Statements of Cash Flows - Significant Non-cash Transactions (Detail) - KRW (₩) ₩ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Significant Non-cash Investing and Financing Transactions [abstract] | |||
| Decrease in accounts payable – other relating to the acquisition of property and equipment and intangible assets | ₩ (194,029) | ₩ (130,413) | ₩ (305,823) |
| Increase of right-of-use assets | 278,554 | 523,494 | 345,761 |
| Transfer from property and equipment to investment property | 16,929 | (5,482) | 13,900 |
| Increase in accounts payable – other relating to the acquisition of shares | ₩ 0 | ₩ 1,195,642 | ₩ 0 |