Deposits with Restrictions on Use - Deposits Which are Restricted in Use (Detail) - KRW (₩) ₩ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure of financial assets [line items] | ||
| Short-term financial instruments | ₩ 151,426 | ₩ 323,890 |
| Long-term financial instruments | 370 | 373 |
| Financial instruments | 151,796 | 324,263 |
| Restricted deposits [member] | ||
| Disclosure of financial assets [line items] | ||
| Short-term financial instruments | 90,163 | 79,500 |
| Long-term financial instruments | 370 | 372 |
| Financial instruments | ₩ 90,533 | ₩ 79,872 |