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Investment Properties - Summary of Investment Properties Provided as Collateral (Detail) - Land and buildings [member] - KRW (₩) ₩ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Deposits 1 [member] |  |
Disclosure of detailed information about investment property [line items] |  |
Carrying amount | ₩ 460,166 | ₩ 828,103
Secured amount | ₩ 61,733 | ₩ 72,910
Related account | Deposits | Deposits
Related amount | ₩ 52,662 | ₩ 63,012
Borrowings [member] |  |
Disclosure of detailed information about investment property [line items] |  |
Carrying amount | 2,546 | 2,883
Secured amount | ₩ 3,326 | ₩ 3,688
Related account | Borrowings | Borrowings
Related amount | ₩ 2,772 | ₩ 2,728

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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