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Commitments and Contingencies - Summary of Major Commitments with Local Financial Institutions (Detail) - Dec. 31, 2022 € in Millions, ₩ in Millions, ¥ in Millions, $ in Millions, $ in Millions | KRW (₩) | USD ($) | EUR (€) | SGD ($) | JPY (¥)
--- | --- | --- | --- | --- | ---
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Limit | ₩ 3,277,690 | $ 2,983,017 | € 7,700 | $ 284,000 | ¥ 0
Used amount | 516,447 | 2,142,507 | 7,700 | 284,000 | 400,000
Bank overdraft [member] | Kookmin Bank and others [member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Limit | 372,000 |  |  |  |
Used amount | 0 |  |  |  |
Inter-Korean Cooperation Fund [member] | Export-Import Bank of Korea [member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Limit | 37,700 |  |  |  |
Used amount | 1,974 |  |  |  |
Economic Cooperation Business Insurance [member] | Export-Import Bank of Korea [member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Limit | 3,240 |  |  |  |
Used amount | 1,732 |  |  |  |
Collateralised loans on electronic receivable-trade [member] | Kookmin Bank and others [member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Limit | 567,150 |  |  |  |
Used amount | 28,298 |  |  |  |
Plus electronic notes payable [member] | Industrial Bank of Korea [member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Limit | 50,000 |  |  |  |
Used amount | 1,663 |  |  |  |
Working capital loan | Korea Development Bank and others [member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Limit | 1,415,600 |  |  |  |
Used amount | 165,100 |  |  |  |
Working capital loan | Shinhan Bank [member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Limit | $ |  | 72,507 |  |  |
Used amount | $ |  | 72,507 |  |  |
Working capital loan | Woori Bank [Member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Limit | € |  |  | 7,700 |  |
Used amount | € |  |  | € 7,700 |  |
Facility loans [member] | Shinhan Bank and others [member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Limit | 824,000 |  |  |  |
Used amount | 309,680 |  |  |  |
Derivatives transaction limit [member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Used amount | $ |  | 100,000 |  |  |
Derivatives transaction limit [member] | Korea Development Bank and others [member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Limit | $ |  | 2,510,510 |  |  |
Used amount | $ |  | 1,970,000 |  |  |
Derivatives transaction limit [member] | Shinhan Bank [member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Limit | 8,000 |  |  |  |
Used amount | ₩ 8,000 |  |  |  |
Derivatives transaction limit [member] | DBS Bank [Member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Limit | $ |  |  |  | 284,000 |
Used amount | $ |  |  |  | $ 284,000 |
Derivatives transaction limit [member] | Citi Bank [Member] |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |
Limit | $ |  | $ 400,000 |  |  |
Used amount | ¥ |  |  |  |  | ¥ 400,000

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