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Borrowings - Summary of Short-term Borrowing (Detail) ₩ in Millions, $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 KRW (₩) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 KRW (₩) | Dec. 31, 2021 USD ($)
Disclosure of detailed information about borrowings [line items] |  |  |  |
Annual interest rates | 0.00% | 0.00% |  |
Short-term borrowings [member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Short-term borrowings | ₩ 504,998 |  | ₩ 338,927 |
Short-term borrowings [member] | NongHyup Bank [member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Short-term borrowings | ₩ 9,000 |  |  |
Annual interest rates description | COFIX(6M)+1.780 |  |  |
Short-term borrowings [member] | NongHyup Bank [member] | Bottom of range [member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Annual interest rates | 4.69% | 4.69% |  |
Short-term borrowings [member] | NongHyup Bank [member] | Top of range [member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Annual interest rates | 4.94% | 4.94% |  |
Short-term borrowings [member] | Shinhan Bank [member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Short-term borrowings | ₩ 105,000 |  | 4,500 |
Short-term borrowings [member] | Shinhan Bank [member] | Bottom of range [member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Annual interest rates | 3.84% | 3.84% |  |
Short-term borrowings [member] | Shinhan Bank [member] | Top of range [member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Annual interest rates | 6.44% | 6.44% |  |
Short-term borrowings [member] | Shinhan Bank 1 [Member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Short-term borrowings | ₩ 30,000 |  |  |
Annual interest rates description | CD(91D)+1.750 |  |  |
Short-term borrowings [member] | Korea Development Bank [member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Short-term borrowings | ₩ 27,201 |  | 16,000 |
Short-term borrowings [member] | Korea Development Bank [member] | Bottom of range [member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Annual interest rates | 4.63% | 4.63% |  |
Short-term borrowings [member] | Korea Development Bank [member] | Top of range [member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Annual interest rates | 6.20% | 6.20% |  |
Short-term borrowings [member] | Woori Bank [Member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Short-term borrowings | ₩ 20,000 |  | 20,000 |
Annual interest rates description | KORIBOR(3M)+1.960 |  |  |
Short-term borrowings [member] | Industrial Bank Of Korea [member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Annual interest rates | 4.88% | 4.88% |  |
Short-term borrowings | ₩ 6,000 |  | 6,000 |
Short-term borrowings [member] | Hana Bank [Member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Short-term borrowings | ₩ 5,000 |  | 5,000 |
Annual interest rates description | CD(91D)-0.020 |  |  |
Short-term borrowings [member] | KB SECURITIES [Member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Annual interest rates | 5.904% | 5.904% |  |
Short-term borrowings | ₩ 94,822 |  | 71,000 |
Short-term borrowings [member] | Shinhan Investment [Member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Short-term borrowings |  |  | 73,000 |
Short-term borrowings [member] | KIWOOM Securities [Member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Short-term borrowings |  |  | 63,000 |
Short-term borrowings [member] | NH INVESTMENT SECURITIES [Member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Annual interest rates | 5.07% | 5.07% |  |
Short-term borrowings | ₩ 20,000 |  | 53,000 |
Short-term borrowings [member] | Korea Investment Securities [Member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Short-term borrowings |  |  | 10,000 |
Short-term borrowings [member] | HSBC [Member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Annual interest rates | 5.09% | 5.09% |  |
Short-term borrowings | ₩ 23,451 | $ 18,500 | ₩ 17,427 | $ 14,700
Short-term borrowings [member] | IBK Securities [Member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Annual interest rates | 5.07% | 5.07% |  |
Short-term borrowings | ₩ 20,000 |  |  |
Short-term borrowings [member] | Hi Investment Securities and Others [Member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Annual interest rates | 3.71% | 3.71% |  |
Short-term borrowings | ₩ 99,524 |  |  |
Short-term borrowings [member] | Woori Bank One [Member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Short-term borrowings | ₩ 30,000 |  |  |
Annual interest rates description | CD(91D)+1.430 |  |  |
Short-term borrowings [member] | Nong Hyup Bank One [Member] |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Short-term borrowings | ₩ 15,000 |  |  |

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