v3.26.1
Property and Equipment - Changes in Property and Equipment (Parenthetical) (Detail) - KRW (₩)
₩ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disposal groups classified as held for sale [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Classified as held for sale, property, plant and equipment ₩ 13,512 ₩ 17,412