Financial Risk Management - Summary of Gross Carrying Amounts of Each Financial Asset Except for Accounts Receivable Trade and Derivative Financial Asset (Detail) ₩ in Millions |
Dec. 31, 2025
KRW (₩)
|
|---|---|
| Financial assets at fair value through profit or loss [member] | |
| Disclosure of credit risk exposure [line items] | |
| Gross amount | ₩ 205,614 |
| Loss allowance | 0 |
| Carrying amount | 205,614 |
| Financial assets at FVOCI [member] | |
| Disclosure of credit risk exposure [line items] | |
| Gross amount | 812,203 |
| Loss allowance | (2,262) |
| Carrying amount | 809,941 |
| Financial assets at amortised cost [member] | 12-month expected credit losses [member] | |
| Disclosure of credit risk exposure [line items] | |
| Gross amount | 10,342 |
| Loss allowance | (3,330) |
| Carrying amount | 7,012 |
| Financial assets at amortised cost [member] | Lifetime expected credit losses [member] | Financial instruments not credit-impaired [member] | |
| Disclosure of credit risk exposure [line items] | |
| Gross amount | 39,013 |
| Loss allowance | (34,721) |
| Carrying amount | ₩ 4,292 |