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Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2021

Disclosure of detailed information about property, plant and equipment [abstract]

Summary of Property, Plant and Equipment

(1)	Property, plant and equipment as of December 31, 2020 and 2021 are as follows:


						2020
						Acquisition cost				Government grants				Accumulated depreciation				Accumulated impairment losses				Book value
						In millions of won
Land		￦					13,970,098				(23,475	)			—				(26,772	)			13,919,851
Buildings							21,773,824				(57,231	)			(9,150,218	)			(7,074	)			12,559,301
Structures							74,136,523				(180,009	)			(27,864,461	)			(13,207	)			46,078,846
Machinery							94,295,027				(157,785	)			(43,740,838	)			(515,402	)			49,881,002
Ships							2,482				—				(2,227	)			—				255
Vehicles							338,386				(632	)			(259,288	)			(115	)			78,351
Equipment							1,895,528				(227	)			(1,487,643	)			(42	)			407,616
Tools							1,195,721				(239	)			(1,003,295	)			(39	)			192,148
Construction-in-progress							31,121,255				(79,126	)			—				(157,530	)			30,884,599
Right-of-use assets							7,905,214				—				(3,363,048	)			—				4,542,166
Asset retirement costs							12,260,732				—				(4,701,138	)			(146,423	)			7,413,171
Others							13,979,980				—				(11,227,899	)			—				2,752,081

		￦					272,874,770				(498,724	)			(102,800,055	)			(866,604	)			168,709,387


						2021
						Acquisition cost				Government grants				Accumulated depreciation				Accumulated impairment losses				Book value
						In millions of won
Land		￦					14,135,452				(23,474	)			—				(27,487	)			14,084,491
Buildings							22,973,395				(52,122	)			(10,041,270	)			(7,073	)			12,872,930
Structures							78,473,094				(172,021	)			(30,171,363	)			(13,205	)			48,116,505
Machinery							101,049,793				(140,082	)			(48,791,577	)			(514,991	)			51,603,143
Ships							2,068				—				(1,891	)			—				177
Vehicles							371,207				(1,675	)			(281,833	)			(117	)			87,582
Equipment							1,989,115				(149	)			(1,591,890	)			(42	)			397,034
Tools							1,256,189				(64	)			(1,073,086	)			(38	)			183,001
Construction-in-progress							30,313,624				(111,822	)			—				(157,530	)			30,044,272
Right-of-use assets							7,848,138				—				(3,788,741	)			—				4,059,397
Asset retirement costs							14,348,920				—				(5,277,109	)			(146,423	)			8,925,388
Others							14,852,245				—				(12,106,384	)			—				2,745,861

		￦					287,613,240				(501,409	)			(113,125,144	)			(866,906	)			173,119,781

Summary of Changes in Property, Plant and Equipment

(2)	Changes in property, plant and equipment for the years ended December 31, 2021 and 2020 are as follows:


						2020
						Beginning balance				Acquisition				Disposal				Depreciation				Impairment				Others				Ending balance
						In millions of won
Land		￦					13,848,063				5,330				(31,304	)			(273	)			—				121,510				13,943,326
(Government grants)							(21,817	)			—				2				—				—				(1,660	)			(23,475	)
Buildings							12,445,706				7,225				(16,015	)			(875,680	)			(2,107	)			1,057,403				12,616,532
(Government grants)							(61,920	)			—				—				5,206				—				(517	)			(57,231	)
Structures							45,178,870				36,091				(346,612	)			(2,313,920	)			(3,571	)			3,707,997				46,258,855
(Government grants)							(186,554	)			—				2,032				9,526				—				(5,013	)			(180,009	)
Machinery							49,907,300				407,521				(283,845	)			(5,526,816	)			(74,362	)			5,608,989				50,038,787
(Government grants)							(158,907	)			—				496				17,468				—				(16,842	)			(157,785	)
Ships							201				—				—				(106	)			—				160				255
Vehicles							70,585				3,880				(151	)			(35,036	)			—				39,705				78,983
(Government grants)							(2,275	)			—				4				2,064				—				(425	)			(632	)
Equipment							374,115				72,655				(86	)			(186,004	)			—				147,163				407,843
(Government grants)							(241	)			—				—				149				—				(135	)			(227	)
Tools							164,064				28,048				(193	)			(82,862	)			—				83,330				192,387
(Government grants)							(403	)			—				—				243				—				(79	)			(239	)
Construction-in-progress							28,419,470				12,726,469				(486	)			—				7,799				(10,189,527	)			30,963,725
(Government grants)							(61,211	)			8,783				—				—				—				(26,698	)			(79,126	)
Right-of-use assets							4,783,573				291,334				(827	)			(586,254	)			—				54,340				4,542,166
Asset retirement costs							7,374,527				131				(196	)			(819,708	)			—				858,417				7,413,171
Others							2,628,681				6,470				(8,145	)			(984,097	)			(366	)			1,109,538				2,752,081

		￦					164,701,827				13,593,937				(685,326	)			(11,376,100	)			(72,607	)			2,547,656				168,709,387


						2021
						Beginning balance				Acquisition				Disposal				Depreciation				Impairment				Others				Ending balance
						In millions of won
Land		￦					13,943,326				9,561				(54,447	)			—				—				209,525				14,107,965
(Government grants)							(23,475	)			—				1				—				—				—				(23,474	)
Buildings							12,616,532				9,036				(19,974	)			(889,539	)			—				1,208,997				12,925,052
(Government grants)							(57,231	)			—				—				5,174				—				(65	)			(52,122	)
Structures							46,258,855				(5,472	)			(319,287	)			(2,582,488	)			(741	)			4,937,659				48,288,526
(Government grants)							(180,009	)			—				1,811				9,517				—				(3,340	)			(172,021	)
Machinery							50,038,787				268,126				(135,803	)			(5,759,155	)			—				7,331,270				51,743,225
(Government grants)							(157,785	)			—				531				17,519				—				(347	)			(140,082	)
Ships							255				—				—				(103	)			—				25				177
Vehicles							78,983				4,807				(4,298	)			(37,980	)			—				47,745				89,257
(Government grants)							(632	)			(26	)			—				460				—				(1,477	)			(1,675	)
Equipment							407,843				54,875				(667	)			(184,007	)			—				119,139				397,183
(Government grants)							(227	)			—				—				95				—				(17	)			(149	)
Tools							192,387				19,389				(89	)			(81,984	)			—				53,362				183,065
(Government grants)							(239	)			—				—				209				—				(34	)			(64	)
Construction-in-progress							30,963,725				12,165,238				(66,965	)			—				(3,315	)			(12,902,589	)			30,156,094
(Government grants)							(79,126	)			5,027				—				—				—				(37,723	)			(111,822	)
Right-of-use assets							4,542,166				78,213				(11,787	)			(554,615	)			—				5,420				4,059,397
Asset retirement costs							7,413,171				92				(209	)			(844,518	)			—				2,356,852				8,925,388
Others							2,752,081				5,311				(2,332	)			(869,310	)			—				860,111				2,745,861

		￦					168,709,387				12,614,177				(613,515	)			(11,770,725	)			(4,056	)			4,184,513				173,119,781