023 are as follows:


						2022
														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		￦					80,529,513				39,193,815				—				882,037				120,605,365
Lease liabilities							4,410,503				(562,647	)			109,019				206,268				4,163,143

		￦					84,940,016				38,631,168				109,019				1,088,305				124,768,508


						2023
														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		￦					120,605,365				12,692,924				—				333,541				133,631,830
Lease liabilities							4,163,143				(574,239	)			253,495				(34,519	)			3,807,880

		￦					124,768,508				12,118,685				253,495				299,022				137,439,710