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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, 2022 | Dec. 31, 2021
Increase (decrease) of profit before income tax |  |  |
Disclosure of sensitivity analysis for foreign currency exchange rates [Line Items] |  |  |
10% Increase |  | ₩ (1,703,053) | ₩ (1,439,185)
10% Decrease |  | 1,703,053 | 1,439,185
Increase (decrease) of equity |  |  |
Disclosure of sensitivity analysis for foreign currency exchange rates [Line Items] |  |  |
10% Increase | [1] | (1,703,053) | (1,439,185)
10% Decrease | [1] | ₩ 1,703,053 | ₩ 1,439,185
[1] | The effect on the shareholders’ equity excluding the impact of income taxes.

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