v3.26.1
Operating Segments - Reconciliation of Total Segment Operating Income to Consolidated Operating Profit from Continuing Operations (Detail) - KRW (₩)
₩ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of operating segments [line items]      
Total segment operating profit ₩ 1,048,501 ₩ 1,690,862 ₩ 1,756,276
Gain on disposal of property and equipment and intangible assets 127,058 37,316 21,898
Other operating income 170,434 72,288 50,366
Impairment loss on property and equipment and intangible assets (3,140) (94,736) (10,369)
Loss on disposal of property and equipment and intangible assets (15,296) (17,427) (9,369)
Bad debt for accounts receivable – other (3,282) (4,838) (5,256)
Other operating expenses (2,059,343) (1,863,956) (1,651,273)
Impairment loss on assets held for sale 12,320 0 0
Operating segments [member]      
Disclosure of operating segments [line items]      
Total segment operating profit 1,095,762 1,831,559 1,750,235
Operating segments [member] | Adjustments [member]      
Disclosure of operating segments [line items]      
Total segment operating profit [1] (22,547) (8,150) 2,969
Operating segments [member] | After adjustments [member]      
Disclosure of operating segments [line items]      
Total segment operating profit 1,073,215 1,823,409 1,753,204
Adjustments [member]      
Disclosure of operating segments [line items]      
Gain on disposal of property and equipment and intangible assets 127,058 37,316 21,898
Others 43,376 34,972 28,468
Other operating income 170,434 72,288 50,366
Impairment loss on property and equipment and intangible assets (3,140) (94,736) (10,369)
Loss on disposal of property and equipment and intangible assets (15,296) (17,427) (9,369)
Donations (15,339) (15,712) (14,766)
Bad debt for accounts receivable – other (3,282) (4,838) (5,256)
Others [2] (145,771) (72,122) (7,534)
Other operating expenses (195,148) ₩ (204,835) ₩ (47,294)
Impairment loss on assets held for sale ₩ (12,320)    
[1] Adjustments for operating profit included the amount due to the consolidation adjustments, such as internal transactions.
[2] Others for the years ended December 31, 2025 and 2024 include ₩134.8 billion and ₩55.4 billion of penalties, respectively, and various other expenses with inconsequential amounts.