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Risk Management (Tables)

12 Months Ended

Dec. 31, 2020

Risk Management [Abstract]

Capital risk management

Details of the Company’s capital management accounts as of December 31, 2019 and 2020 are as follows:

						2019				2020
						In millions of won
Total borrowings and debt securities		￦					67,876,541				69,724,581
Cash and cash equivalents							1,810,129				2,029,584
Net borrowings and debt securities							66,066,412				67,694,997
Total equity							68,889,649				70,666,846
Debt to equity ratio							95.90	%			95.79	%

Credit risk management

Book values of the financial assets represent the maximum exposed amounts of the credit risk. Details of the Company’s level of maximum exposure to credit risk as of December 31, 2019 and 2020 are as follows:

						2019				2020
						In millions of won
Cash and cash equivalents		￦					1,810,129				2,029,584
Financial assets at fair value through profit or loss(*1)							747,261				1,808,404
Derivative assets (trading)							165,204				110,764
Financial assets at amortized cost							13,609				14,422
Loans							738,707				790,162
Long-term/short-term financial instruments							1,960,227				2,062,103
Derivative assets (applying hedge accounting)							145,829				55,649
Trade and other receivables							9,703,749				9,780,039
Financial guarantee contracts(*2)							3,338,566				3,224,696

(*1) Equity investments held by the Company are excluded.

(*2) Maximum exposure associated with the financial guarantee contracts is the maximum amounts of the obligation.

Sensitivity analysis of Defined benefit obligation

A sensitivity analysis of defined benefit obligation assuming a 1% increase and decrease movements in the actuarial valuation assumptions as of December 31, 2019 and 2020 are as follows:

								2019								2020
Type		Accounts						1% Increase				1% Decrease				1% Increase				1% Decrease
								In millions of won
Future salary increases		Increase (decrease) in defined benefit obligation		￦					442,748				(386,147	)			488,087				(425,708	)
Discount rate		Increase (decrease) in defined benefit obligation							(402,099	)			475,765				(443,527	)			524,856

Changes of employee benefits assuming a 1% increase and decrease movements in discount rate on plan asset for the years ended December 31, 2019 and 2020 are ￦17,734 million and ￦20,960 million, respectively.

Changes in provisions due to movements in underlying assumptions

Changes in provisions due to movements in underlying assumptions as of December 31, 2019 and 2020 are as follows:

Type		Accounts		2019				2020
PCBs		Inflation rate			1.09	%			1.06	%
		Discount rate			1.97	%			1.83	%
Nuclear plants		Inflation rate			1.10	%			1.07	%
		Discount rate			2.43	%			2.20	%
Spent fuel		Inflation rate			2.93	%			2.93	%
		Discount rate			4.49	%			4.49	%

Sensitivity analysis of Provisions due to movements in underlying assumptions

A sensitivity analysis of provisions assuming a 0.1% increase and decrease movements in the underlying assumptions as of December 31, 2019 and 2020 are as follows:

								2019								2020
Type		Accounts						0.1% Increase				0.1% Decrease				0.1% Increase				0.1% Decrease
								In millions of won
Discount rate		PCBs		￦					(527	)			530				(292	)			293
		Nuclear plants							(316,184	)			325,828				(326,926	)			336,928
		Spent fuel							(51,607	)			53,621				(51,558	)			53,571
Inflation rate		PCBs							534				(532	)			295				(294	)
		Nuclear plants							346,082				(336,182	)			357,676				(347,450	)
		Spent fuel							54,396				(52,424	)			54,345				(52,375	)

Foreign currency risk

The Company undertakes transactions denominated in foreign currencies; consequently, exposures to exchange rate fluctuations arise. The carrying amounts of the Company’s foreign currency denominated monetary assets and monetary liabilities as of December 31, 2019 and 2020 are as follows:

		Assets								Liabilities
Type		2019				2020				2019				2020
		In thousands of foreign currencies
AED			57,403				39,678				40,061				31,594
AUD			143				133				1,036,785				707,538
BDT			85,547				93,442				635				—
BWP			1,437				890				—				—
EGP			—				—				—				948
CAD			86				247				3,112				1,840
CHF			—				—				500,753				500,406
CNY			—				—				26,140				—
CZK			—				—				243				2,033
EUR			208				310				111,199				121,069
GBP			—				—				191				43
HKD			—				—				1,648,815				1,651,839
IDR			376,136				342,496				219,801				555,241
INR			1,244,170				1,231,895				210,232				155,134
JOD			1,516				1,673				147				—
JPY			109,970				825,269				314,402				484,585
KZT			319				1,510				—				—
MGA			3,858,201				5,645,349				133,403				—
MMK			29,651				11,032				—				—
PHP			175,210				191,122				130,073				104,161
PKR			354,361				371,328				4,366				12,222
SAR			2,653				2,178				480				—
SEK			—				—				449,072				449,824
USD			1,227,054				1,445,522				9,963,928				12,234,563
UYU			58,781				78,265				8,213				1,585
VND			418,998				672,563				1,375				—
ZAR			450				303				6				—

Sensitivity analysis of Foreign currency risk

A sensitivity analysis on the Company’s income for the period assuming a 10% increase and decrease in currency exchange rates as of December 31, 2019 and 2020 are as follows:

						2019								2020
Type						10% Increase				10% Decrease				10% Increase				10% Decrease
						In millions of won
Increase (decrease) of profit before income tax		￦					(1,197,530	)			1,197,530				(1,336,821	)			1,336,821
Increase (decrease) of equity(*)							(1,197,530	)			1,197,530				(1,336,821	)			1,336,821

(*) The effect on the shareholders’ equity excluding the impact of income taxes.

Interest rate risk

The Company’s borrowings and debt securities with floating interest rates as of December 31, 2019 and 2020 are as follows:

Type						2019				2020
						In millions of won
Short-term borrowings		￦					—				171,518
Long-term borrowings							2,273,579				2,191,322
Debt securities							243,102				250,968
		￦					2,516,681				2,613,808

Sensitivity analysis of Interest rate risk

A sensitivity analysis on the Company’s long-term borrowings and debt securities assuming a 1% increase and decrease in interest rates, without consideration of hedge effect of related derivatives for the years ended December 31, 2019 and 2020 are as follows:

						2019								2020
Type						1% Increase				1% Decrease				1% Increase				1% Decrease
						In millions of won
Increase (decrease) of profit before income tax		￦					(25,167	)			25,167				(26,138	)			26,138
Increase (decrease) of shareholder’s equity (*)							(25,167	)			25,167				(26,138	)			26,138

(*) The effect on the shareholders’ equity excluding the impact of income taxes.

Electricity rates risk

A sensitivity analysis on the Company’s income for the period assuming a 1% increase and decrease in price of electricity for the years ended December 31, 2019 and 2020 is as follows:

						2019								2020
Type						1% Increase				1% Decrease				1% Increase				1% Decrease
						In millions of won
Increase (decrease) of profit before income tax		￦					559,390				(559,390	)			557,310				(557,310	)
Increase (decrease) of shareholder’s equity(*)							559,390				(559,390	)			557,310				(557,310	)

(*) The effect on the equity excluding the impact of income taxes.

Details of maturities of non-derivative financial liabilities

						2019
Type						Less than 1 year				1~2 Years				2~5 Years				More than 5 years				Total
						In millions of won
Borrowings and debt securities		￦					10,660,737				10,997,510				27,881,873				30,859,669				80,399,789
Finance lease liabilities							686,445				617,449				1,717,434				2,735,681				5,757,009
Trade and other payables							6,014,054				382,809				971,469				1,176,697				8,545,029
Financial guarantee contracts(*)							937,091				302,186				32,314				2,066,975				3,338,566
		￦					18,298,327				12,299,954				30,603,090				36,839,022				98,040,393

						2020
Type						Less than 1 year				1~2 Years				2~5 Years				More than 5 years				Total
						In millions of won
Borrowings and debt securities		￦					12,413,346				10,919,041				24,778,020				34,215,888				82,326,295
Finance lease liabilities							614,442				569,161				1,564,377				2,461,557				5,209,537
Trade and other payables							5,679,856				373,907				894,903				1,167,171				8,115,837
Financial guarantee contracts (*)							926,244				348,860				26,230				1,923,362				3,224,696
		￦					19,633,888				12,210,969				27,263,530				39,767,978				98,876,365

(*) This represents the total guarantee amounts associated with the financial guarantee contracts. Financial guarantee liabilities which are recognized as of December 31, 2019 and 2020 are ￦81,357 million and ￦66,354 million, respectively.

The expected maturities for non-derivative financial assets

The expected maturities for non-derivative financial assets as of December 31, 2019 and 2020 in detail are as follows:

						2019
Type						Less than 1 year				1~5 Years				More than 5 years				Other (*)				Total
						In millions of won
Cash and cash equivalents		￦					1,810,129				—				—				—				1,810,129
Financial assets at fair value through other comprehensive income							—				—				—				379,170				379,170
Financial assets at amortized cost							12,302				1,307				—				—				13,609
Loans							64,081				346,583				336,502				27,606				774,772
Long-term/short-term financial instruments							1,351,971				269,863				—				338,393				1,960,227
Financial assets at fair value through profit or loss							131,385				79				—				615,797				747,261
Trade and other receivables							7,703,746				980,951				818,431				207,979				9,711,107
		￦					11,073,614				1,598,783				1,154,933				1,568,945				15,396,275

						2020
Type						Less than 1 year				1~5 Years				More than 5 years				Other (*)				Total
						In millions of won
Cash and cash equivalents		￦					2,029,584				—				—				—				2,029,584
Financial assets at fair value through other comprehensive income							—				—				—				358,559				358,559
Financial assets at amortized cost							13,149				1,265				8				—				14,422
Loans							78,805				385,571				325,212				31,506				821,094
Long-term/short-term financial instruments							1,483,482				252,349				386				325,886				2,062,103
Financial assets at fair value through profit or loss							1,196,101				—				2,690				682,591				1,881,382
Trade and other receivables							7,920,005				1,160,400				704,494				—				9,784,899
		￦					12,721,126				1,799,585				1,032,790				1,398,542				16,952,043

(*) The maturities cannot be presently determined.

Derivative liabilities classified by maturity periods which from reporting date to maturity date of contracts

Derivative liabilities classified by maturity periods which from reporting date to maturity dates as per the contracts as of December 31, 2019 and 2020 are as follows:

						2019
Type						Less than 1 year				1~2 Years				2~5 Years				More than 5 years				Total
						In millions of won
Net settlement
—Trading		￦					(3,017	)			—				—				—				(3,017	)
Gross settlement
—Trading							(15,011	)			(8,295	)			(39,654	)			4,235				(58,725	)
—Hedging							(59,846	)			(21,466	)			(1,914	)			(33,588	)			(116,814	)
		￦					(77,874	)			(29,761	)			(41,568	)			(29,353	)			(178,556	)

						2020
Type						Less than 1 year				1~2 Years				2~5 Years				More than 5 years				Total
						In millions of won
Net settlement
—Trading		￦					—				—				—				—				—
Gross settlement
—Trading							(12,777	)			(22,827	)			(118,704	)			(4,380	)			(158,688	)
—Hedging							(37,858	)			(39,528	)			(75,450	)			(55,208	)			(208,044	)
		￦					(50,635	)			(62,355	)			(194,154	)			(59,588	)			(366,732	)

Derivative assets classified by maturity periods which from reporting date to maturity dates as per the contracts

Derivative assets classified by maturity periods which from reporting date to maturity dates as per the contracts as of December 31, 2019 and 2020 are as follows:

						2019
Type						Less than 1 year				1~2 Years				2~5 Years				More than 5 years				Total
						In millions of won
Net settlement
—Trading		￦					—				—				—				—				—
Gross settlement
—Trading							21				43,931				72,386				56,315				172,653
—Hedging							27,597				47,222				71,010				—				145,829
—Others							—				—				—				2,634				2,634
		￦					27,618				91,153				143,396				58,949				321,116

						2020
Type						Less than 1 year				1~2 Years				2~5 Years				More than 5 years				Total
						In millions of won
Net settlement
—Trading		￦					—				—				—				—				—
Gross settlement
—Trading							18,332				1,529				45,237				52,163				117,261
—Hedging							11,191				—				41,206				3,252				55,649
		￦					29,523				1,529				86,443				55,415				172,910

Fair value and book value of financial assets and liabilities

Fair value and book value of financial assets and liabilities as of December 31, 2019 and 2020 are as follows:

						2019								2020
Type						Book value				Fair value				Book value				Fair value
						In millions of won
Assets recognized at fair value
Financial assets at fair value through other comprehensive income		￦					379,170				379,170				358,559				358,559
Derivative assets (trading)							165,204				165,204				110,764				110,764
Derivative assets (applying hedge accounting)							145,829				145,829				55,649				55,649
Financial assets at fair value through profit or loss							747,261				747,261				1,881,382				1,881,382
		￦					1,437,464				1,437,464				2,406,354				2,406,354
Assets carried at amortized cost
Financial assets at amortized cost		￦					13,609				13,609				14,422				14,422
Loans and receivables							738,707				738,707				790,162				790,162
Long-term financial instruments							608,256				608,256				578,621				578,621
Short-term financial instruments							1,351,971				1,351,971				1,483,482				1,483,482
Trade and other receivables							9,703,749				9,703,749				9,780,039				9,780,039
Cash and cash equivalents							1,810,129				1,810,129				2,029,584				2,029,584
		￦					14,226,421				14,226,421				14,676,310				14,676,310
Liabilities recognized at fair value
Derivative liabilities (trading)		￦					53,147				53,147				157,926				157,926
Derivative liabilities (applying hedge accounting)							116,813				116,813				207,193				207,193
		￦					169,960				169,960				365,119				365,119
Liabilities carried at amortized cost
Secured borrowings		￦					227,135				227,135				63,614				63,614
Unsecured bond							63,171,664				66,917,421				64,607,401				68,839,316
Lease liabilities							5,070,133				5,070,133				4,621,096				4,621,096
Unsecured borrowings							4,104,523				4,113,955				4,808,206				5,513,242
Trade and other payables (*)							8,545,029				8,545,029				8,115,837				8,115,837
Bank overdraft							373,219				373,219				245,360				245,360
		￦					81,491,703				85,246,892				82,461,514				87,398,465

(*) Excludes lease liabilities.

Interest rates used for determining fair value

The discount rate used for calculating fair value as of December 31, 2019 and 2020 are as follows:

Type		2019				2020
Derivatives			0.01% ~ 4.16%				(-) 0.73% ~ 3.08%
Borrowings and debt securities			0.17% ~ 3.90%				(-) 0.53% ~ 4.38%
Finance lease			1.38% ~ 10.83%				0.57% ~ 16.60%

Fair value hierarchy

Fair values of financial instruments by hierarchy level as of December 31, 2019 and 2020 are as follows:

						2019
Type						Level 1				Level 2				Level 3				Total
						In millions of won
Financial assets at fair value
Financial assets at fair value through other comprehensive income		￦					201,202				—				177,968				379,170
Derivative assets							—				308,399				2,634				311,033
Financial assets at fair value through profit or loss							—				742,105				5,156				747,261
		￦					201,202				1,050,504				185,758				1,437,464
Financial liabilities at fair value
Derivative liabilities		￦					—				169,960				—				169,960

						2020
Type						Level 1				Level 2				Level 3				Total
						In millions of won
Financial assets at fair value
Financial assets at fair value through other comprehensive income		￦					194,670				—				163,889				358,559
Derivative assets							—				166,413				—				166,413
Financial assets at fair value through profit or loss							—				1,875,690				5,692				1,881,382
		￦					194,670				2,042,103				169,581				2,406,354
Financial liabilities at fair value
Derivative liabilities		￦					—				365,119				—				365,119

Changes of financial assets and liabilities which are classified as level 3

Changes of financial assets and liabilities which are classified as level 3 for the years ended December 31, 2019 and 2020 are as follows:

						2019
						Beginning balance				Acquisitions				Reclassified category				Valuation				Disposal				Foreign currency translation				Ending balance
						In millions of won
Financial assets at fair value
Financial assets at fair value through profit or loss Cooperative		￦					5,052				40				—				64				—				—				5,156
Financial assets at fair value through other comprehensive income
Unlisted securities							189,439				1,876				—				3,715				(19,315	)			2,253				177,968

						2020
						Beginning balance				Acquisitions				Reclassified category				Valuation				Disposal				Foreign currency translation				Ending balance
						In millions of won
Financial assets at fair value
Financial assets at fair value through profit or loss Cooperative		￦					5,156				359				—				623				(446	)			—				5,692
Financial assets at fair value through other comprehensive income
Unlisted securities							177,968				2,900				—				(23,128	)			(1	)			6,150				163,889

X

- Definition

The disclosure of an analysis of the present value of a defined benefit obligation that distinguishes the nature, characteristics and risks of the obligation. Such a disclosure could distinguish: (a) between amounts owing to active members, deferred members, and pensioners; (b) between vested benefits and accrued but not vested benefits; and (c) between conditional benefits, amounts attributable to future salary increases and other benefits. [Refer: Defined benefit obligation, at present value]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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-IssueDate 2020-01-01
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Reference 1: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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