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Risk Management - Summary of Sensitivity Analysis for Foreign Currency Exchange Rates (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Increase (decrease) of profit before income tax |  |  |
Disclosure of sensitivity analysis for foreign currency exchange rates [Line Items] |  |  |
10% Increase |  | ₩ (2,114,808) | ₩ (1,828,308)
10% Decrease |  | 2,114,808 | 1,828,308
Increase (decrease) of equity |  |  |
Disclosure of sensitivity analysis for foreign currency exchange rates [Line Items] |  |  |
10% Increase | [1] | (2,114,808) | (1,828,308)
10% Decrease | [1] | ₩ 2,114,808 | ₩ 1,828,308
[1] | The effect on the shareholders’ equity excluding the impact of income taxes.

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