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Borrowings - Summary of Korean Won and Foreign Currency Borrowings (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
Disclosure of detailed information about borrowings [line items] |  |
Maturity | Jun. 5, 2025 |
Annual interest rates | 0.00% |
Borrowings | ₩ 8,437,703 | ₩ 7,316,298
The 1st CB(Private) Jun. 5, 2025 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings | 6,442 | 5,623
Redemption premium |  | 2,267
Bond discount issuance |  | (4,644)
The 1st CB(Private) Jun. 5, 2020 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings | 6,442 |
Redemption premium | 2,267 |
Bond discount issuance | (3,825) |
The 1st CB(Private) Jun. 5, 2020 [member] | The 1st CB(Private) Jun. 5, 2025 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowings | ₩ 8,000 | ₩ 8,000

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