Long-term Payables – other - Repayment Schedule of the Principal Amount of Long-term Payables - Other Related to Acquisition of Frequency Usage Rights (Detail) - Gross amount [member] - KRW (₩) ₩ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure of financial liabilities [line items] | ||
| Payables related to acquisition of frequency usage rights | ₩ 551,925 | ₩ 921,075 |
| Less than 1 year [member] | ||
| Disclosure of financial liabilities [line items] | ||
| Payables related to acquisition of frequency usage rights | 369,150 | |
| 1~3 years [Member] | ||
| Disclosure of financial liabilities [line items] | ||
| Payables related to acquisition of frequency usage rights | ₩ 182,775 |