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Fair Value - Summary of Valuation Techniques and Inputs (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Assets |  |  |
Financial assets at fair value through other comprehensive income | ₩ 1,665,368 | ₩ 1,680,168 |
Other financial assets |  |  |
Financial assets at fair value through profit or loss | 1,029,926 | 939,661 |
Derivative financial assets for hedging | 445,471 | 159,211 |
Investment properties | 2,299,616 | 2,198,135 | ₩ 1,933,358
Liabilities |  |  |
Borrowing | 10,520,690 | 10,218,165 |
Other financial liabilities |  |  |
Financial liabilities at fair value through profit or loss | 132,011 | 136,106 |
Derivative financial liabilities for hedging | 3 | 24,547 |
Level 2 [Member] |  |  |
Other financial assets |  |  |
Derivative financial assets for hedging | 445,471 |  |
Liabilities |  |  |
Borrowing | ₩ 10,423,619 | ₩ 9,979,545 |
Other financial liabilities |  |  |
Valuation techniques | DCF Model |  |
Valuation techniques | DCF Model | DCF Model |
Description of inputs used in fair value measurement, assets | Market observation discount rate |  |
Description of inputs used in fair value measurement, liabilities | Bond interest rate | Bond interest rate |
Level 2 [Member] | Derivative financial liabilities for hedging [member] |  |  |
Other financial liabilities |  |  |
Derivative financial liabilities for hedging | ₩ 3 | ₩ 24,547 |
Valuation techniques | DCF Model | DCF Model |
Description of inputs used in fair value measurement, assets |  | Market observation discount rate, Swap interest rate |
Description of inputs used in fair value measurement, liabilities | Market observation discount rate | Market observation discount rate |
Level 2 [Member] | Financial assets at fair value through other comprehensive income [member] | Trades and other receivables [member] |  |  |
Assets |  |  |
Financial assets at fair value through other comprehensive income | ₩ 114,774 | ₩ 116,198 |
Other financial liabilities |  |  |
Valuation techniques | DCF Model | DCF Model |
Description of inputs used in fair value measurement, assets | Guaranteed bond interest rate | Guaranteed bond interest rate |
Level 2, 3 [Member] |  |  |
Other financial assets |  |  |
Derivative financial assets for hedging |  | ₩ 159,211 |
Other financial liabilities |  |  |
Valuation techniques |  | DCF Model |
Level 2, 3 [Member] | Financial liabilities at fair value through profit or loss [member] |  |  |
Other financial liabilities |  |  |
Financial liabilities at fair value through profit or loss | ₩ 132,011 |  |
Valuation techniques | DCF Model, Binomial Option Pricing Model, |  |
Description of inputs used in fair value measurement, liabilities | Treasury Bond Interest rate | Forward exchange rate Forward interest rate |
Level 2, 3 [Member] | Financial assets at fair value through profit or loss [member] |  |  |
Other financial assets |  |  |
Financial assets at fair value through profit or loss | ₩ 1,024,306 | ₩ 925,750 |
Other financial liabilities |  |  |
Valuation techniques | DCF Model, Adjusted Net Asset Model, Monte-Carlo Simulation | DCF Model, Adjusted Net Asset Model, Monte-Carlo Simulation |
Description of inputs used in fair value measurement, assets | Market Interest rate, Underlying asset price | Market Interest rate, Underlying asset price |
Level 2, 3 [Member] | Financial assets at fair value through other comprehensive income [member] |  |  |
Assets |  |  |
Financial assets at fair value through other comprehensive income | ₩ 348,248 | ₩ 449,232 |
Other financial liabilities |  |  |
Valuation techniques | DCF Model, Market Approach Model | DCF Model, Market Approach Model |
Description of inputs used in fair value measurement, assets | Discount rate | Discount rate |
Level 3 [Member] |  |  |
Other financial assets |  |  |
Investment properties | ₩ 6,899,105 | ₩ 5,276,169 |
Other financial liabilities |  |  |
Valuation techniques | DCF Model | DCF Model |
Level 3 [Member] | Financial liabilities at fair value through profit or loss [member] |  |  |
Other financial liabilities |  |  |
Financial liabilities at fair value through profit or loss |  | ₩ 136,106 |
Valuation techniques |  | DCF Model, Binomial Option Pricing Model, Monte-Carlo Simulation |

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- Definition The amount of financial assets at fair value through other comprehensive income. [Refer: At fair value [member]; Financial assets; Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 8 -Subparagraph h -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_8_h&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of financial assets that are measured at fair value and for which gains (losses) are recognised in profit or loss. A financial asset shall be measured at fair value through profit or loss unless it is measured at amortised cost or at fair value through other comprehensive income. A gain (loss) on a financial asset measured at fair value shall be recognised in profit or loss unless it is part of a hedging relationship, it is an investment in an equity instrument for which the entity has elected to present gains and losses in other comprehensive income or it is a financial asset measured at fair value through other comprehensive income. [Refer: At fair value [member]; Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 8 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_8_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of financial liabilities that meet either of the following conditions: (a) they meet the definition of held for trading; or (b) upon initial recognition they are designated by the entity as at fair value through profit or loss. An entity may use this designation only when permitted by paragraph 4.3.5 of IFRS 9 (embedded derivatives) or when doing so results in more relevant information, because either: (a) it eliminates or significantly reduces a measurement or recognition inconsistency (sometimes referred to as ‘an accounting mismatch’) that would otherwise arise from measuring assets or liabilities or recognising the gains and losses on them on different bases; or (b) a group of financial liabilities or financial assets and financial liabilities is managed and its performance is evaluated on a fair value basis, in accordance with a documented risk management or investment strategy, and information about the group is provided internally on that basis to the entity’s key management personnel (as defined in IAS 24). [Refer: At fair value [member]; Key management personnel of entity or parent [member]; Derivatives [member]; Financial assets; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 8 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_8_e&doctype=Standard -URIDate 2024-03-27 + Details
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