XML 137 R127.htm IDEA: XBRL DOCUMENT v3.26.1
Property, Plant and Equipment, Net - Summary of Property, Plant and Equipment (Detail) - KRW (₩)
₩ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment ₩ 42,292,820 ₩ 39,846,828 ₩ 35,206,248
Gross amount [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 99,520,984 94,080,403  
Accumulated depreciation, amortization and impairment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment (57,133,280) (54,160,363)  
Government grants (94,884) (73,212)  
Land [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 3,686,386 3,335,875 3,290,244
Land [member] | Gross amount [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 3,700,385 3,353,019  
Land [member] | Accumulated depreciation, amortization and impairment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment (8,261) (12,144)  
Government grants (5,738) (5,000)  
Buildings [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 5,793,840 5,280,968 4,427,632
Buildings [member] | Gross amount [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 12,970,144 12,097,246  
Buildings [member] | Accumulated depreciation, amortization and impairment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment (7,164,018) (6,808,735)  
Government grants (12,286) (7,543)  
Structures [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 4,290,373 3,860,523 3,081,524
Structures [member] | Gross amount [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 9,030,274 8,292,323  
Structures [member] | Accumulated depreciation, amortization and impairment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment (4,739,870) (4,431,766)  
Government grants (31) (34)  
Machinery and equipment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 18,205,327 18,311,678 16,539,192
Machinery and equipment [member] | Gross amount [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 60,640,317 58,845,673  
Machinery and equipment [member] | Accumulated depreciation, amortization and impairment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment (42,410,343) (40,516,816)  
Government grants (24,647) (17,179)  
Vehicles [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 100,615 89,975 79,595
Vehicles [member] | Gross amount [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 502,658 433,218  
Vehicles [member] | Accumulated depreciation, amortization and impairment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment (400,506) (340,993)  
Government grants (1,537) (2,250)  
Tools [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 118,257 134,501 128,865
Tools [member] | Gross amount [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 623,466 609,799  
Tools [member] | Accumulated depreciation, amortization and impairment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment (504,974) (474,877)  
Government grants (235) (421)  
Furniture and fixtures [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 219,168 200,033 189,887
Furniture and fixtures [member] | Gross amount [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 993,990 911,525  
Furniture and fixtures [member] | Accumulated depreciation, amortization and impairment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment (774,780) (711,472)  
Government grants (42) (20)  
Bearer plants [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 362,871 139,451 137,331
Bearer plants [member] | Gross amount [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 588,892 203,433  
Bearer plants [member] | Accumulated depreciation, amortization and impairment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment (226,021) (63,982)  
Construction-in-progress [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 8,141,656 7,523,190 6,333,673
Construction-in-progress [member] | Gross amount [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 8,399,751 7,744,779  
Construction-in-progress [member] | Accumulated depreciation, amortization and impairment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment (207,727) (180,824)  
Government grants (50,368) (40,765)  
Right-of-use assets [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 1,374,327 970,634 ₩ 998,305
Right-of-use assets [member] | Gross amount [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment 2,071,107 1,589,388  
Right-of-use assets [member] | Accumulated depreciation, amortization and impairment [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment ₩ (696,780) ₩ (618,754)