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Investments in Associates and Joint Ventures - Additional Information (Details) | 12 Months Ended |
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Dec. 31, 2022 | Dec. 31, 2021
Time Period One [Member] | Daegu Green Power Co., Ltd. |  |
Disclosure Of Investments in Associates and Joint Ventures [Line Items] |  |
Duration from the date of investment after which the rights to purchase the shares may be exercised | 5 years |
Time Period Two [Member] | Daegu Green Power Co., Ltd. |  |
Disclosure Of Investments in Associates and Joint Ventures [Line Items] |  |
Duration from the date of investment after which the rights to purchase the shares may be exercised | 10 years |
Time Period Three [Member] | Daegu Green Power Co., Ltd. |  |
Disclosure Of Investments in Associates and Joint Ventures [Line Items] |  |
Duration from the date of investment after which the rights to purchase the shares may be exercised | 13 years |
Korea Gas Corporation |  |
Disclosure Of Investments in Associates and Joint Ventures [Line Items] |  |
Post tax discount rate | 5.20% | 4.90%
Gemeng International Energy Co., Ltd. | Woori Spot PEF [Member] |  |
Disclosure Of Investments in Associates and Joint Ventures [Line Items] |  |
Put options as a percentage of shares | 8.00% |
Operating fees percentage | 1.00% |
Maturity date of the put options | Dec. 25, 2023 |

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