Capital - Schedule of Other Components of Equity (Details) - KRW (₩) ₩ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure Of Accumulated Other Comprehensive Income [Line Items] | ||
| Total | ₩ 25,523 | ₩ 23,801 |
| Factors for re-measurement of defined benefit liabilities | ||
| Disclosure Of Accumulated Other Comprehensive Income [Line Items] | ||
| Total | 33 | 16 |
| Foreign currency translation adjustments | ||
| Disclosure Of Accumulated Other Comprehensive Income [Line Items] | ||
| Total | ₩ 25,490 | ₩ 23,785 |