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Borrowings - Summary of Long-term Borrowings (Detail) € in Millions, ₩ in Millions, $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2023 KRW (₩) | Dec. 31, 2023 USD ($) | Dec. 31, 2023 EUR (€) | Dec. 31, 2022 KRW (₩) | Dec. 31, 2022 USD ($) | Dec. 31, 2022 EUR (€)
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 0.00% | 0.00% | 0.00% |  |  |
Borrowings | ₩ 10,218,165 |  |  | ₩ 10,006,685 |  |
Total | 7,159,601 |  |  | 8,179,643 |  |
Long-term borrowings [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings | 1,356,251 |  |  | 1,083,705 |  |
Less: Current portion | (699,800) |  |  | (167,943) |  |
Total | ₩ 656,451 |  |  | 915,762 |  |
Long-term borrowings [member] | General loans [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates description | CD(91D)+0.750 |  |  |  |  |
Borrowings | ₩ 32,000 |  |  |  |  |
Long-term borrowings [member] | Export-Import Bank of Korea [member] | Inter-Korean Cooperation Fund [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 1.00% | 1.00% | 1.00% |  |  |
Borrowings | ₩ 1,480 |  |  | 1,974 |  |
Long-term borrowings [member] | Shinhan Bank [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings | $ |  | $ 8,910 |  |  | $ 8,910 |
Long-term borrowings [member] | Shinhan Bank [member] | General loans [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates description | Term SOFR(3M)+1.100 |  |  |  |  |
Borrowings | ₩ 11,489 |  |  | 11,292 |  |
Long-term borrowings [member] | Shinhan Bank [member] | General Loans 1 [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings |  |  |  | 48,158 | 38,000 |
Long-term borrowings [member] | Shinhan Bank [member] | General Loans 2 [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings | ₩ 40,655 | $ 31,472 |  | 39,855 | 31,472 |
Long-term borrowings [member] | Shinhan Bank [member] | General Loans 2 [member] | Bottom of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 1.90% | 1.90% | 1.90% |  |  |
Long-term borrowings [member] | Shinhan Bank [member] | General Loans 2 [member] | Top of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 3.20% | 3.20% | 3.20% |  |  |
Long-term borrowings [member] | Shinhan Bank [member] | General Loans 3 [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 4.49% | 4.49% | 4.49% |  |  |
Borrowings | ₩ 62,398 |  |  | 62,398 |  |
Long-term borrowings [member] | Shinhan Bank [member] | General Loans 4 [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates description | Term SOFR(3M)+1.300 |  |  |  |  |
Borrowings | ₩ 27,241 | $ 21,127 |  | 26,774 | $ 21,127 |
Long-term borrowings [member] | Shinhan Bank [member] | General Loans 5 [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates description | Term SOFR(3M)+1.940 |  |  |  |  |
Borrowings | ₩ 45,129 | $ 35,000 |  |  |  |
Long-term borrowings [member] | Shinhan Bank [member] | General Loans 6 [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates description | CD(91D)+1.800 |  |  |  |  |
Borrowings | ₩ 16,900 |  |  |  |  |
Long-term borrowings [member] | Shinhan Bank [member] | General Loans 7 [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates description | EURIBOR(3M)+0.900 |  |  |  |  |
Borrowings | ₩ 10,985 |  | € 7,700 | 10,404 |  | € 7,700
Long-term borrowings [member] | CA-CIB [member] | General loans [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings | ₩ 200,000 |  |  | 200,000 |  |
Long-term borrowings [member] | CA-CIB [member] | General loans [member] | Bottom of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 3.38% | 3.38% | 3.38% |  |  |
Long-term borrowings [member] | CA-CIB [member] | General loans [member] | Top of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 4.15% | 4.15% | 4.15% |  |  |
Long-term borrowings [member] | Korea Development Bank [member] | General loans [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings | ₩ 137,000 |  |  | 38,000 |  |
Long-term borrowings [member] | Korea Development Bank [member] | General loans [member] | Bottom of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 3.00% | 3.00% | 3.00% |  |  |
Long-term borrowings [member] | Korea Development Bank [member] | General loans [member] | Top of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 4.87% | 4.87% | 4.87% |  |  |
Long-term borrowings [member] | Woori Bank [Member] | General loans [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings | ₩ 41,526 |  |  | 15,000 |  |
Long-term borrowings [member] | Woori Bank [Member] | General loans [member] | Bottom of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 3.32% | 3.32% | 3.32% |  |  |
Long-term borrowings [member] | Woori Bank [Member] | General loans [member] | Top of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 5.80% | 5.80% | 5.80% |  |  |
Long-term borrowings [member] | Woori Bank [Member] | PF Loans [Member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings |  |  |  | 40,682 |  |
Long-term borrowings [member] | Kyobo Life Insurance [Member] | PF Loans [Member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings | ₩ 84,586 |  |  | 66,390 |  |
Long-term borrowings [member] | Kyobo Life Insurance [Member] | PF Loans [Member] | Bottom of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates description | CD(91D)+1.150 |  |  |  |  |
Long-term borrowings [member] | Kyobo Life Insurance [Member] | PF Loans [Member] | Top of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates description | CD(91D) +3.450 |  |  |  |  |
Long-term borrowings [member] | Samsung Life Insurance [Member] | PF Loans [Member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings | ₩ 46,992 |  |  | 36,883 |  |
Long-term borrowings [member] | Samsung Life Insurance [Member] | PF Loans [Member] | Bottom of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 1.86% | 1.86% | 1.86% |  |  |
Long-term borrowings [member] | Samsung Life Insurance [Member] | PF Loans [Member] | Top of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 4.16% | 4.16% | 4.16% |  |  |
Long-term borrowings [member] | JPM [Member] | General loans [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings | ₩ 200,000 |  |  | 100,000 |  |
Long-term borrowings [member] | JPM [Member] | General loans [member] | Bottom of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 2.70% | 2.70% | 2.70% |  |  |
Long-term borrowings [member] | JPM [Member] | General loans [member] | Top of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 4.48% | 4.48% | 4.48% |  |  |
Long-term borrowings [member] | DBS [Member] | General loans [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 4.079% | 4.079% | 4.079% |  |  |
Borrowings | ₩ 100,000 |  |  | 100,000 |  |
Long-term borrowings [member] | Hi Investment Securities [Member] | CP [Member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 2.302% | 2.302% | 2.302% |  |  |
Borrowings | ₩ 92,994 |  |  | 90,724 |  |
Long-term borrowings [member] | NH Jayang [Member] | PF Loans [Member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates description | CD(91D)+1.150 |  |  |  |  |
Borrowings | ₩ 53,033 |  |  | 59,066 |  |
Long-term borrowings [member] | Standard Chartered Bank Korea [Member] | PF Loans [Member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings | ₩ 56,390 |  |  | 44,260 |  |
Long-term borrowings [member] | Standard Chartered Bank Korea [Member] | PF Loans [Member] | Bottom of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates description | CD(91D)+1.150 |  |  |  |  |
Long-term borrowings [member] | Standard Chartered Bank Korea [Member] | PF Loans [Member] | Top of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates description | CD(91D) +3.450 |  |  |  |  |
Long-term borrowings [member] | Bookook investment [member] | CP [Member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings | ₩ 19,525 |  |  | 18,806 |  |
Long-term borrowings [member] | Bookook investment [member] | CP [Member] | Bottom of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 3.49% | 3.49% | 3.49% |  |  |
Long-term borrowings [member] | Bookook investment [member] | CP [Member] | Top of range [member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 3.603% | 3.603% | 3.603% |  |  |
Long-term borrowings [member] | Korea Investment [member] | CP [Member] |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Annual interest rates | 3.622% | 3.622% | 3.622% |  |  |
Borrowings | ₩ 75,928 |  |  | ₩ 73,039 |  |

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