v3.26.1
Intangible Assets - Research and Development Expenditures Recognized as Expense (Detail) - KRW (₩)
₩ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of detailed information about intangible assets [abstract]      
Research and development costs expensed as incurred ₩ 339,507 ₩ 378,079 ₩ 369,507